Sigma3 Cancri: Difference between revisions

Sigma³ Cancri
Observation data; Epoch J2000.0 Equinox J2000.0 (ICRS)
Constellation	Cancer
Right ascension	08h 59m 32.65432s
Declination	+32° 25′ 06.8093″
Apparent magnitude (V)	+5.24
Characteristics
Spectral type	G9 III
U−B color index	+0.64
B−V color index	+0.91
Astrometry
Radial velocity (Rv)	+20.82±0.21 km/s
Proper motion (μ)	RA: −43.78 mas/yr ; Dec.: −35.03 mas/yr
Parallax (π)	11.03 ± 0.28 mas
Distance	296 ± 8 ly ; (91 ± 2 pc)
Absolute magnitude (MV)	0.45
Details
Mass	2.81±0.11 M☉
Radius	10.32 R☉
Luminosity	72 L☉
Surface gravity (log g)	3.18 cgs
Temperature	5,170±21 K
Metallicity [Fe/H]	−0.03±0.06 dex
Rotational velocity (v sin i)	2.30±0.47 km/s
Age	420±40 Myr
Other designations
	σ3 Cnc, 64 Cancri, BD+32° 1821, FK5 1232, HD 76813, HIP 44154, HR 3575, SAO 61177
Database references
SIMBAD	data

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Sigma³ Cancri (σ³ Cancri) is a solitary,^[7] yellow-hued star in the zodiac constellation of Cancer. With an apparent visual magnitude of +5.24,^[2] it is a dim star that is visible to the naked eye. Based upon an annual parallax shift of 11.03 mas as seen from Earth,^[1] it is located around 296 light years from the Sun. The star's proper motion makes it a candidate for membership in the IC 2391 supercluster.^[8]

This is an evolved, G-type giant star with a stellar classification of G9 III.^[3] At the estimated age of 420^[4] million years it is a red clump star on the horizontal branch, which indicates it is generating energy through helium fusion at its core.^[9] Sigma³ Cancri has 2.8 times the mass of the Sun and has expanded to 10.3 times the Sun's radius. It is radiating 72 times the solar luminosity from its photosphere at an effective temperature of 5,170 K.^[4]

References

^ ^a ^b ^c ^d ^e ^f van Leeuwen, F. (2007), "Validation of the new Hipparcos reduction", Astronomy and Astrophysics, 474 (2): 653–664, arXiv:0708.1752, Bibcode:2007A&A...474..653V, doi:10.1051/0004-6361:20078357, S2CID 18759600.
^ ^a ^b ^c ^d Guetter, H. H.; Hewitt, A. V. (1984), "Photoelectric UBV photometry for 317 PZT and VZT stars", Astronomical Society of the Pacific, 96: 441–443, Bibcode:1984PASP...96..441G, doi:10.1086/131362.
^ ^a ^b Sato, K.; Kuji, S. (1990), "MK classification and photometry of stars used for time and latitude observations at Mizusawa and Washington", Astronomy and Astrophysics Supplement Series, 85: 1069, Bibcode:1990A&AS...85.1069S.
^ ^a ^b ^c ^d Jofré, E.; et al. (2015), "Stellar parameters and chemical abundances of 223 evolved stars with and without planets", Astronomy & Astrophysics, 574: A50, arXiv:1410.6422, Bibcode:2015A&A...574A..50J, doi:10.1051/0004-6361/201424474, S2CID 53666931.
^ Da Silva, Ronaldo; et al. (2015), "Homogeneous abundance analysis of FGK dwarf, subgiant, and giant stars with and without giant planets", Astronomy & Astrophysics, 580: A24, arXiv:1505.01726, Bibcode:2015A&A...580A..24D, doi:10.1051/0004-6361/201525770, S2CID 119216425.
^ "sig03 Cnc". SIMBAD. Centre de données astronomiques de Strasbourg. Retrieved 2017-06-11.{{cite web}}: CS1 maint: postscript (link)
^ Eggleton, P. P.; Tokovinin, A. A. (September 2008), "A catalogue of multiplicity among bright stellar systems", Monthly Notices of the Royal Astronomical Society, 389 (2): 869–879, arXiv:0806.2878, Bibcode:2008MNRAS.389..869E, doi:10.1111/j.1365-2966.2008.13596.x, S2CID 14878976.
^ Eggen, Olin J. (December 1995), "Reality Tests of Superclusters in the Young Disk Population", Astronomical Journal, 110: 2862, Bibcode:1995AJ....110.2862E, doi:10.1086/117734.
^ Mishenina, T. V.; et al. (September 2006), "Elemental abundances in the atmosphere of clump giants", Astronomy and Astrophysics, 456 (3): 1109–1120, arXiv:astro-ph/0605615, Bibcode:2006A&A...456.1109M, doi:10.1051/0004-6361:20065141, S2CID 18764566.

