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RA and Dec to equivalent precision
Updating it to current standards. I wasn't too happy with the previous iteration.
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| image ={{Location mark
| image ={{Location mark
| image=Octans IAU.svg | alt= | float=center | width=250
| image=Octans IAU.svg | alt= | float=center | width=250
| label= | position=center
| label= | position=right
| mark=Red circle.svg | mark_width=7 | mark_link=Gamma3 Oct
| mark=Red circle.svg | mark_width=7 | mark_link=Gamma3 Oct
| x%=48 | y%=32
| x%=48 | y%=32
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}}
}}
{{Starbox observe
{{Starbox observe
| epoch = J2000
| epoch = [[J2000.0]] ([[International Celestial Reference System|ICRS]])
| constell = [[Octans]]
| constell = [[Octans]]
| ra = {{RA|00|10|02.1725}}<ref name = GaiaEDR3/>
| ra = {{RA|00|10|02.17249}}<ref name = GaiaDR3/>
| dec = {{DEC|-82|13|26.570}}<ref name = GaiaEDR3/>
| dec = {{DEC|-82|13|26.5695}}<ref name = GaiaDR3/>
| appmag_v = 5.283 ± 0.009<ref name = Tycho2000/>
| appmag_v = 5.28{{±|0.01}}<ref name = Tycho2000/>
}}
}}
{{Starbox character
{{Starbox character
| type = [[Horizontal branch]]<ref name = Gontcharov2008/>
| type = [[Horizontal branch]]<ref name = Laney2011/>
| class = K1/2 III<ref name = Houk1975/>
| class = K1/2 III<ref name = Houk1975/>
| b-v = +1.05<ref name = Johnson1966/>
| b-v = +1.05<ref name = Johnson1966/>
Line 28: Line 28:
}}
}}
{{Starbox astrometry
{{Starbox astrometry
| radial_v = 15 ± 2<ref name = Wilson1953/>
| radial_v = 15{{±|2.8}}<ref name = Gontcharov2006/>
| parallax = 12.3535
| parallax = 12.3535
| p_error = 0.0517
| p_error = 0.0517
| parallax_footnote = <ref name = GaiaEDR3/>
| parallax_footnote = <ref name = GaiaDR3/>
| prop_mo_ra = −22.050<ref name = GaiaEDR3/>
| prop_mo_ra = −22.050
| prop_mo_dec = −20.218<ref name = GaiaEDR3/>
| prop_mo_dec = −20.218
| pm_footnote = <ref name = GaiaDR3/>
| absmag_v = +0.74
| absmag_v = +0.83<ref name = Anderson2012/>
}}
}}
{{Starbox detail
{{Starbox detail
| source = <ref name = Ottoni2022/>
| source = <ref name = Ottoni2022/>
| mass = 2.23 ± 0.09
| mass = 2.23{{±|0.09}}
| radius = 9.94 ± 0.24
| radius = 9.94{{±|0.24}}
| luminosity = 50.5 ± 1.2
| luminosity = 50.5{{±|1.2}}
| temperature = 4,879 ± 51
| temperature = 4,879{{±|51}}
| gravity = 2.78 ± 0.15
| gravity = 2.78{{±|0.15}}
| metal_fe = +0.19 ± 0.04
| metal_fe = +0.19{{±|0.04}}
| rotational_velocity = <1<ref name = DeMederios2014/>
| rotational_velocity = <1<ref name = "De Medeiros2014"/>
| age_myr =
| age_myr =
}}
}}
{{Starbox catalog
{{Starbox catalog
| names = {{odlist|Gould = 1 G. Octantis|HD = 636|B = γ<sup>3</sup> Octantis|CPD = −82°4|FK5 = 3971|GC = 173|HIP = 814|HR = 30|SAO = 258215}}
| names = {{odlist|Gould = 1 G. Octantis<ref name = Gould1879/>|HD = 636|B = γ<sup>3</sup> Octantis|CPD = −82°4|FK5 = 3971|GC = 173|HIP = 814|HR = 30|SAO = 258215}}<ref name = SIMBAD/>
}}
}}
{{Starbox reference
{{Starbox reference
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{{Starbox end}}
{{Starbox end}}


