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{{Short description|Star in the constellation Camelopardalis}}
{{Short description|Star in the constellation Camelopardalis}}
{{Starbox begin
{{Starbox begin
| name=HD 27245
| name = [[Henry Draper Catalogue|HD]] 27245
}}
}}
{{Starbox observe
{{Starbox observe
| epoch = [[J2000.0]] ([[International Celestial Reference System|ICRS]])
| epoch=J2000
| ra={{RA|04|21|47.6492}}<ref name = EDR3/>
| ra = {{RA|04|21|47.64917}}<ref name = EDR3/>
| dec={{DEC|+60|44|08.2461}}<ref name = EDR3/>
| dec = {{DEC|+60|44|08.2461}}<ref name = EDR3/>
| appmag_v= 5.52<ref name=aaa430_165/>
| appmag_v= 5.40{{±|0.01}}<ref name = Tycho2000/>
| constell=[[Camelopardalis (constellation)|Camelopardalis]]
| constell = [[Camelopardalis]]
}}
}}
{{Starbox character
{{Starbox character
| class=M0&nbsp;III<ref name=Appenzeller1967/>
| class=M0 III<ref name = Appenzeller1967/>
⚫
| b-v = +1.50<ref name = Haggkvist1970/>
| r-i =
⚫
| variable = suspected<ref name = Samus2017/>
| v-r =
⚫
| b-v = +1.50<ref name="MERMILLIOD"/>
| u-b = +1.81<ref name="MERMILLIOD"/>
⚫
| variable = suspected<ref name = SamCat2004/>
}}
}}
{{Starbox astrometry
{{Starbox astrometry
| radial_v = {{Val|+25.16|0.27}}<ref name=deBruijne2012/>
| radial_v = +25.2{{±|0.3}}<ref name = Famaey2005/>
| prop_mo_ra = +55.890<ref name = EDR3/>
| prop_mo_ra = +55.890
| prop_mo_dec = −114.046<ref name = EDR3/>
| prop_mo_dec = −114.046
| pm_footnote = <ref name = EDR3/>
| parallax = 5.3716
| parallax = 5.3716
| p_error = 0.0848
| p_error = 0.0848
| parallax_footnote = <ref name = EDR3/>
| parallax_footnote = <ref name = EDR3/>
| absmag_v=−0.40<ref name=aaa430_165/>
| absmag_v = −0.27<ref name = Anderson2012/>
}}
}}
{{Starbox detail
{{Starbox detail
| mass = 1.08<ref name = Anders2019/>
| mass = 1.08<ref name = Anders2019/>
| radius= 36.11<ref name = McDonald2017/>
| radius = 52.8{{±|2.7}}<ref name = Kervella2004/>
| luminosity = 273<ref name = McDonald2017/>
| luminosity = 570{{±|16}}<ref name = GaiaDR2/>
| temperature = 3,921<ref name = McDonald2017/>
| temperature = 4,033{{±|122}}<ref name = Stassun2019/>
| metal_fe = +0.11<ref name = Anders2019/>
| metal_fe = +0.11<ref name = Anders2019/>
| gravity = 1.29<ref name = McDonald2017/>
| gravity = 1.29<ref name = McDonald2017/>
Line 38: Line 36:
}}
}}
{{Starbox catalog
{{Starbox catalog
| names={{odlist | NSV=1558 | BD=+60° 800 | FK5= 2317 | HD=27245 | HIP=20376 | HR=1335 | SAO=13113 }}<ref name=SIMBAD/>
| names = [[Johann Hevelius|25 H. Camelopardalis]],<ref name = Verbunt2010/> {{odlist|HD = 27245|AG = +60°426|BD = +60°800|FK5 = 2317|GC = 5244|HIP = 20736|HR = 1335|SAO = 13113|NSV = 1558|}}<ref name=SIMBAD/>
}}
}}
{{Starbox reference
{{Starbox reference
Line 45: Line 43:
}}
}}
{{Starbox end}}
{{Starbox end}}
'''HD 27245''' is a solitary<ref name = Eggelton2008/> [[star]] in the northern [[circumpolar constellation]] [[Camelopardalis]]. It has an [[apparent magnitude]] of 5.52,<ref name=aaa430_165/> making it faintly visible to the [[naked eye]]. [[Parallax]] measurements place it approximately 607 [[light year]]s<ref name = EDR3/> away from it the [[Solar System]]; it is drifting further away with a heliocentric [[radial velocity]] of {{val|25.16|ul=km/s}}.<ref name=deBruijne2012/>
'''HD 27245''', also known as '''HR 1335''' or rarely '''25 H. Camelopardalis''' is a solitary red-hued [[star]]<ref name = Eggleton2008/> located in the northern [[circumpolar constellation]] [[Camelopardalis]]. It has an [[apparent magnitude]] of 5.4,<ref name = Tycho2000/> making it faintly visible to the [[naked eye]]. [[Gaia DR3]] [[Parallax]] measurements place it approximately 607 [[light year]]s<ref name = EDR3/> away from it the [[Solar System]] and is drifting further away with a heliocentric [[radial velocity]] of {{val|25.2|ul=km/s}}.<ref name = Famaey2005/> At its current distance, HD 27245's brightness is diminished by 0.36 [[magnitude (astronomy)|magnitude]]s due to [[extinction (astronomy)|extinction]] from interstellar dust. It has an [[absolute magnitude]] of −0.27.<ref name = Anderson2012/>