[vanLeeuwen2007-1] ^ ^a ^b ^c ^d ^e ^f van Leeuwen, F. (2007), "Validation of the new Hipparcos reduction", Astronomy and Astrophysics, 474 (2): 653–664, arXiv:0708.1752, Bibcode:2007A&A...474..653V, doi:10.1051/0004-6361:20078357, S2CID 18759600.

[Guetter1984-2] Guetter, H. H.; Hewitt, A. V. (1984), "Photoelectric UBV photometry for 317 PZT and VZT stars", Astronomical Society of the Pacific, 96: 441–443, Bibcode:1984PASP...96..441G, doi:10.1086/131362.

[sato1990-3] Sato, K.; Kuji, S. (1990), "MK classification and photometry of stars used for time and latitude observations at Mizusawa and Washington", Astronomy and Astrophysics Supplement Series, 85: 1069, Bibcode:1990A&AS...85.1069S.

[Jofre2015-4] Jofré, E.; et al. (2015), "Stellar parameters and chemical abundances of 223 evolved stars with and without planets", Astronomy & Astrophysics, 574: A50, arXiv:1410.6422, Bibcode:2015A&A...574A..50J, doi:10.1051/0004-6361/201424474, S2CID 53666931.

[DaSilva2015-5] Da Silva, Ronaldo; et al. (2015), "Homogeneous abundance analysis of FGK dwarf, subgiant, and giant stars with and without giant planets", Astronomy & Astrophysics, 580: A24, arXiv:1505.01726, Bibcode:2015A&A...580A..24D, doi:10.1051/0004-6361/201525770, S2CID 119216425.

[SIMBAD-6] "sig03 Cnc". SIMBAD. Centre de données astronomiques de Strasbourg. Retrieved 2017-06-11.{{cite web}}: CS1 maint: postscript (link)

[Eggleton2008-7] Eggleton, P. P.; Tokovinin, A. A. (September 2008), "A catalogue of multiplicity among bright stellar systems", Monthly Notices of the Royal Astronomical Society, 389 (2): 869–879, arXiv:0806.2878, Bibcode:2008MNRAS.389..869E, doi:10.1111/j.1365-2966.2008.13596.x, S2CID 14878976.

[Eggen1995-8] Eggen, Olin J. (December 1995), "Reality Tests of Superclusters in the Young Disk Population", Astronomical Journal, 110: 2862, Bibcode:1995AJ....110.2862E, doi:10.1086/117734.

[Mishenina2006-9] Mishenina, T. V.; et al. (September 2006), "Elemental abundances in the atmosphere of clump giants", Astronomy and Astrophysics, 456 (3): 1109–1120, arXiv:astro-ph/0605615, Bibcode:2006A&A...456.1109M, doi:10.1051/0004-6361:20065141, S2CID 18764566.

