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{{Short description|Star in the constellation Lacerta}}
{{starbox short
⚫
{{Starbox begin
⚫
|constell= [[Lacerta (constellation)|Lacerta]]
|name= 10 Lacertae
|name= 10 Lacertae
⚫
}}
⚫
{{Starbox image|
{{Starbox image
image=[[File:10 Lacertae Celestia.jpg|250px]] |
| image=
caption=10 Lacertae in Celestia}}
{{Location mark
|type= O9V <ref name=SIMBAD/>
⚫
|image=Lacerta constellation map.svg
⚫
|ra= {{RA|22|39|15.67864}} <ref name=SIMBAD/>
|float=center
⚫
|dec= {{DEC|+39|03|00.9712}} <ref name=SIMBAD/>
|alt=
⚫
{{starbox detail
|mass = ?
|label=
|position=right
|radius = ?
|width=260
|luminosity = ?
|mark=Red circle.svg
|temperature = ~30,000
|mark_width=10
⚫
}}
|mark_link=10 Lacertae
⚫
'''10 Lacertae''' ('''10 Lac''') is a [[star]] in the [[constellation]] [[Lacerta (constellation)|Lacerta]]. Its [[apparent magnitude]] is 4.88. Located around {{convert|529|pc|ly}} distant, it is a hot [[O-type main-sequence star|blue main-sequence star]] of spectral type O9V,<ref name=SIMBAD>{{cite web |url =http://simbad.u-strasbg.fr/simbad/sim-id?Ident=10+lac&NbIdent=1&Radius=2&Radius.unit=arcmin&submit=submit+id |title = 10 Lacertae|work = SIMBAD Astronomical Database|publisher=Centre de Données astronomiques de Strasbourg |accessdate = 6 January 2014}}</ref> a massive star that is currently fusing its core [[hydrogen]]. 10 Lacertae was one of the first O-type stars (along with [[S Monocerotis]]) to be defined as an anchor point for the [[Stellar classification#Yerkes spectral classification|MKK spectral classification]]; since the early twentieth century it has served as such a point. Specifically, the star is representative of O9V stars, meaning relatively cool O-type stars on the main-sequence.<ref name="Garrison">{{cite journal |last1=Garrison |first1=R. F. |title=A Hierarchy of Standards for the MK Process |journal=[[Astronomical Society of the Pacific]] |year=1994 |bibcode=1994ASPC...60....3G |url=http://adsabs.harvard.edu/abs/1994ASPC...60....3G}}</ref>
|x=422|y=993
}}
|caption=Location of 10 Lac (circled)
}}
{{Starbox observe
| epoch = [[J2000]]
|constell= [[Lacerta]]
⚫
|ra= {{RA|22|39|15.67804}}<ref name=DR3/>
⚫
|dec= {{DEC|+39|03|00.9724}}<ref name=DR3/>
|appmag_v=4.880<ref name=ubv>{{cite journal | last1=Oja | first1=T. | title=UBV photometry of stars whose positions are accurately known. VII | journal=Astronomy and Astrophysics Supplement Series | issn=0365-0138 | volume=100 | number=3 | pages=591–592 | date=September 1993 | bibcode=1993A&AS..100..591O }}</ref>
}}
{{Starbox character
| class = O9V<ref name=gosss>{{cite journal|bibcode=2011ApJS..193...24S
