WISE J0254+0223: Difference between revisions

WISEPA J025409.45+022359.1
	; WISE 0254+0223; Credit: unWISE
Observation data; Epoch MJD 55588.27 Equinox J2000
Constellation	Cetus
Right ascension	02h 54m 09.62s
Declination	02° 23′ 58.85″
Characteristics
Spectral type	T8
Apparent magnitude (Y (MKO filter system))	16.999±0.014
Apparent magnitude (J (2MASS filter system))	16.557±0.156
Apparent magnitude (J (MKO filter system))	15.916±0.008
Apparent magnitude (H (2MASS filter system))	15.884±0.199
Apparent magnitude (H (MKO filter system))	16.29±0.02
Apparent magnitude (KS (2MASS filter system))	>16.006
Apparent magnitude (K (MKO filter system))	16.73±0.05
Astrometry
Proper motion (μ)	RA: 2588±27 mas/yr ; Dec.: 273±27 mas/yr
Parallax (π)	146.1 ± 1.5 mas
Distance	22.3 ± 0.2 ly ; (6.84 ± 0.07 pc)
Other designations
	WISEPC J025409.45+022359.1; WISEPA J025409.45+022359.1; WISE J0254+0223; PSO J043.5395+02.3995; PSO J043.5+02
Database references
SIMBAD	data

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Latest revision as of 08:05, 21 February 2024

WISEPA J025409.45+022359.1 (designation is abbreviated to WISE 0254+0223) is a brown dwarf of spectral class T8,^[1]^[7] located in constellation Cetus at approximately 22.3 light-years from Earth.^[4]

History of observations

Discovery

WISE 0254+0223 was discovered in 2011 from data, collected by Wide-field Infrared Survey Explorer (WISE) Earth-orbiting satellite — NASA infrared-wavelength 40 cm (16 in) space telescope, which mission lasted from December 2009 to February 2011. WISE 0254+0223 has two discovery papers: Scholz et al. (2011) and Kirkpatrick et al. (2011) (the first was published earlier).^[5]^[1]

Scholz et al. discovered two late T-type brown dwarfs, including WISE 0254+0223, using preliminary data release from WISE and follow-up near-infrared spectroscopy with LUCIFER1 near-infrared camera/spectrograph at the Large Binocular Telescope (LBT).
Kirkpatrick et al. presented discovery of 98 new found by WISE brown dwarf systems with components of spectral types M, L, T and Y, among which also was WISE 0254+0223.^[1]^{[~ 1]}

Distance

Currently the most accurate distance estimate of WISE 0254+0223 is a trigonometric parallax, measured using the Spitzer Space Telescope and published in 2019 by Kirkpatrick et al.: 146.1±1.5 mas, corresponding to a distance 6.84±0.07 pc, or 22.3±0.2 ly.^[4]

WISE 0254+0223 distance estimates

Source	Parallax, mas	Distance, pc	Distance, ly	Ref.
Scholz et al. (2011) (preprint version 1)		5.5+1.4 −1.1	17.9+4.6 −3.6	^[8]
Scholz et al. (2011)		5.5+2.3 −1.6	17.9+7.5 −5.2	^[5]
Kirkpatrick et al. (2011), Table 6		~ 6.9	~ 22.5	^[1]
Kirkpatrick et al. (2011), Table 7	165±46	6.1+2.3 −1.3	19.8+7.6 −4.3	^[1]
Liu et al. (2011)		7.2±0.7	23.5±2.3	^[6]
Liu et al. (2011)	171±45	5.8+2.1 −1.2	19.1+7.8 −4.0	^[6]
Scholz et al. (2012)	165±20	6.1+0.8 −0.7	19.8+2.7 −2.1	^[9]
Marsh et al. (2013) (according to Kirkpatrick et al. (2012))	166±26	6.0+1.1 −0.8	19.6+3.6 −2.7	^[7]
Marsh et al. (2013)	185±42	4.9+1.0 −0.6^{[~ 2]}	16.0^+3.3 _−2.0	^[10]
Dupuy & Kraus (2013)	135 ± 15^{[~ 3]}	7.4+0.9 −0.7	24.2+3.0 −2.4	^[3]

Non-trigonometric distance estimates are marked in italic. The most accurate estimate is marked in bold.

Space motion

WISE 0254+0223 has a large proper motion of about 2602 milliarcseconds per year.^[3]

WISE 0254+0223 proper motion estimates

Source	μ, mas/yr	P. A., °	μ_RA, mas/yr	μ_DEC, mas/yr	Ref.
Scholz et al. (2011)	2511	84	2496±46	276±47	^[5]
Kirkpatrick et al. (2011)	2546	85	2534±28	243±37	^[1]
Marsh et al. (2013)	2596	83	2578±42	309±50	^[10]
Dupuy & Kraus (2013)	2602±27	84.0±0.6	2588±27	273±27	^[3]

The most accurate estimates are marked in bold.

Notes

^ These 98 brown dwarf systems are only among first, not all brown dwarf systems, discovered from data, collected by WISE: six discoveries were published earlier (however, also listed in Kirkpatrick et al. (2011)) in Mainzer et al. (2011) and Burgasser et al. (2011), and the other discoveries were published later.
^ In this parallax and distance estimates the most probable distance value does not equal to inverse maximum likelihood parallax value, as would be in the case of exact parallax and distance values. This is because Marsh et al. used a more sophisticated method of converting maximum likelihood parallaxes into most probable distances, that uses also some prior information, and not just the calculation of the inverse value. (The method description see in Marsh et al. (2013), Section 4).
^ Relative parallax.