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@@ Line 1: / Line 1: @@
+{{Short description|Star in the constellation Cancer}}
 {{DISPLAYTITLE:Sigma<sup>3</sup> Cancri}}
+{{other stars by Bayer designation|Sigma Cancri{{!}}σ Cancri}}
-{{Unreferenced stub|auto=yes|date=December 2009}}
+{{Starbox begin
-:''For other star systems with this [[Bayer designation]], see [[Sigma Cancri]].''
+ | name = Sigma<sup>3</sup> Cancri
-{{Starbox short
-| name=σ<sup>3</sup> Cancri
-| epoch=[[J2000.0]]
-| constell=[[Cancer (constellation)|Cancer]]
-| ra=08<sup>h</sup>59<sup>m</sup>32.6<sup>s</sup>
-| dec=+32°25′07″
-| spectral=G8III
-| appmag_v=+5.23
-| dist_ly=320 ± 24
-| dist_pc=98 ± 7
-| names=64&nbsp;Cancri, [[Harvard Revised catalogue|HR]]&nbsp;3575, [[Henry Draper Catalogue|HD]]&nbsp;76813, [[Bonner Durchmusterung|BD]]+32°1821, [[Fifth Fundamental Catalogue|FK5]]&nbsp;1232, [[Hipparcos catalogue|HIP]]&nbsp;44154, [[Smithsonian Astrophysical Observatory catalogue|SAO]]&nbsp;61177, GC&nbsp;12417, BDS&nbsp;4874, CCDM&nbsp;08595+3225
 }}
+{{Starbox observe
+ | epoch = [[J2000.0]]
+ | equinox = [[J2000.0]] ([[International Celestial Reference System|ICRS]])
+ | constell = [[Cancer (constellation)|Cancer]]
+ | ra = {{RA|08|59|32.65432}}<ref name=vanLeeuwen2007/>
+ | dec = {{DEC|+32|25|06.8093}}<ref name=vanLeeuwen2007/>
+ | appmag_v = +5.24<ref name=Guetter1984/>
+}}
+{{Starbox character
+ | class = G9&nbsp;III<ref name=sato1990/>
+ | b-v = +0.91<ref name=Guetter1984/>
+ | u-b = +0.64<ref name=Guetter1984/>
+ | r-i =
+ | variable =
+}}
+{{Starbox astrometry
+ | radial_v = {{Val|+20.82|0.21}}<ref name=Jofre2015/>
+ | prop_mo_ra = −43.78<ref name=vanLeeuwen2007/>
+ | prop_mo_dec = −35.03<ref name=vanLeeuwen2007/>
+ | parallax = 11.03
+ | p_error = 0.28
+ | parallax_footnote = <ref name=vanLeeuwen2007/>
+ | absmag_v = 0.45<ref name=DaSilva2015/>
+}}
+{{Starbox detail
+ | source = <ref name=Jofre2015/>
+ | mass = {{Val|2.81|0.11}}
+ | radius = 10.32
+ | luminosity = 72
+ | temperature = {{Val|5170|21|fmt=commas}}
+ | gravity = 3.18
+ | metal_fe = {{Val|−0.03|0.06}}
+ | rotational_velocity = {{Val|2.30|0.47}}
+ | age_myr = {{Val|420|40}}
+}}
+{{Starbox catalog
+ | names = {{odlist | B=σ<sup>3</sup> Cnc | F=64&nbsp;Cancri | FK5=1232 | BD=+32° 1821 | HD=76813 | HIP=44154 | HR=3575 | SAO=61177 }}<ref name=SIMBAD/>
+}}
+{{Starbox reference
+ | Simbad = sig03+Cnc
+}}
+{{starbox end}}
+'''Sigma<sup>3</sup> Cancri''' (σ<sup>3</sup> Cancri) is a solitary,<ref name=Eggleton2008/> yellow-hued [[star]] in the [[zodiac]] [[constellation]] of [[Cancer (constellation)|Cancer]]. With an [[apparent visual magnitude]] of +5.24,<ref name=Guetter1984/> it is a dim star that is visible to the naked eye. Based upon an annual [[stellar parallax|parallax shift]] of 11.03&nbsp;[[milliarcsecond|mas]] as seen from Earth,<ref name=vanLeeuwen2007/> it is located around 296&nbsp;[[light year]]s from the [[Sun]]. The star's [[proper motion]] makes it a candidate for membership in the [[IC 2391]] supercluster.<ref name=Eggen1995/>
+This is an [[stellar evolution|evolved]], [[G-type star|G-type]] [[giant star]] with a [[stellar classification]] of G9&nbsp;III.<ref name=sato1990/> At the estimated age of 420<ref name=Jofre2015/>&nbsp;million years it is a [[red clump]] star on the [[horizontal branch]], which indicates it is generating energy through [[helium fusion]] at its [[stellar core|core]].<ref name=Mishenina2006/> Sigma<sup>3</sup> Cancri has 2.8 times the [[mass of the Sun]] and has expanded to 10.3 times the [[Sun's radius]]. It is radiating 72 times the [[solar luminosity]] from its [[photosphere]] at an [[effective temperature]] of 5,170&nbsp;K.<ref name=Jofre2015/>
-'''Sigma<sup>3</sup> Cancri''' (σ<sup>3</sup> Cnc, σ<sup>3</sup> Cancri) is a [[star]] in the [[constellation]] [[Cancer (constellation)|Cancer]].  It is approximately 320 [[light year]]s from [[Earth]].
+==References==
-σ<sup>3</sup> Cancri is a yellow [[stellar classification|G-type]] [[giant star|giant]] with an [[apparent magnitude]] of +5.23.