|title=The Galactic O-Star Spectroscopic Survey. I. Classification System and Bright Northern Stars in the Blue-violet at R ~ 2500|journal=The Astrophysical Journal Supplement|volume=193|issue=3|pages=24|author1=Sota, A.|author2=Maíz Apellániz, J.|author3=Walborn, N. R.|author4=Alfaro, E. J.|author5=Barbá, R. H.|author6=Morrell, N. I.|author-link6=Nidia Morrell|author7=Gamen, R. C.|author8=Arias, J. I.|arxiv = 1101.4002 |doi = 10.1088/0067-0049/193/2/24 |year=2011|s2cid=119248206}}</ref>
| b-v = &minus;0.210<ref name=ubv/>
| u-b = &minus;1.010<ref name=ubv/>
| variable = [[Beta Cephei variable|β Cep]]?<ref name=gcvs>{{cite journal|bibcode=2009yCat....102025S|date=January 2009|title=VizieR On-line Data Catalog: General Catalogue of Variable Stars|journal=VizieR On-line Data Catalog|author1=Samus, N. N.|author2=Durlevich, O. V.}}</ref>
}}
{{Starbox astrometry
| radial_v = &minus;10.10<ref>{{cite journal|bibcode=2006AstL...32..759G|title=Pulkovo Compilation of Radial Velocities for 35 495 Hipparcos stars in a common system|journal=Astronomy Letters|volume=32|issue=11|pages=759–771|last1=Gontcharov|first1=G. A.|year=2006|doi=10.1134/S1063773706110065|arxiv = 1606.08053 |s2cid=119231169}}</ref>
| prop_mo_ra = {{val|-1.274}}
| prop_mo_dec = {{val|-5.605}}
| pm_footnote = <ref name=DR3/>
| parallax = 2.192
| p_error = 0.131
| parallax_footnote = <ref name=DR3>{{cite DR3|1908095850396090880}}</ref>
| dist_pc = {{val|552|32}}
| dist_ly = {{val|1800|103|fmt=commas}}
| dist_footnote = <ref name=quantitative/>
| absmag_v = {{val|-4.17|0.12}}<ref name=quantitative/>
}}
⚫
{{Starbox detail
| source = <ref name=quantitative>{{Cite journal |last1=Aschenbrenner |first1=P. |last2=Przybilla |first2=N. |last3=Butler |first3=K. |date=2023-03-01 |title=Quantitative spectroscopy of late O-type main-sequence stars with a hybrid non-LTE method |bibcode=2023A&A...671A..36A |arxiv=2301.09462 |journal=Astronomy and Astrophysics |volume=671 |pages=A36 |doi=10.1051/0004-6361/202244906 |issn=0004-6361}}</ref>
| mass = {{val|21.6|0.5}}
| radius = {{val|7.4|0.5}}
| luminosity = {{val|69200|8440|7520|fmt=commas}}
| temperature = {{val|34550|300|fmt=commas}}
| gravity = {{val|4.04|0.05}}
| metal_fe =
| rotational_velocity = {{val|14|1}}
| age_myr = {{val|3.55|0.72|0.60}}<ref name=quantitative/>
}}
{{Starbox catalog
| names = [[Flamsteed designation|10]]&nbsp;Lac, [[Harvard Revised catalogue|HR]]&nbsp;8622, [[Bonner Durchmusterung|BD]]+38°4826, [[Henry Draper catalogue|HD]]&nbsp;214680, [[Smithsonian Astrophysical Observatory Star Catalog|SAO]]&nbsp;72575, [[Hipparcos catalogue|HIP]]&nbsp;111841, [[Catalog of Suspected Variables|NSV]]&nbsp;25932, [[Washington Double Star Catalog|WDS]]&nbsp;J22393+3903
}}
{{Starbox reference
| Simbad=10+Lacertae
}}
{{Starbox end}}