References

^ ^a ^b ^c ^d ^e ^f ^g ^h ⁱ ^j ^k ^l ^m ⁿ ^o ^p Kirkpatrick, J. Davy; Cushing, Michael C.; Gelino, Christopher R.; Griffith, Roger L.; Skrutskie, Michael F.; Marsh, Kenneth A.; Wright, Edward L.; Mainzer, Amy K.; Eisenhardt, Peter R.; McLean, Ian S.; Thompson, Maggie A.; Bauer, James M.; Benford, Dominic J.; Bridge, Carrie R.; Lake, Sean E.; Petty, Sara M.; Stanford, Spencer Adam; Tsai, Chao-Wei; Bailey, Vanessa; Beichman, Charles A.; Bloom, Joshua S.; Bochanski, John J.; Burgasser, Adam J.; Capak, Peter L.; Cruz, Kelle L.; Hinz, Philip M.; Kartaltepe, Jeyhan S.; Knox, Russell P.; Manohar, Swarnima; Masters, Daniel; Morales-Calderon, Maria; Prato, Lisa A.; Rodigas, Timothy J.; Salvato, Mara; Schurr, Steven D.; Scoville, Nicholas Z.; Simcoe, Robert A.; Stapelfeldt, Karl R.; Stern, Daniel; Stock, Nathan D.; Vacca, William D. (2011). "The First Hundred Brown Dwarfs Discovered by the Wide-field Infrared Survey Explorer (WISE)". The Astrophysical Journal Supplement. 197 (2): 19. arXiv:1108.4677v1. Bibcode:2011ApJS..197...19K. doi:10.1088/0067-0049/197/2/19. S2CID 16850733.
^ ^a ^b ^c ^d Liu, Michael C.; Dupuy, Trent J.; Bowler, Brendan P.; Leggett, S. K.; Best, William M. J. (2012). "Two Extraordinary Substellar Binaries at the T/Y Transition and the Y-band Fluxes of the Coolest Brown Dwarfs". The Astrophysical Journal. 758 (1): 57. arXiv:1206.4044. Bibcode:2012ApJ...758...57L. doi:10.1088/0004-637X/758/1/57. S2CID 118402490.
^ ^a ^b ^c ^d ^e Dupuy, T. J.; Kraus, A. L. (2013). "Distances, Luminosities, and Temperatures of the Coldest Known Substellar Objects". Science. 341 (6153): 1492–5. arXiv:1309.1422. Bibcode:2013Sci...341.1492D. doi:10.1126/science.1241917. PMID 24009359. S2CID 30379513.
^ ^a ^b ^c Kirkpatrick, J. Davy; Martin, Emily C.; et al. (February 2019). "Preliminary Trigonometric Parallaxes of 184 Late-T and Y Dwarfs and an Analysis of the Field Substellar Mass Function into the "Planetary" Mass Regime". The Astrophysical Journal Supplement Series. 240 (2): 19. arXiv:1812.01208. Bibcode:2019ApJS..240...19K. doi:10.3847/1538-4365/aaf6af. S2CID 119451195.
^ ^a ^b ^c ^d ^e Scholz, R.-D.; Bihain, G.; Schnurr, O.; Storm, J. (2011). "Two very nearby (d ~ 5 pc) ultracool brown dwarfs detected by their large proper motions from WISE, 2MASS, and SDSS data". Astronomy & Astrophysics. 532: L5. arXiv:1105.4059. Bibcode:2011A&A...532L...5S. doi:10.1051/0004-6361/201117297. S2CID 73703535.
^ ^a ^b ^c ^d Liu, Michael C.; Deacon, Niall R.; Magnier, Eugene A.; Dupuy, Trent J.; Aller, Kimberly M.; Bowler, Brendan P.; Redstone, Joshua; Goldman, Bertrand; Burgett, W. S.; Chambers, K. C.; Hodapp, K. W.; Kaiser, N.; Kudritzki, R.-P.; Morgan, J. S.; Price, P. A.; Tonry, J. L.; Wainscoat, R. J. (2011). "A Search for High Proper Motion T Dwarfs with PAN-STARRS1 + 2MASS + WISE". The Astrophysical Journal Letters. 740 (2): L32. arXiv:1107.4608. Bibcode:2011ApJ...740L..32L. doi:10.1088/2041-8205/740/2/L32. S2CID 118650819.
^ ^a ^b Kirkpatrick, J. Davy; Gelino, Christopher R.; Cushing, Michael C.; Mace, Gregory N.; Griffith, Roger L.; Skrutskie, Michael F.; Marsh, Kenneth A.; Wright, Edward L.; Eisenhardt, Peter R.; McLean, Ian S.; Mainzer, Amy K.; Burgasser, Adam J.; Tinney, Chris G.; Parker, Stephen; Salter, Graeme (2012). "Further Defining Spectral Type "Y" and Exploring the Low-mass End of the Field Brown Dwarf Mass Function". The Astrophysical Journal. 753 (2): 156. arXiv:1205.2122. Bibcode:2012ApJ...753..156K. doi:10.1088/0004-637X/753/2/156. S2CID 119279752.
^ Scholz, R.-D.; Bihain, G.; Schnurr, O.; Storm, J. (2011). "Two very nearby (d~5 pc) ultracool brown dwarfs detected by their large proper motions from WISE, 2MASS, and SDSS data". arXiv:1105.4059v1 [astro-ph.GA].
^ Scholz, R.-D.; Bihain, G.; Schnurr, O.; Storm, J. (2012). "UKIDSS detections of cool brown dwarfs. Proper motions of 14 known >T5 dwarfs and discovery of three new T5.5-T6 dwarfs". Astronomy & Astrophysics. 541: A163. arXiv:1204.2380. Bibcode:2012A&A...541A.163S. doi:10.1051/0004-6361/201218947. S2CID 119238179.
^ ^a ^b Marsh, Kenneth A.; Wright, Edward L.; Kirkpatrick, J. Davy; Gelino, Christopher R.; Cushing, Michael C.; Griffith, Roger L.; Skrutskie, Michael F.; Eisenhardt, Peter R. (2013). "Parallaxes and Proper Motions of Ultracool Brown Dwarfs of Spectral Types Y and Late T". The Astrophysical Journal. 762 (2): 119. arXiv:1211.6977. Bibcode:2013ApJ...762..119M. doi:10.1088/0004-637X/762/2/119. S2CID 42923100.