'''Gamma<sup>3</sup> Octantis''', [[Latinization of Greek|Latinized]] from '''γ<sup>3</sup> Octantis''', is a solitary star in the southern [[circumpolar constellation]] [[Octans]]. It has an [[apparent magnitude]] of 5.283,<ref name = Tycho2000/> making it faintly visible to the [[naked eye]] under ideal conditions. The star is situated at a distance of 264<ref name = GaiaEDR3/> [[light years]] but is receding with a heliocentric [[radial velocity]] of {{val|15|ul=km/s}}.<ref name = Wilson1953/>
'''Gamma<sup>3</sup> Octantis''', [[Latinization of Greek|Latinized]] from '''γ<sup>3</sup> Octantis''', is a solitary [[star]]<ref name = Eggleton2008/> located in the southern [[circumpolar constellation]] [[Octans]]. It is faintly visible to the [[naked eye]] as an orange-hued star with an [[apparent magnitude]] of 5.28.<ref name = Tycho2000/> The object is located relatively close at a distance of 264 [[light year]]s but is receding with a heliocentric [[radial velocity]] of {{val|15|ul=km/s}}. At its current distance, Gamma<sup>3</sup> Octantis' brightness is diminished by two tenths of a [[magnitude (astronomy)|magnitude]] due to [[extinction (astronomy)|interstellar dust]]<ref name = Gontcharov2017/> and Eggen (1993) lists it as a member of the [[thick disk|old disk population]].<ref name = Eggen1993/> It has an [[absolute magnitude]] of +0.83.<ref name = Anderson2012/>


Gamma<sup>3</sup> Octantis has a classification of K1/2 III, displaying a blended spectrum of a K1 and K2 [[giant star]] that is on the horizontal branch.<ref name = Gontcharov2008/> At present it has 2.23 times the [[mass of the Sun]] but has expanded to almost 10 times its girth.<ref name = Ottoni2022/> It shines at 50.5 times the [[luminosity of the Sun]] from its enlarged [[photosphere]] at an [[effective temperature]] of 4,879 [[Kelvin|K]], which gives it a yellowish-orange glow.<ref name = Ottoni2022/> Gamma<sup>3</sup> Octantis is metal enriched with an iron abundance 1.55<ref name = Ottoni2022/> times that of the [[Sun]] and spins leisurely with a [[projected rotational velocity]]] less than {{val|1|ul=km/s}}, common for giant stars.<ref name = DeMederios2014/>
Gamma<sup>3</sup> Octantis has a [[stellar classification]] of K1/2 III,<ref name = Houk1975/> indicating that it is an [[stellar evolution|evolved]] [[K-type star]] with the characteristics of a K1 and K2 [[giant star]]. It is a [[red clump]] star that is currently on the [[horizontal branch]],<ref name = Laney2011/> fusing [[helium]] at its core. At present it has 2.23 times the [[mass of the Sun]] but has expanded to almost 10 times its girth.<ref name = Ottoni2022/> It radiates 50.5 times the [[luminosity of the Sun]] from its enlarged [[photosphere]] at an [[effective temperature]] of 4,879 [[Kelvin|K]], which gives it a yellowish-orange glow.<ref name = Ottoni2022/> Gamma<sup>3</sup> Octantis is metal enriched with an iron abundance 1.55<ref name = Ottoni2022/> times that of the [[Sun]] and common for giant stars, spins slowly with a [[projected rotational velocity]] less than {{val|1|ul=km/s}}.<ref name = "De Medeiros2014"/>


==References==
==References==
{{reflist||refs=
{{reflist||refs=


<ref name = GaiaEDR3>{{Cite Gaia EDR3|4630854015089595776}}</ref>
<ref name = GaiaDR3>{{Cite DR3|4630854015089595776}}</ref>