+{{reflist|refs=
+<ref name=vanLeeuwen2007>{{citation
-{{Stars of Cancer}}
+ | title=Validation of the new Hipparcos reduction
+ | last1=van Leeuwen | first1=F.
+ | journal=Astronomy and Astrophysics
+ | volume=474 | issue=2 | pages=653–664 | date=2007
+ | arxiv=0708.1752 | bibcode=2007A&A...474..653V
+ | doi=10.1051/0004-6361:20078357 | s2cid=18759600 | postscript=. }}</ref>
+<ref name=Eggen1995>{{citation
+ | title=Reality Tests of Superclusters in the Young Disk Population
+ | last1=Eggen | first1=Olin J.
+ | journal=Astronomical Journal | postscript=.
+ | volume=110 | page=2862 | date=December 1995
+ | doi=10.1086/117734 | bibcode=1995AJ....110.2862E }}</ref>
+<ref name=Mishenina2006>{{citation
+ | display-authors=1 | last1=Mishenina | first1=T. V.
+ | last2=Bienaymé | first2=O. | last3=Gorbaneva | first3=T. I.
+ | last4=Charbonnel | first4=C. | last5=Soubiran | first5=C.
+ | last6=Korotin | first6=S. A. | last7=Kovtyukh | first7=V. V.
+ | title=Elemental abundances in the atmosphere of clump giants
+ | journal=Astronomy and Astrophysics
+ | volume=456 | issue=3 | pages=1109–1120 | date=September 2006
+ | doi=10.1051/0004-6361:20065141 | bibcode=2006A&A...456.1109M
+ | arxiv=astro-ph/0605615 | s2cid=18764566 | postscript=. }}</ref>
+<ref name=Eggleton2008>{{citation
+ | last1=Eggleton | first1=P. P. | last2=Tokovinin | first2=A. A.
+ | title=A catalogue of multiplicity among bright stellar systems
+ | journal=[[Monthly Notices of the Royal Astronomical Society]]
+ | volume=389 | issue=2 | pages=869–879 | date=September 2008
+ | doi=10.1111/j.1365-2966.2008.13596.x | doi-access=free | bibcode=2008MNRAS.389..869E
+ | arxiv=0806.2878 | s2cid=14878976 | postscript=. }}</ref>
+<ref name=DaSilva2015>{{citation
+ | display-authors=1 | last1=Da Silva | first1=Ronaldo
+ | last2=Milone | first2=André de C. | last3=Rocha-Pinto | first3=Helio J.
+ | title=Homogeneous abundance analysis of FGK dwarf, subgiant, and giant stars with and without giant planets
+ | journal=Astronomy & Astrophysics | postscript=.
+ | volume=580 | pages=A24 | year=2015
+ | bibcode=2015A&A...580A..24D | doi=10.1051/0004-6361/201525770 | arxiv=1505.01726 | s2cid=119216425 }}</ref>
+<ref name=sato1990>{{citation
+ | last1=Sato | first1=K. | last2=Kuji | first2=S.
+ | title=MK classification and photometry of stars used for time and latitude observations at Mizusawa and Washington
+ | journal=Astronomy and Astrophysics Supplement Series
+ | volume=85 | pages=1069 | year=1990
+ | bibcode=1990A&AS...85.1069S | postscript=. }}</ref>
+<ref name=Jofre2015>{{citation
+ | last1=Jofré | first1=E. | last2=Petrucci | first2=R.
+ | last3=Saffe | first3=C. | last4=Saker | first4=L.
+ | last5=Artur de la Villarmois | first5=E. | last6=Chavero | first6=C.
+ | last7=Gómez | first7=M. | last8=Mauas | first8=P. J. D.
+ | title=Stellar parameters and chemical abundances of 223 evolved stars with and without planets
+ | journal=Astronomy & Astrophysics | display-authors=1
+ | volume=574 | pages=A50 | year=2015
+ | arxiv=1410.6422 | bibcode=2015A&A...574A..50J
+ | doi=10.1051/0004-6361/201424474 | s2cid=53666931 | postscript=. }}</ref>
+<ref name=Guetter1984>{{citation
+ | last1=Guetter | first1=H. H. | last2=Hewitt | first2=A. V.
+ | title=Photoelectric UBV photometry for 317 PZT and VZT stars
+ | journal=Astronomical Society of the Pacific
+ | volume=96 | pages=441–443 | date=1984 | postscript=.
+ | bibcode=1984PASP...96..441G | doi=10.1086/131362 | doi-access=free }}</ref>
+<ref name=SIMBAD>{{cite simbad
+ | title=sig03 Cnc
+ | accessdate=2017-06-11 | postscript=. }}</ref>
+}}
+{{Stars of Cancer|state=collapsed}}
+[[Category:G-type giants]]
+[[Category:Horizontal-branch stars]]
 [[Category:Bayer objects|Cancri, Sigma3]]
 [[Category:Cancer (constellation)]]
-[[Category:G-type giants]]
+[[Category:Durchmusterung objects]]
 [[Category:Flamsteed objects|Cancri, 64]]
+[[Category:Henry Draper Catalogue objects|076813]]
 [[Category:Hipparcos objects|044154]]
+[[Category:Bright Star Catalogue objects|3575]]
-{{Giant-star-stub}}