External links

Two new nearby brown dwarfs found Archived 2011-10-30 at the Wayback Machine (Phil Plait August 9, 2011)
Solstation.com (New Objects within 20 light-years)

[note_1-8] These 98 brown dwarf systems are only among first, not all brown dwarf systems, discovered from data, collected by WISE: six discoveries were published earlier (however, also listed in Kirkpatrick et al. (2011)) in Mainzer et al. (2011) and Burgasser et al. (2011), and the other discoveries were published later.

[note_2-11] In this parallax and distance estimates the most probable distance value does not equal to inverse maximum likelihood parallax value, as would be in the case of exact parallax and distance values. This is because Marsh et al. used a more sophisticated method of converting maximum likelihood parallaxes into most probable distances, that uses also some prior information, and not just the calculation of the inverse value. (The method description see in Marsh et al. (2013), Section 4).

[note_3-13] Relative parallax.

[Kirkpatrick2011-1] ^ ^a ^b ^c ^d ^e ^f ^g ^h ⁱ ^j ^k ^l ^m ⁿ ^o ^p Kirkpatrick, J. Davy; Cushing, Michael C.; Gelino, Christopher R.; Griffith, Roger L.; Skrutskie, Michael F.; Marsh, Kenneth A.; Wright, Edward L.; Mainzer, Amy K.; Eisenhardt, Peter R.; McLean, Ian S.; Thompson, Maggie A.; Bauer, James M.; Benford, Dominic J.; Bridge, Carrie R.; Lake, Sean E.; Petty, Sara M.; Stanford, Spencer Adam; Tsai, Chao-Wei; Bailey, Vanessa; Beichman, Charles A.; Bloom, Joshua S.; Bochanski, John J.; Burgasser, Adam J.; Capak, Peter L.; Cruz, Kelle L.; Hinz, Philip M.; Kartaltepe, Jeyhan S.; Knox, Russell P.; Manohar, Swarnima; Masters, Daniel; Morales-Calderon, Maria; Prato, Lisa A.; Rodigas, Timothy J.; Salvato, Mara; Schurr, Steven D.; Scoville, Nicholas Z.; Simcoe, Robert A.; Stapelfeldt, Karl R.; Stern, Daniel; Stock, Nathan D.; Vacca, William D. (2011). "The First Hundred Brown Dwarfs Discovered by the Wide-field Infrared Survey Explorer (WISE)". The Astrophysical Journal Supplement. 197 (2): 19. arXiv:1108.4677v1. Bibcode:2011ApJS..197...19K. doi:10.1088/0067-0049/197/2/19. S2CID 16850733.

[Liu2012-2] Liu, Michael C.; Dupuy, Trent J.; Bowler, Brendan P.; Leggett, S. K.; Best, William M. J. (2012). "Two Extraordinary Substellar Binaries at the T/Y Transition and the Y-band Fluxes of the Coolest Brown Dwarfs". The Astrophysical Journal. 758 (1): 57. arXiv:1206.4044. Bibcode:2012ApJ...758...57L. doi:10.1088/0004-637X/758/1/57. S2CID 118402490.

[Dupuy2013-3] Dupuy, T. J.; Kraus, A. L. (2013). "Distances, Luminosities, and Temperatures of the Coldest Known Substellar Objects". Science. 341 (6153): 1492–5. arXiv:1309.1422. Bibcode:2013Sci...341.1492D. doi:10.1126/science.1241917. PMID 24009359. S2CID 30379513.

[Kirkpatrick2019-4] Kirkpatrick, J. Davy; Martin, Emily C.; et al. (February 2019). "Preliminary Trigonometric Parallaxes of 184 Late-T and Y Dwarfs and an Analysis of the Field Substellar Mass Function into the "Planetary" Mass Regime". The Astrophysical Journal Supplement Series. 240 (2): 19. arXiv:1812.01208. Bibcode:2019ApJS..240...19K. doi:10.3847/1538-4365/aaf6af. S2CID 119451195.

[Scholz2011-5] Scholz, R.-D.; Bihain, G.; Schnurr, O.; Storm, J. (2011). "Two very nearby (d ~ 5 pc) ultracool brown dwarfs detected by their large proper motions from WISE, 2MASS, and SDSS data". Astronomy & Astrophysics. 532: L5. arXiv:1105.4059. Bibcode:2011A&A...532L...5S. doi:10.1051/0004-6361/201117297. S2CID 73703535.