<ref name = Tycho2000>{{cite journal |last1=Høg |first1=E. |last2=Fabricius |first2=C. |last3=Makarov |first3=V. V. |last4=Urban |first4=S. |last5=Corbin |first5=T. |last6=Wycoff |first6=G. |last7=Bastian |first7=U. |last8=Schwekendiek |first8=P. |last9=Wicenec |first9=A. |title=The Tycho-2 catalogue of the 2.5 million brightest stars |journal=Astronomy and Astrophysics |date=March 2000 |volume=355 |pages=L27–L30 |bibcode=2000A&A...355L..27H |issn=0004-6361 }}</ref>
<ref name = Tycho2000>{{cite journal | last1 = Høg | first1 = E. | last2 = Fabricius | first2 = C. | last3 = Makarov | first3 = V. V. | last4 = Urban | first4 = S. | last5 = Corbin | first5 = T. | last6 = Wycoff | first6 = G. | last7 = Bastian | first7 = U. | last8 = Schwekendiek | first8 = P. | last9 = Wicenec | first9 = A. | title = The Tycho-2 catalogue of the 2.5 million brightest stars |journal=Astronomy and Astrophysics | date = March 2000 | volume = 355 | pages = L27–L30 | bibcode = 2000A&A...355L..27H | issn = 0004-6361}}</ref>


<ref name = Gontcharov2006>{{cite journal | last1 = Gontcharov | first1 = G. A. | title = Pulkovo Compilation of Radial Velocities for 35 495 Hipparcos stars in a common system | journal = Astronomy Letters | date = November 2006 | volume = 32 | issue = 11 | pages = 759–771 | issn = 1063-7737 | eissn = 1562-6873 | doi = 10.1134/S1063773706110065 | pmid = | bibcode = 2006AstL...32..759G | arxiv = 1606.08053 | s2cid = 119231169 }}</ref>
<ref name = Houk1975>{{cite book|last1=Houk |first1=N. |last2=Cowley |first2=A. P. |title=University of Michigan Catalogue of two-dimensional spectral types for the HD stars. Volume I. Declinations -90_ to -53_ƒ0. |date=1975 |bibcode=1975mcts.book.....H }}</ref>


<ref name = Johnson1966>{{cite journal |last1=Johnson |first1=H. L. |last2=Mitchell |first2=R. I. |last3=Iriarte |first3=B. |last4=Wisniewski |first4=W. Z. |title=UBVRIJKL Photometry of the Bright Stars |journal=Communications of the Lunar and Planetary Laboratory |date=January 1966 |volume=4 |pages=99–110 |bibcode=1966CoLPL...4...99J}}</ref>
<ref name = Houk1975>{{cite book | last1 = Houk | first1 = N. | last2 = Cowley | first2 = A. P. | title = University of Michigan Catalogue of two-dimensional spectral types for the HD stars. Volume I. Declinations −90° to −53° | year = 1975 | bibcode = 1975mcts.book.....H }}</ref>


<ref name = Anderson2012>{{cite journal | last1 = Anderson | first1 = E. | last2 = Francis | first2 = Ch. | title = XHIP: An extended hipparcos compilation | journal = Astronomy Letters | date = May 2012 | volume = 38 | issue = 5 | pages = 331–346 | issn = 1063-7737 | eissn = 1562-6873 | doi = 10.1134/S1063773712050015 | bibcode = 2012AstL...38..331A | arxiv = 1108.4971| s2cid = 119257644 }}</ref>
<ref name = Wilson1953>{{Cite journal|last=Wilson|first=Ralph Elmer|date=1953|title=General catalogue of stellar radial velocities.|journal=Carnegie Institute Washington D.C. Publication|bibcode=1953GCRV..C......0W}}</ref>


<ref name = Johnson1966>{{cite journal | last1 = Johnson | first1 = H. L. | last2 = Mitchell | first2 = R. I. | last3 = Iriarte | first3 = B. | last4 = Wisniewski | first4 = W. Z. | title = UBVRIJKL Photometry of the Bright Stars | journal = Communications of the Lunar and Planetary Laboratory | year = 1966 | volume = 4 | pages = 99–110 | bibcode = 1966CoLPL...4...99J}}</ref>
<ref name = Ottoni2022>{{cite journal |last1=Ottoni |first1=G. |last2=Udry |first2=S. |last3=Ségransan |first3=D. |last4=Buldgen |first4=G. |last5=Lovis |first5=C. |last6=Eggenberger |first6=P. |last7=Pezzotti |first7=C. |last8=Adibekyan |first8=V. |last9=Marmier |first9=M. |last10=Mayor |first10=M. |last11=Santos |first11=N. C. |last12=Sousa |first12=S. G. |last13=Lagarde |first13=N. |last14=Charbonnel |first14=C. |title=CORALIE radial-velocity search for companions around evolved stars (CASCADES): I. Sample definition and first results: Three new planets orbiting giant stars, |journal=Astronomy & Astrophysics |date=January 2022 |volume=657 |pages=A87 |doi=10.1051/0004-6361/202040078 |issn=0004-6361 |bibcode=2022A&A...657A..87O |arxiv=2201.01528 |doi-access=free}}</ref>