'''10 Lacertae''' ('''10 Lac''') is a [[star]] in the [[constellation]] [[Lacerta (constellation)|Lacerta]]. With an [[apparent magnitude]] of 4.9, it is located around {{convert|550|pc|ly}} distant in the small Lacerta OB1 [[Stellar association|association]]. It is a hot [[O-type main-sequence star|blue main-sequence star]] of spectral type O9V, a massive star that is currently fusing its core [[hydrogen]]. It is a suspected [[Beta Cephei variable]] star.

⚫
It was one of the first O-type stars (along with [[S Monocerotis]]) to be defined as an anchor point for the [[Stellar classification#Yerkes spectral classification|MKK spectral classification]]; since the early twentieth century it has served as such a point. Specifically, the star is representative of O9V stars, meaning relatively cool O-type stars on the main-sequence.<ref name="Garrison">{{cite journal |last1=Garrison |first1=R. F. |title=A Hierarchy of Standards for the MK Process |journal=[[Astronomical Society of the Pacific]] |volume=60 |pages=3 |year=1994 |bibcode=1994ASPC...60....3G}}</ref>

It is the star with the smallest [[angular diameter]] measured by the [[CHARA array]], at {{Val|0.11|0.02|u=[[milliarcsecond]]s}}.<ref>{{Cite journal |last1=Gordon |first1=Kathryn D. |last2=Gies |first2=Douglas R. |last3=Schaefer |first3=Gail H. |last4=Huber |first4=Daniel |last5=Ireland |first5=Michael |last6=Hillier |first6=D. John |date=December 2018 |title=Angular Sizes and Effective Temperatures of O-type Stars from Optical Interferometry with the CHARA Array |journal=The Astrophysical Journal |language=en |volume=869 |issue=1 |pages=37 |doi=10.3847/1538-4357/aaec04 |doi-access=free |arxiv=1812.05511 |bibcode=2018ApJ...869...37G |issn=0004-637X}}</ref>

10 Lacertae has an 8th magnitude companion about one arc-minute away.<ref>{{cite journal|bibcode=1994CoORB.115.....D|author1=Dommanget, J.|author2=Nys, O.|title=Catalogue of the Components of Double and Multiple stars (CCDM). First edition.|journal=Communications de l'Observatoire Royal de Belgique|volume=115|date=1994}}</ref>


==References==
==References==
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{{Stars of Lacerta}}
{{Stars of Lacerta}}


{{DEFAULTSORT:10 Lacertae}}
[[Category:Lacerta (constellation)]]
[[Category:Lacerta]]
[[Category:O-type main-sequence stars]]
[[Category:O-type main-sequence stars]]
[[Category:Flamsteed objects|Lacertae, 10]]
[[Category:Flamsteed objects|Lacertae, 10]]
[[Category:Bright Star Catalogue objects|8622]]

[[Category:Hipparcos objects|111841]]

[[Category:Henry Draper Catalogue objects|214680]]
{{main-star-stub}}
[[Category:Durchmusterung objects|BD+38 4826]]

Latest revision as of 23:40, 3 September 2024

10 Lacertae
Location of 10 Lac (circled)
Observation data
Epoch J2000      Equinox J2000
Constellation Lacerta
Right ascension 22h 39m 15.67804s[1]
Declination +39° 03′ 00.9724″[1]
Apparent magnitude (V) 4.880[2]
Characteristics
Spectral type O9V[3]
U−B color index −1.010[2]
B−V color index −0.210[2]
Variable type β Cep?[4]
Astrometry
Radial velocity (Rv)−10.10[5] km/s
Proper motion (μ) RA: −1.274 mas/yr[1]
Dec.: −5.605 mas/yr[1]
Parallax (π)2.192 ± 0.131 mas[1]
Distance1,800±103 ly
(552±32 pc)[6]
Absolute magnitude (MV)−4.17±0.12[6]
Details[6]
Mass21.6±0.5 M☉
Radius7.4±0.5 R☉
Luminosity69,200+8,440
−7,520 L☉
Surface gravity (log g)4.04±0.05 cgs
Temperature34,550±300 K
Rotational velocity (v sin i)14±1 km/s
Age3.55+0.72
−0.60[6] Myr
Other designations
10 Lac, HR 8622, BD+38°4826, HD 214680, SAO 72575, HIP 111841, NSV 25932, WDS J22393+3903
Database references
SIMBADdata

10 Lacertae (10 Lac) is a star in the constellation Lacerta. With an apparent magnitude of 4.9, it is located around 550 parsecs (1,800 ly) distant in the small Lacerta OB1 association. It is a hot blue main-sequence star of spectral type O9V, a massive star that is currently fusing its core hydrogen. It is a suspected Beta Cephei variable star.