[Liu2011-6] Liu, Michael C.; Deacon, Niall R.; Magnier, Eugene A.; Dupuy, Trent J.; Aller, Kimberly M.; Bowler, Brendan P.; Redstone, Joshua; Goldman, Bertrand; Burgett, W. S.; Chambers, K. C.; Hodapp, K. W.; Kaiser, N.; Kudritzki, R.-P.; Morgan, J. S.; Price, P. A.; Tonry, J. L.; Wainscoat, R. J. (2011). "A Search for High Proper Motion T Dwarfs with PAN-STARRS1 + 2MASS + WISE". The Astrophysical Journal Letters. 740 (2): L32. arXiv:1107.4608. Bibcode:2011ApJ...740L..32L. doi:10.1088/2041-8205/740/2/L32. S2CID 118650819.

[Kirkpatrick2012-7] Kirkpatrick, J. Davy; Gelino, Christopher R.; Cushing, Michael C.; Mace, Gregory N.; Griffith, Roger L.; Skrutskie, Michael F.; Marsh, Kenneth A.; Wright, Edward L.; Eisenhardt, Peter R.; McLean, Ian S.; Mainzer, Amy K.; Burgasser, Adam J.; Tinney, Chris G.; Parker, Stephen; Salter, Graeme (2012). "Further Defining Spectral Type "Y" and Exploring the Low-mass End of the Field Brown Dwarf Mass Function". The Astrophysical Journal. 753 (2): 156. arXiv:1205.2122. Bibcode:2012ApJ...753..156K. doi:10.1088/0004-637X/753/2/156. S2CID 119279752.

[Scholz2011v1-9] Scholz, R.-D.; Bihain, G.; Schnurr, O.; Storm, J. (2011). "Two very nearby (d~5 pc) ultracool brown dwarfs detected by their large proper motions from WISE, 2MASS, and SDSS data". arXiv:1105.4059v1 [astro-ph.GA].

[Scholz2012-10] Scholz, R.-D.; Bihain, G.; Schnurr, O.; Storm, J. (2012). "UKIDSS detections of cool brown dwarfs. Proper motions of 14 known >T5 dwarfs and discovery of three new T5.5-T6 dwarfs". Astronomy & Astrophysics. 541: A163. arXiv:1204.2380. Bibcode:2012A&A...541A.163S. doi:10.1051/0004-6361/201218947. S2CID 119238179.

[Marsh2013-12] Marsh, Kenneth A.; Wright, Edward L.; Kirkpatrick, J. Davy; Gelino, Christopher R.; Cushing, Michael C.; Griffith, Roger L.; Skrutskie, Michael F.; Eisenhardt, Peter R. (2013). "Parallaxes and Proper Motions of Ultracool Brown Dwarfs of Spectral Types Y and Late T". The Astrophysical Journal. 762 (2): 119. arXiv:1211.6977. Bibcode:2013ApJ...762..119M. doi:10.1088/0004-637X/762/2/119. S2CID 42923100.

[1]

[2]

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[~ 1]

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[10]

[~ 3]