<ref name = DeMederios2014>{{cite journal |last1=De Medeiros |first1=J. R. |last2=Alves |first2=S. |last3=Udry |first3=S. |last4=Andersen |first4=J. |last5=Nordström |first5=B. |last6=Mayor |first6=M. |title=A catalog of rotational and radial velocities for evolved stars: V. Southern stars⋆⋆⋆ |journal=Astronomy & Astrophysics |date=January 2014 |volume=561 |pages=A126 |doi=10.1051/0004-6361/201220762 |issn=0004-6361 |bibcode=2014A&A...561A.126D |arxiv=1312.3474|doi-access=free}}</ref>
<ref name = Ottoni2022>{{cite journal | last1 = Ottoni | first1 = G. | last2 = Udry | first2 = S. | last3 = Ségransan | first3 = D. | last4 = Buldgen | first4 = G. | last5 = Lovis | first5 = C. | last6 = Eggenberger | first6 = P. | last7 = Pezzotti | first7 = C. | last8 = Adibekyan | first8 = V. | last9 = Marmier | first9 = M. | last10 = Mayor | first10 = M. | last11 = Santos | first11 = N. C. | last12 = Sousa | first12 = S. G. | last13 = Lagarde | first13 = N. | last14 = Charbonnel | first14 = C. | title = CORALIE radial-velocity search for companions around evolved stars (CASCADES): I. Sample definition and first results: Three new planets orbiting giant stars | journal = Astronomy & Astrophysics | date = January 2022 | volume = 657 | pages = A87 | doi = 10.1051/0004-6361/202040078 | issn = 0004-6361 | eissn = 1432-0746 | bibcode = 2022A&A...657A..87O | arxiv = 2201.01528 | doi-access = free}}</ref>


<ref name = Gontcharov2008>{{cite journal |last1=Gontcharov |first1=G. A. |title=Red giant clump in the Tycho-2 catalogue |journal=Astronomy Letters |date=November 2008 |volume=34 |issue=11 |pages=785–796 |doi=10.1134/S1063773708110078 |issn=0004-6299 |bibcode=2008AstL...34..785G |arxiv=1607.00619}}</ref>
<ref name = "De Medeiros2014">{{cite journal | last1 = De Medeiros | first1 = J. R. | last2 = Alves | first2 = S. | last3 = Udry | first3 = S. | last4 = Andersen | first4 = J. | last5 = Nordström | first5 = B. | last6 = Mayor | first6 = M. | title = A catalog of rotational and radial velocities for evolved stars V: Southern Stars⋆⋆⋆ | journal = Astronomy & Astrophysics | date = January 2014 | volume = 561 | page = A126 | issn = 0004-6361 | eissn = 1432-0746 | doi = 10.1051/0004-6361/201220762 | bibcode = 2014A&A...561A.126D | arxiv = 1312.3474 | doi-access = free}}</ref>

<ref name = Laney2011>{{cite journal | last1 = Laney | first1 = C. D. | last2 = Joner | first2 = M. D. | last3 = Pietrzyński | first3 = G. | title = A new Large Magellanic Cloud K-band distance from precision measurements of nearby red clump stars | journal = Monthly Notices of the Royal Astronomical Society | date = 11 November 2011 | volume = 419 | issue = 2 | pages = 1637–1641 | issn = 0035-8711 | doi = 10.1111/j.1365-2966.2011.19826.x | bibcode = 2012MNRAS.419.1637L | arxiv = 1109.4800 | doi-access = free }}</ref>

<ref name = SIMBAD>{{Cite simbad|title = gam03 Octantis|access-date = 21 February 2022}}</ref>

<ref name = Gould1879>{{cite journal | last = Gould | first = Benjamin Apthorp | title = Uranometria Argentina : brillantez y posicion de las estrellas fijas, hasta la septima magnitud, comprendidas dentro de cien grados del polo austral : con atlas | journal = Resultados del Observatorio Nacional Argentino | volume = 1 | bibcode = 1879RNAO....1.....G | year = 1878}}</ref>