Observation data Epoch J2000.0 Equinox J2000.0 (ICRS)
Constellation	Cancer
Right ascension	08^h 59^m 32.65432^s^[1]
Declination	+32° 25′ 06.8093″^[1]
Apparent magnitude (V)	+5.24^[2]
Characteristics
Spectral type	G9 III^[3]
U−B color index	+0.64^[2]
B−V color index	+0.91^[2]
Astrometry

Radial velocity (R_v)	+20.82±0.21^[4] km/s
Proper motion (μ)	RA: −43.78^[1] mas/yr Dec.: −35.03^[1] mas/yr
Parallax (π)	11.03 ± 0.28 mas^[1]
Distance	296 ± 8 ly (91 ± 2 pc)
Absolute magnitude (M_V)	0.45^[5]

Details^[4]

Mass	2.81±0.11 `M`_☉
Radius	10.32 `R`_☉
Luminosity	72 `L`_☉
Surface gravity (log g)	3.18 cgs
Temperature	5,170±21 K
Metallicity [Fe/H]	−0.03±0.06 dex
Rotational velocity (v sin i)	2.30±0.47 km/s
Age	420±40 Myr

Other designations
σ³ Cnc, 64 Cancri, BD+32° 1821, FK5 1232, HD 76813, HIP 44154, HR 3575, SAO 61177^[6]
Database references
SIMBAD	data