@@ Line 2: / Line 2: @@
 {{Sky|02|54|09.62|+|02|23|58.85|22.5}}
 {{Starbox begin
-|name=WISEPA J025409.45+022359.1}}
+|name=WISEPA J025409.45+022359.1
+}}
+{{Starbox image
+| image =[[File:WISE 0254+0223 unWISE.jpg|250px]]
+| caption = WISE 0254+0223
+| credit = [[Wide-field_Infrared_Survey_Explorer#unWISE_and_CatWISE|unWISE]]
+}}
 {{Starbox observe
 |epoch=[[Modified Julian date|MJD]] 55588.27{{r|Kirkpatrick2011}}
@@ Line 30: / Line 36: @@
 |prop_mo_ra={{val|2588|27}}{{r|Dupuy2013}}
 |prop_mo_dec={{val|273|27}}{{r|Dupuy2013}}
-|parallax=135
+|parallax=146.1
-|p_error=15
+|p_error=1.5
-|parallax_footnote={{r|Dupuy2013}}}}
+|parallax_footnote=<ref name="Kirkpatrick2019"/>
+}}
 {{Starbox catalog
-|names=[[Wide-field Infrared Survey Explorer|WISEPC]] J025409.45+022359.1{{r|Scholz2011}}<br />[[Wide-field Infrared Survey Explorer|WISEPA]] J025409.45+022359.1{{r|Kirkpatrick2011}}<br />[[Wide-field Infrared Survey Explorer|WISE]] J0254+0223{{r|Kirkpatrick2011}}<br />{{abbr|PSO|Pan-STARRS1 (PS1) survey}} J043.5395+02.3995{{r|Liu2011}}<br />{{abbr|PSO|Pan-STARRS1 (PS1) survey}} J043.5+02{{r|Liu2011}}}}
+|names=[[Wide-field Infrared Survey Explorer|WISEPC]] J025409.45+022359.1{{r|Scholz2011}}<br />[[Wide-field Infrared Survey Explorer|WISEPA]] J025409.45+022359.1{{r|Kirkpatrick2011}}<br />[[Wide-field Infrared Survey Explorer|WISE]] J0254+0223{{r|Kirkpatrick2011}}<br />{{abbr|PSO|Pan-STARRS1 (PS1) survey}} J043.5395+02.3995{{r|Liu2011}}<br />{{abbr|PSO|Pan-STARRS1 (PS1) survey}} J043.5+02{{r|Liu2011}}
+}}
+{{Starbox reference
+|Simbad=WISEP+J025409.45%2B022359.1
+}}
 {{Starbox end}}
-'''WISEPA J025409.45+022359.1''' (designation is abbreviated to '''WISE 0254+0223''') is a [[brown dwarf]] of [[spectral class]] T8,{{r|Kirkpatrick2011|Kirkpatrick2012}} located in constellation [[Cetus]] at approximately 24.2 [[light-year]]s from [[Earth]].{{r|Dupuy2013}}
+'''WISEPA J025409.45+022359.1''' (designation is abbreviated to '''WISE 0254+0223''') is a [[brown dwarf]] of [[spectral class]] T8,{{r|Kirkpatrick2011|Kirkpatrick2012}} located in constellation [[Cetus]] at approximately 22.3 [[light-year]]s from [[Earth]].<ref name="Kirkpatrick2019"/>
 ==History of observations==
 ===Discovery===
-'''WISE 0254+0223''' was discovered in 2011 from data, collected by Wide-field Infrared Survey Explorer (WISE) Earth-orbiting satellite — NASA infrared-wavelength 40&nbsp;cm (16&nbsp;in) space telescope, which mission lasted from December 2009 to February 2011. WISE 0254+0223 has two discovery papers: ''Scholz et al. (2011)'' and ''Kirkpatrick et al. (2011)'' (the first was published earlier).{{r|Scholz2011|Kirkpatrick2011}}
+WISE 0254+0223 was discovered in 2011 from data, collected by Wide-field Infrared Survey Explorer (WISE) Earth-orbiting satellite — NASA infrared-wavelength 40&nbsp;cm (16&nbsp;in) space telescope, which mission lasted from December 2009 to February 2011. WISE 0254+0223 has two discovery papers: ''Scholz et al. (2011)'' and ''Kirkpatrick et al. (2011)'' (the first was published earlier).{{r|Scholz2011|Kirkpatrick2011}}
 * Scholz ''et al.'' discovered two late T-type brown dwarfs, including WISE 0254+0223, using preliminary data release from WISE and follow-up near-infrared spectroscopy with {{abbr|LUCIFER1|LBT Near Infrared Spectroscopic Utility with Camera and Integral Field Unit for Extragalactic Research}} near-infrared camera/[[spectrograph]] at the [[Large Binocular Telescope|Large Binocular Telescope (LBT)]].
 * [[J. Davy Kirkpatrick|Kirkpatrick]] ''et al.'' presented discovery of 98 new found by WISE [[brown dwarf]] systems with components of [[spectral type]]s M, L, T and Y, among which also was WISE 0254+0223.{{r|Kirkpatrick2011}}<ref name="note 1" group="~">These 98 brown dwarf systems are only among first, not all brown dwarf systems, discovered from data, collected by WISE: six discoveries were published earlier (however, also listed in Kirkpatrick et al. (2011)) in Mainzer et al. (2011) and Burgasser et al. (2011), and the other discoveries were published later.</ref>
 ==Distance==
-Currently the most accurate distance estimate of WISE 0254+0223 is a [[trigonometric parallax]], measured using [[Spitzer Space Telescope]] and published in 2013 by Trent Dupuy and Adam Kraus: 0.135 ± 0.015 [[arcsecond|arcsec]], corresponding to a distance {{val|7.4|+0.9|-0.7|ul=pc}}, or {{val|24.2|+3.0|-2.4|ul=ly}}.{{r|Dupuy2013}}
+Currently the most accurate distance estimate of WISE 0254+0223 is a [[trigonometric parallax]], measured using the [[Spitzer Space Telescope]] and published in 2019 by Kirkpatrick ''et al.'': {{val|146.1|1.5|ul=mas}}, corresponding to a distance {{val|6.84|0.07|ul=pc}}, or {{val|22.3|0.2|ul=ly}}.<ref name="Kirkpatrick2019"/>
 '''WISE 0254+0223 distance estimates'''
@@ Line 106: / Line 117: @@
 ==References==
-{{reflist|colwidth=30em|refs=
+{{reflist|refs=
-<ref name="Scholz2011">{{cite journal  |last1=Scholz |first1=R.-D.  |author2=Bihain, G.  |author3=Schnurr, O.  |author4=Storm, J.  |year=2011  |title=Two very nearby (d ~ 5 pc) ultracool brown dwarfs detected by their large proper motions from WISE, 2MASS, and SDSS data  |journal=[[Astronomy & Astrophysics]]  |volume=532 | pages=L5  |arxiv=1105.4059  |doi=10.1051/0004-6361/201117297  |bibcode=2011A&A...532L...5S}}</ref>
+<ref name="Scholz2011">{{cite journal  |last1=Scholz |first1=R.-D.  |author2=Bihain, G.  |author3=Schnurr, O.  |author4=Storm, J.  |year=2011  |title=Two very nearby (d ~ 5 pc) ultracool brown dwarfs detected by their large proper motions from WISE, 2MASS, and SDSS data  |journal=[[Astronomy & Astrophysics]]  |volume=532 | pages=L5  |arxiv=1105.4059  |doi=10.1051/0004-6361/201117297  |bibcode=2011A&A...532L...5S|s2cid=73703535 }}</ref>