It was one of the first O-type stars (along with S Monocerotis) to be defined as an anchor point for the MKK spectral classification; since the early twentieth century it has served as such a point. Specifically, the star is representative of O9V stars, meaning relatively cool O-type stars on the main-sequence.[7]

It is the star with the smallest angular diameter measured by the CHARA array, at 0.11±0.02 milliarcseconds.[8]

10 Lacertae has an 8th magnitude companion about one arc-minute away.[9]

References

[edit]
  1. ^ a b c d Vallenari, A.; et al. (Gaia collaboration) (2023). "Gaia Data Release 3. Summary of the content and survey properties". Astronomy and Astrophysics. 674: A1. arXiv:2208.00211. Bibcode:2023A&A...674A...1G. doi:10.1051/0004-6361/202243940. S2CID 244398875. Gaia DR3 record for this source at VizieR.
  2. ^ a b c Oja, T. (September 1993). "UBV photometry of stars whose positions are accurately known. VII". Astronomy and Astrophysics Supplement Series. 100 (3): 591–592. Bibcode:1993A&AS..100..591O. ISSN 0365-0138.
  3. ^ Sota, A.; Maíz Apellániz, J.; Walborn, N. R.; Alfaro, E. J.; Barbá, R. H.; Morrell, N. I.; Gamen, R. C.; Arias, J. I. (2011). "The Galactic O-Star Spectroscopic Survey. I. Classification System and Bright Northern Stars in the Blue-violet at R ~ 2500". The Astrophysical Journal Supplement. 193 (3): 24. arXiv:1101.4002. Bibcode:2011ApJS..193...24S. doi:10.1088/0067-0049/193/2/24. S2CID 119248206.
  4. ^ Samus, N. N.; Durlevich, O. V. (January 2009). "VizieR On-line Data Catalog: General Catalogue of Variable Stars". VizieR On-line Data Catalog. Bibcode:2009yCat....102025S.
  5. ^ Gontcharov, G. A. (2006). "Pulkovo Compilation of Radial Velocities for 35 495 Hipparcos stars in a common system". Astronomy Letters. 32 (11): 759–771. arXiv:1606.08053. Bibcode:2006AstL...32..759G. doi:10.1134/S1063773706110065. S2CID 119231169.
  6. ^ a b c d Aschenbrenner, P.; Przybilla, N.; Butler, K. (2023-03-01). "Quantitative spectroscopy of late O-type main-sequence stars with a hybrid non-LTE method". Astronomy and Astrophysics. 671: A36. arXiv:2301.09462. Bibcode:2023A&A...671A..36A. doi:10.1051/0004-6361/202244906. ISSN 0004-6361.
  7. ^ Garrison, R. F. (1994). "A Hierarchy of Standards for the MK Process". Astronomical Society of the Pacific. 60: 3. Bibcode:1994ASPC...60....3G.
  8. ^ Gordon, Kathryn D.; Gies, Douglas R.; Schaefer, Gail H.; Huber, Daniel; Ireland, Michael; Hillier, D. John (December 2018). "Angular Sizes and Effective Temperatures of O-type Stars from Optical Interferometry with the CHARA Array". The Astrophysical Journal. 869 (1): 37. arXiv:1812.05511. Bibcode:2018ApJ...869...37G. doi:10.3847/1538-4357/aaec04. ISSN 0004-637X.
  9. ^ Dommanget, J.; Nys, O. (1994). "Catalogue of the Components of Double and Multiple stars (CCDM). First edition". Communications de l'Observatoire Royal de Belgique. 115. Bibcode:1994CoORB.115.....D.
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