<ref name = Gontcharov2017>{{cite journal | last1 = Gontcharov | first1 = George A. | last2 = Mosenkov | first2 = Aleksandr V. | title = Verifying reddening and extinction for Gaia DR1 TGAS main sequence stars | journal = Monthly Notices of the Royal Astronomical Society | date = 28 September 2017 | volume = 472 | issue = 4 | pages = 3805–3820 | issn = 0035-8711 | eissn = 1365-2966 | doi = 10.1093/mnras/stx2219 | bibcode = 2017MNRAS.472.3805G | arxiv = 1709.01160 | doi-access = free}}</ref>

<ref name = Eggen1993>{{cite journal |last1=Eggen |first1=O. J. |title=Evolved GK stars near the sun. I - The old disk population |journal=The Astronomical Journal |date=July 1993 |volume=106 |pages=80 |doi=10.1086/116622 |bibcode=1993AJ....106...80E|doi-access = free}}</ref>

<ref name = Eggleton2008>{{cite journal | 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 | date = 11 September 2008 | volume = 389 | issue = 2 | pages = 869–879 | issn = 0035-8711 | eissn = 1365-2966 | doi = 10.1111/j.1365-2966.2008.13596.x | bibcode = 2008MNRAS.389..869E | arxiv = 0806.2878 | s2cid = 14878976 | doi-access = free }}</ref>


}}
}}

Revision as of 02:38, 11 January 2023

For other stars with this Bayer designation, see γ Octantis.
γ3 Octantis
Location of γ3 Octantis (circled)
Observation data
Epoch J2000.0      Equinox J2000.0 (ICRS)
Constellation Octans
Right ascension 00h 10m 02.17249s[1]
Declination −82° 13′ 26.5695″[1]
Apparent magnitude (V) 5.28±0.01[2]
Characteristics
Evolutionary stage Horizontal branch[3]
Spectral type K1/2 III[4]
U−B color index +0.92[5]
B−V color index +1.05[5]
Astrometry
Radial velocity (Rv)15±2.8[6] km/s
Proper motion (μ) RA: −22.050 mas/yr[1]
Dec.: −20.218 mas/yr[1]
Parallax (π)12.3535 ± 0.0517 mas[1]
Distance264 ± 1 ly
(80.9 ± 0.3 pc)
Absolute magnitude (MV)+0.83[7]
Details[8]
Mass2.23±0.09 M☉
Radius9.94±0.24 R☉
Luminosity50.5±1.2 L☉
Surface gravity (log g)2.78±0.15 cgs
Temperature4,879±51 K
Metallicity [Fe/H]+0.19±0.04 dex
Rotational velocity (v sin i)<1[9] km/s
Other designations
γ3 Octantis, 1 G. Octantis[10], CPD−82°4, FK5 3971, GC 173, HD 636, HIP 814, HR 30, SAO 258215[11]
Database references
SIMBADdata

Gamma3 Octantis, Latinized from γ3 Octantis, is a solitary star[12] located in the southern circumpolar constellation Octans. It is faintly visible to the naked eye as an orange-hued star with an apparent magnitude of 5.28.[2] The object is located relatively close at a distance of 264 light years but is receding with a heliocentric radial velocity of 15 km/s. At its current distance, Gamma3 Octantis' brightness is diminished by two tenths of a magnitude due to interstellar dust[13] and Eggen (1993) lists it as a member of the old disk population.[14] It has an absolute magnitude of +0.83.[7]

Gamma3 Octantis has a stellar classification of K1/2 III,[4] indicating that it is an evolved K-type star with the characteristics of a K1 and K2 giant star. It is a red clump star that is currently on the horizontal branch,[3] fusing helium at its core. At present it has 2.23 times the mass of the Sun but has expanded to almost 10 times its girth.[8] It radiates 50.5 times the luminosity of the Sun from its enlarged photosphere at an effective temperature of 4,879 K, which gives it a yellowish-orange glow.[8] Gamma3 Octantis is metal enriched with an iron abundance 1.55[8] times that of the Sun and common for giant stars, spins slowly with a projected rotational velocity less than 1 km/s.[9]