-<ref name="Kirkpatrick2011">{{cite journal | author-link=J. Davy Kirkpatrick | last=Kirkpatrick |first=J. Davy |author2=Cushing, Michael C. |author3=Gelino, Christopher R. |author4=Griffith, Roger L. |author5=Skrutskie, Michael F. |author6=Marsh, Kenneth A. |author7=Wright, Edward L. |author8=Mainzer, A. |author9=Eisenhardt, Peter R. |author10=McLean, Ian S. |author11=Thompson, Maggie A. |author12=Bauer, James M. |author13=Benford, Dominic J. |author14=Bridge, Carrie R. |author15=Lake, Sean E. |author16=Petty, Sara M. |author17=Stanford, S. A. |author18=Tsai, Chao-Wei |author19=Bailey, Vanessa |author20=Beichman, Charles A. |author21=Bloom, Joshua S. |author22=Bochanski, John J. |author23=Burgasser, Adam J. |author24=Capak, Peter L. |author25=Cruz, Kelle L. |author26=Hinz, Philip M. |author27=Kartaltepe, Jeyhan S. |author28=Knox, Russell P. |author29=Manohar, Swarnima |author30=Masters, Daniel |author31=Morales-Calderon, Maria |author32=Prato, Lisa A. |author33=Rodigas, Timothy J. |author34=Salvato, Mara |author35=Schurr, Steven D. |author36=Scoville, Nicholas Z. |author37=Simcoe, Robert A. |author38=Stapelfeldt, Karl R. |author39=Stern, Daniel |author40=Stock, Nathan D. |author41=Vacca, William D. | title=The First Hundred Brown Dwarfs Discovered by the Wide-field Infrared Survey Explorer (WISE) | date=2011 | journal=[[The Astrophysical Journal Supplement]] | volume=197 | issue=2 | pages=19 | arxiv=1108.4677v1 | doi=10.1088/0067-0049/197/2/19 | bibcode=2011ApJS..197...19K}}</ref>
-<ref name="Liu2011">{{cite journal | last=Liu |first=Michael C. |author2=Deacon, Niall R. |author3=Magnier, Eugene A. |author4=Dupuy, Trent J. |author5=Aller, Kimberly M. |author6=Bowler, Brendan P. |author7=Redstone, Joshua |author8=Goldman, Bertrand |author9=Burgett, W. S. |author10=Chambers, K. C. |author11=Hodapp, K. W. |author12=Kaiser, N. |author13=Kudritzki, R.-P. |author14=Morgan, J. S. |author15=Price, P. A. |author16=Tonry, J. L. |author17=Wainscoat, R. J. | title=A Search for High Proper Motion T Dwarfs with PAN-STARRS1 + 2MASS + WISE | year=2011 | journal=[[The Astrophysical Journal Letters]] | volume=740 | issue=2 | pages=L32 | arxiv=1107.4608 | doi=10.1088/2041-8205/740/2/L32 | bibcode=2011ApJ...740L..32L}}</ref>
+<ref name="Kirkpatrick2011">{{cite journal |doi=10.1088/0067-0049/197/2/19 |authorlink=J. Davy Kirkpatrick |last1=Kirkpatrick |first1=J. Davy |last2=Cushing |first2=Michael C. |last3=Gelino |first3=Christopher R. |last4=Griffith |first4=Roger L. |last5=Skrutskie |first5=Michael F. |last6=Marsh |first6=Kenneth A. |last7=Wright |first7=Edward L. |last8=Mainzer |first8=Amy K. |last9=Eisenhardt |first9=Peter R. |last10=McLean |first10=Ian S. |last11=Thompson |first11=Maggie A. |last12=Bauer |first12=James M. |last13=Benford |first13=Dominic J. |last14=Bridge |first14=Carrie R. |last15=Lake |first15=Sean E. |last16=Petty |first16=Sara M. |last17=Stanford |first17=Spencer Adam |last18=Tsai |first18=Chao-Wei |last19=Bailey |first19=Vanessa |last20=Beichman |first20=Charles A. |last21=Bloom |first21=Joshua S. |last22=Bochanski |first22=John J. |last23=Burgasser |first23=Adam J. |last24=Capak |first24=Peter L. |last25=Cruz |first25=Kelle L. |last26=Hinz |first26=Philip M. |last27=Kartaltepe |first27=Jeyhan S. |last28=Knox |first28=Russell P. |last29=Manohar |first29=Swarnima |last30=Masters |first30=Daniel |last31=Morales-Calderon |first31=Maria |last32=Prato |first32=Lisa A. |last33=Rodigas |first33=Timothy J. |last34=Salvato |first34=Mara |last35=Schurr |first35=Steven D. |last36=Scoville |first36=Nicholas Z. |last37=Simcoe |first37=Robert A. |last38=Stapelfeldt |first38=Karl R. |last39=Stern |first39=Daniel |last40=Stock |first40=Nathan D. |last41=Vacca |first41=William D. |title=The First Hundred Brown Dwarfs Discovered by the Wide-field Infrared Survey Explorer (WISE) |date=2011 |journal=[[The Astrophysical Journal Supplement]] |volume=197 |issue=2 |pages=19 |arxiv=1108.4677v1 |bibcode=2011ApJS..197...19K |s2cid=16850733 }}</ref>
-<ref name="Scholz2012">{{cite journal  |last1=Scholz |first1=R.-D.  |author2=Bihain, G.  |author3=Schnurr, O.  |author4=Storm, J.  |year=2012  |title=UKIDSS detections of cool brown dwarfs. Proper motions of 14 known >T5 dwarfs and discovery of three new T5.5-T6 dwarfs  |journal=[[Astronomy & Astrophysics]]  |volume=541 | pages=A163  |arxiv=1204.2380  |doi=10.1051/0004-6361/201218947  |bibcode=2012A&A...541A.163S}}</ref>
-<ref name="Kirkpatrick2012">{{cite journal | author-link=J. Davy Kirkpatrick | last1=Kirkpatrick | last2=Gelino |first1=J. D. | first2=C. R. | last3=Cushing | first3=M. C. | last4=Mace | first4=G. N. | last5=Griffith | first5=R. L. | last6=Skrutskie | first6=M. F. | last7=Marsh | first7=K. A. | last8=Wright | first8=E. L. | last9=Eisenhardt | first9=P. R. | last10=McLean | first10=I. S. | last11=Mainzer | first11=A. K. | last12=Burgasser | first12=A. J. | last13=Tinney | first13=C. G. | last14=Parker | first14=S. | last15=Salter | first15=G. | title=Further Defining Spectral Type "Y" and Exploring the Low-mass End of the Field Brown Dwarf Mass Function | year=2012 | journal=[[The Astrophysical Journal]] | volume=753 | issue=2 | pages=156 | arxiv=1205.2122 | doi=10.1088/0004-637X/753/2/156 | bibcode=2012ApJ...753..156K}}</ref>
-<ref name="Marsh2013">{{cite journal | last=Marsh |first=Kenneth A. | author2=Wright, Edward L. | author3=Kirkpatrick, J. Davy | author4=Gelino, Christopher R. | author5=Cushing, Michael C. | author6=Griffith, Roger L. | author7=Skrutskie, Michael F. | author8=Eisenhardt, Peter R. | date=2013 | title=Parallaxes and Proper Motions of Ultracool Brown Dwarfs of Spectral Types Y and Late T | journal=[[The Astrophysical Journal]] | volume=762 | issue=2 | pages=119 | arxiv=1211.6977 | bibcode=2013ApJ...762..119M | doi=10.1088/0004-637X/762/2/119}}</ref>