HD 27245 is an aging [[red giant]] with a [[stellar classification]] of M0 III. At present it has 108% the [[mass of the Sun]]<ref name = Anders2019/> and an enlarged radius of {{solar radius|36.11|link=y}}.<ref name = McDonald2017/> It shines at 273 times the [[luminosity of the Sun]] from its [[photosphere]] at an [[effective temperature]] of {{val|3,921|fmt=commas|ul=K}},<ref name = McDonald2017/> giving it a red glow. HD 27245's [[iron]] abundance is 129% that of the [[Sun]].<ref name = Anders2019/>
HD 27245 is an aging [[red giant]] with a [[stellar classification]] of M0 III.<ref name = Appenzeller1967/> It has 108% the [[mass of the Sun]]<ref name = Anders2019/> but has expanded to a radius of {{solar radius|52.8|link=y}}.<ref name = McDonald2017/> It radiates 570 times the [[luminosity of the Sun]]<ref name = GaiaDR2/> from its enlarged [[photosphere]] at an [[effective temperature]] of {{val|4033|fmt=commas|ul=K}}.<ref name = Stassun2019/> HD 27245's [[iron]] abundance is 129% that of the [[Sun]]'s,<ref name = Anders2019/> making it metal enriched.


HD 27245 is a suspected [[variable star]] with an amplitude of 0.05 magnitudes.<ref name = Samus2017/> Its variability was first observed in 1930 by [[Joel Stebbins]].<ref name = Stebbins1930/> However, Eggen (1967) instead lists it as an ordinary M-type giant and used the object for comparison.<ref name = Eggen1967/> In 1978-9, 8 LMi was again listed as a variable star but did not provide further insight.<ref name = Pyl'skaja1978/> As of 2017, the star has not been confirmed to be variable.<ref name = Samus2017/>
HD 27245 is a suspected [[variable star]] that fluctuates by 0.05 [[magnitude (astronomy)|magnitudes]].<ref name = SamCat2004/>


==References==
==References==
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<ref name = EDR3>{{Cite Gaia EDR3|472182524070291072}}</ref>
<ref name = EDR3>{{Cite Gaia EDR3|472182524070291072}}</ref>


<ref name=deBruijne2012>{{cite journal
<ref name = GaiaDR2>{{Cite DR2|472182524070291072}}</ref>
| last1=de Bruijne | first1=J. H. J. | last2=Eilers | first2=A.-C.
| title=Radial velocities for the HIPPARCOS-Gaia Hundred-Thousand-Proper-Motion project
| journal=Astronomy & Astrophysics
| volume=546 | id=A61 | pages=14 | date=October 2012
| doi=10.1051/0004-6361/201219219 | bibcode=2012A&A...546A..61D
| arxiv=1208.3048 | s2cid=59451347 }}</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=aaa430_165>{{cite journal
| display-authors=1
| last1=Famaey | first1=B.
| last2=Jorissen | first2=A.
| last3=Luri | first3=X.
| last4=Mayor | first4=M.
| last5=Udry | first5=S.
| last6=Dejonghe | first6=H.
| last7=Turon | first7=C.
| title=Local kinematics of K and M giants from CORAVEL/Hipparcos/Tycho-2 data. Revisiting the concept of superclusters
| journal=Astronomy and Astrophysics
| volume=430 | issue=1 | pages=165–186 |date=January 2005
| doi=10.1051/0004-6361:20041272
| bibcode=2005A&A...430..165F
| arxiv=astro-ph/0409579
| s2cid=17804304 }}</ref>