References

  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 Høg, E.; Fabricius, C.; Makarov, V. V.; Urban, S.; Corbin, T.; Wycoff, G.; Bastian, U.; Schwekendiek, P.; Wicenec, A. (March 2000). "The Tycho-2 catalogue of the 2.5 million brightest stars". Astronomy and Astrophysics. 355: L27–L30. Bibcode:2000A&A...355L..27H. ISSN 0004-6361.
  3. ^ a b Laney, C. D.; Joner, M. D.; Pietrzyński, G. (11 November 2011). "A new Large Magellanic Cloud K-band distance from precision measurements of nearby red clump stars". Monthly Notices of the Royal Astronomical Society. 419 (2): 1637–1641. arXiv:1109.4800. Bibcode:2012MNRAS.419.1637L. doi:10.1111/j.1365-2966.2011.19826.x. ISSN 0035-8711.
  4. ^ a b Houk, N.; Cowley, A. P. (1975). University of Michigan Catalogue of two-dimensional spectral types for the HD stars. Volume I. Declinations −90° to −53°. Bibcode:1975mcts.book.....H.
  5. ^ a b Johnson, H. L.; Mitchell, R. I.; Iriarte, B.; Wisniewski, W. Z. (1966). "UBVRIJKL Photometry of the Bright Stars". Communications of the Lunar and Planetary Laboratory. 4: 99–110. Bibcode:1966CoLPL...4...99J.
  6. ^ Gontcharov, G. A. (November 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. eISSN 1562-6873. ISSN 1063-7737. S2CID 119231169.
  7. ^ a b Anderson, E.; Francis, Ch. (May 2012). "XHIP: An extended hipparcos compilation". Astronomy Letters. 38 (5): 331–346. arXiv:1108.4971. Bibcode:2012AstL...38..331A. doi:10.1134/S1063773712050015. eISSN 1562-6873. ISSN 1063-7737. S2CID 119257644.
  8. ^ a b c d Ottoni, G.; Udry, S.; Ségransan, D.; Buldgen, G.; Lovis, C.; Eggenberger, P.; Pezzotti, C.; Adibekyan, V.; Marmier, M.; Mayor, M.; Santos, N. C.; Sousa, S. G.; Lagarde, N.; Charbonnel, C. (January 2022). "CORALIE radial-velocity search for companions around evolved stars (CASCADES): I. Sample definition and first results: Three new planets orbiting giant stars". Astronomy & Astrophysics. 657: A87. arXiv:2201.01528. Bibcode:2022A&A...657A..87O. doi:10.1051/0004-6361/202040078. eISSN 1432-0746. ISSN 0004-6361.
  9. ^ a b De Medeiros, J. R.; Alves, S.; Udry, S.; Andersen, J.; Nordström, B.; Mayor, M. (January 2014). "A catalog of rotational and radial velocities for evolved stars V: Southern Stars⋆⋆⋆". Astronomy & Astrophysics. 561: A126. arXiv:1312.3474. Bibcode:2014A&A...561A.126D. doi:10.1051/0004-6361/201220762. eISSN 1432-0746. ISSN 0004-6361.
  10. ^ Gould, Benjamin Apthorp (1878). "Uranometria Argentina : brillantez y posicion de las estrellas fijas, hasta la septima magnitud, comprendidas dentro de cien grados del polo austral : con atlas". Resultados del Observatorio Nacional Argentino. 1. Bibcode:1879RNAO....1.....G.
  11. ^ "gam03 Octantis". SIMBAD. Centre de données astronomiques de Strasbourg. Retrieved 21 February 2022.
  12. ^ Eggleton, P. P.; Tokovinin, A. A. (11 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. eISSN 1365-2966. ISSN 0035-8711. S2CID 14878976.
  13. ^ Gontcharov, George A.; Mosenkov, Aleksandr V. (28 September 2017). "Verifying reddening and extinction for Gaia DR1 TGAS main sequence stars". Monthly Notices of the Royal Astronomical Society. 472 (4): 3805–3820. arXiv:1709.01160. Bibcode:2017MNRAS.472.3805G. doi:10.1093/mnras/stx2219. eISSN 1365-2966. ISSN 0035-8711.
  14. ^ Eggen, O. J. (July 1993). "Evolved GK stars near the sun. I - The old disk population". The Astronomical Journal. 106: 80. Bibcode:1993AJ....106...80E. doi:10.1086/116622.
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