+<ref name="Liu2011">{{cite journal | last=Liu |first=Michael C. |author2=Deacon, Niall R. |author3=Magnier, Eugene A. |author4=Dupuy, Trent J. |author5=Aller, Kimberly M. |author6=Bowler, Brendan P. |author7=Redstone, Joshua |author8=Goldman, Bertrand |author9=Burgett, W. S. |author10=Chambers, K. C. |author11=Hodapp, K. W. |author12=Kaiser, N. |author13=Kudritzki, R.-P. |author14=Morgan, J. S. |author15=Price, P. A. |author16=Tonry, J. L. |author17=Wainscoat, R. J. | title=A Search for High Proper Motion T Dwarfs with PAN-STARRS1 + 2MASS + WISE | year=2011 | journal=[[The Astrophysical Journal Letters]] | volume=740 | issue=2 | pages=L32 | arxiv=1107.4608 | doi=10.1088/2041-8205/740/2/L32 | bibcode=2011ApJ...740L..32L|s2cid=118650819 }}</ref>
-<ref name="Liu2012">{{cite journal | last=Liu |first=Michael C. |author2=Dupuy, Trent J. |author3=Bowler, Brendan P. |author4=Leggett, S. K. |author5=Best, William M. J. | title=Two Extraordinary Substellar Binaries at the T/Y Transition and the Y-band Fluxes of the Coolest Brown Dwarfs | year=2012 | journal=[[The Astrophysical Journal]] | volume=758 | issue=1 | pages=57 | arxiv=1206.4044 | doi=10.1088/0004-637X/758/1/57 | bibcode=2012ApJ...758...57L}}</ref>
+<ref name="Scholz2012">{{cite journal  |last1=Scholz |first1=R.-D.  |author2=Bihain, G.  |author3=Schnurr, O.  |author4=Storm, J.  |year=2012  |title=UKIDSS detections of cool brown dwarfs. Proper motions of 14 known >T5 dwarfs and discovery of three new T5.5-T6 dwarfs  |journal=[[Astronomy & Astrophysics]]  |volume=541 | pages=A163  |arxiv=1204.2380  |doi=10.1051/0004-6361/201218947  |bibcode=2012A&A...541A.163S|s2cid=119238179 }}</ref>
+<ref name="Kirkpatrick2012">{{cite journal |author-link=J. Davy Kirkpatrick |last1=Kirkpatrick |first1=J. Davy |last2=Gelino |first2=Christopher R. |last3=Cushing |first3=Michael C. |last4=Mace | first4=Gregory N. |last5=Griffith |first5=Roger L. |last6=Skrutskie |first6=Michael F. |last7=Marsh |first7=Kenneth A. |last8=Wright |first8=Edward L. |last9=Eisenhardt |first9=Peter R. |last10=McLean |first10=Ian S. |last11=Mainzer | first11=Amy K. |last12=Burgasser |first12=Adam J. |last13=Tinney |first13=Chris G. |last14=Parker |first14=Stephen |last15=Salter |first15=Graeme |title=Further Defining Spectral Type "Y" and Exploring the Low-mass End of the Field Brown Dwarf Mass Function |year=2012 |journal=[[The Astrophysical Journal]] |volume=753 |issue=2 |pages=156 |arxiv=1205.2122 |doi=10.1088/0004-637X/753/2/156 |bibcode=2012ApJ...753..156K |s2cid=119279752 }}</ref>
+<ref name="Marsh2013">{{cite journal | last=Marsh |first=Kenneth A. | author2=Wright, Edward L. | author3=Kirkpatrick, J. Davy | author4=Gelino, Christopher R. | author5=Cushing, Michael C. | author6=Griffith, Roger L. | author7=Skrutskie, Michael F. | author8=Eisenhardt, Peter R. | date=2013 | title=Parallaxes and Proper Motions of Ultracool Brown Dwarfs of Spectral Types Y and Late T | journal=[[The Astrophysical Journal]] | volume=762 | issue=2 | pages=119 | arxiv=1211.6977 | bibcode=2013ApJ...762..119M | doi=10.1088/0004-637X/762/2/119|s2cid=42923100 }}</ref>
+<ref name="Liu2012">{{cite journal | last=Liu |first=Michael C. |author2=Dupuy, Trent J. |author3=Bowler, Brendan P. |author4=Leggett, S. K. |author5=Best, William M. J. | title=Two Extraordinary Substellar Binaries at the T/Y Transition and the Y-band Fluxes of the Coolest Brown Dwarfs | year=2012 | journal=[[The Astrophysical Journal]] | volume=758 | issue=1 | pages=57 | arxiv=1206.4044 | doi=10.1088/0004-637X/758/1/57 | bibcode=2012ApJ...758...57L|s2cid=118402490 }}</ref>
 <ref name="Dupuy2013">{{Cite journal
  | doi = 10.1126/science.1241917
@@ Line 124: / Line 143: @@
 | last1 = Dupuy | first1 = T. J.
 | last2 = Kraus | first2 = A. L.
-|arxiv = 1309.1422 |bibcode = 2013Sci...341.1492D | pmid=24009359}}</ref>
+|arxiv = 1309.1422 |bibcode = 2013Sci...341.1492D | pmid=24009359| s2cid = 30379513
+}}</ref>
 <ref name="Scholz2011v1">{{cite arXiv
-  |last=Scholz |first=R.-D.
+  |last1=Scholz |first1=R.-D.
   |last2=Bihain |first2=G. |last3=Schnurr |first3=O. |last4=Storm |first4=J.
   |title=Two very nearby (d~5 pc) ultracool brown dwarfs detected by their large proper motions from WISE, 2MASS, and SDSS data
@@ Line 132: / Line 153: @@
   |eprint=1105.4059v1
   |class=astro-ph.GA}}</ref>
+<ref name="Kirkpatrick2019">{{cite journal |last1=Kirkpatrick |first1=J. Davy |last2=Martin |first2=Emily C. |display-authors=etal |date=February 2019 |title=Preliminary Trigonometric Parallaxes of 184 Late-T and Y Dwarfs and an Analysis of the Field Substellar Mass Function into the "Planetary" Mass Regime |journal=[[The Astrophysical Journal Supplement Series]] |volume=240 |issue=2 |pages=19 |doi=10.3847/1538-4365/aaf6af |arxiv=1812.01208 |bibcode=2019ApJS..240...19K|s2cid=119451195 |doi-access=free }}</ref>
 }}
 ==External links==
-* [http://blogs.discovermagazine.com/badastronomy/2011/08/09/two-new-nearby-brown-dwarfs-found/ Two new nearby brown dwarfs found] ([[Phil Plait]] August 9, 2011)
+* [http://blogs.discovermagazine.com/badastronomy/2011/08/09/two-new-nearby-brown-dwarfs-found/ Two new nearby brown dwarfs found] {{Webarchive|url=https://web.archive.org/web/20111030230650/http://blogs.discovermagazine.com/badastronomy/2011/08/09/two-new-nearby-brown-dwarfs-found/ |date=2011-10-30 }} ([[Phil Plait]] August 9, 2011)
 * [http://solstation.com/stars/new-obj.htm Solstation.com (New Objects within 20 light-years)]
 {{Stars of Cetus}}
+{{DEFAULTSORT:WISE J0254+0223}}
 [[Category:Brown dwarfs]]
-[[Category:T-type stars]]
+[[Category:T-type brown dwarfs]]
-[[Category:Cetus (constellation)]]
+[[Category:Cetus]]
 [[Category:Astronomical objects discovered in 2011|20110901]]
 [[Category:WISE objects]]

Observation data Epoch MJD 55588.27^[1] Equinox J2000^[1]
WISE 0254+0223 Credit: unWISE
Constellation	Cetus
Right ascension	02^h 54^m 09.62^s^[1]
Declination	02° 23′ 58.85″^[1]
Characteristics
Spectral type	T8^[1]
Apparent magnitude (Y (MKO filter system))	16.999±0.014^[2]
Apparent magnitude (J (2MASS filter system))	16.557±0.156^[1]
Apparent magnitude (J (MKO filter system))	15.916±0.008^[2]
Apparent magnitude (H (2MASS filter system))	15.884±0.199^[1]
Apparent magnitude (H (MKO filter system))	16.29±0.02^[2]
Apparent magnitude (K_S (2MASS filter system))	>16.006^[1]
Apparent magnitude (K (MKO filter system))	16.73±0.05^[2]
Astrometry

Proper motion (μ)	RA: 2588±27^[3] mas/yr Dec.: 273±27^[3] mas/yr
Parallax (π)	146.1 ± 1.5 mas^[4]
Distance	22.3 ± 0.2 ly (6.84 ± 0.07 pc)

Other designations
WISEPC J025409.45+022359.1^[5] WISEPA J025409.45+022359.1^[1] WISE J0254+0223^[1] PSO J043.5395+02.3995^[6] PSO J043.5+02^[6]
Database references
SIMBAD	data