<ref name = Famaey2005>{{cite journal | bibcode = 2005A&A...430..165F | title = Local kinematics of K and M giants from CORAVEL/Hipparcos/Tycho-2 data. Revisiting the concept of superclusters | journal = Astronomy and Astrophysics | volume = 430 | pages = 165 | last1 = Famaey | first1 = B. | last2 = Jorissen | first2 = A. | last3 = Luri | first3 = X. | last4 = Mayor | first4 = M. | last5 = Udry | first5 = S. | last6 = Dejonghe | first6 = H. | last7 = Turon | first7 = C. | date = January 2005 | doi = 10.1051/0004-6361:20041272 | arxiv = astro-ph/0409579 | s2cid = 17804304 | doi-access = free}}</ref>
<ref name=Appenzeller1967>{{cite journal
| last1=Appenzeller | first1=Immo
| title=MK Spectral Types for 185 Bright Stars
| journal=Publications of the Astronomical Society of the Pacific
| volume=79 | issue=467 | page=102
| date=April 1967
| doi=10.1086/128449
| bibcode=1967PASP...79..102A
| doi-access=free
}}</ref>


<ref name = Appenzeller1967>{{cite journal | last1 = Appenzeller | first1 = Immo | title = MK Spectral Types for 185 Bright Stars | journal = Publications of the Astronomical Society of the Pacific | date = April 1967 | volume = 79 | page = 102 | issn = 0004-6280 | eissn = 1538-3873 | doi = 10.1086/128449 | bibcode = 1967PASP...79..102A | doi-access = free}}</ref>
<ref name="MERMILLIOD">{{cite journal
| last1=Mermilliod | first1=J.-C.
| title=Compilation of Eggen's UBV data, transformed to UBV (unpublished)
| journal=Catalogue of Eggen's UBV Data. SIMBAD
| date=1986 | bibcode=1986EgUBV........0M
}}</ref>


<ref name = SamCat2004>{{cite journal |last1=Samus |first1=N. N. |last2=Durlevich |first2=O. V. |title=VizieR Online Data Catalog: Combined General Catalogue of Variable Stars (Samus+ 2004) |journal=VizieR Online Data Catalog |date=November 2004 |pages=II/250 |bibcode=2004yCat.2250....0S}}</ref>
<ref name = Samus2017>{{cite journal | last1 = Samus’ | first1 = N. N. | last2 = Kazarovets | first2 = E. V. | last3 = Durlevich | first3 = O. V. | last4 = Kireeva | first4 = N. N. | last5 = Pastukhova | first5 = E. N. | title = General catalogue of variable stars: Version GCVS 5.1 | journal = Astronomy Reports | date = January 2017 | volume = 61 | issue = 1 | pages = 80–88 | issn = 1063-7729 | eissn = 1562-6881 | doi = 10.1134/S1063772917010085 | bibcode = 2017ARep...61...80S| s2cid = 125853869 }}</ref>


<ref name = Stassun2019>{{cite journal | display-authors = 1 | last1 = Stassun | first1 = Keivan G. | last2 = Oelkers | first2 = Ryan J. | last3 = Paegert | first3 = Martin | last4 = Torres | first4 = Guillermo | last5 = Pepper | first5 = Joshua | last6 = Lee | first6 = Nathan De | last7 = Collins | first7 = Kevin | last8 = Latham | first8 = David W. | last9 = Muirhead | first9 = Philip S. | last10 = Chittidi | first10 = Jay | last11 = Rojas-Ayala | first11 = Bárbara | last12 = Fleming | first12 = Scott W. | last13 = Rose | first13 = Mark E. | last14 = Tenenbaum | first14 = Peter | last15 = Ting | first15 = Eric B. | last16 = Kane | first16 = Stephen R. | last17 = Barclay | first17 = Thomas | last18 = Bean | first18 = Jacob L. | last19 = Brassuer | first19 = C. E. | last20 = Charbonneau | first20 = David | last21 = Ge | first21 = Jian | last22 = Lissauer | first22 = Jack J. | last23 = Mann | first23 = Andrew W. | last24 = McLean | first24 = Brian | last25 = Mullally | first25 = Susan | last26 = Narita | first26 = Norio | last27 = Plavchan | first27 = Peter | last28 = Ricker | first28 = George R. | last29 = Sasselov | first29 = Dimitar | last30 = Seager | first30 = S. | last31 = Sharma | first31 = Sanjib | last32 = Shiao | first32 = Bernie | last33 = Sozzetti | first33 = Alessandro | last34 = Stello | first34 = Dennis | last35 = Vanderspek | first35 = Roland | last36 = Wallace | first36 = Geoff | last37 = Winn | first37 = Joshua N. | title = The Revised ''TESS'' Input Catalog and Candidate Target List | journal = The Astronomical Journal | date = 9 September 2019 | volume = 158 | issue = 4 | page = 138 | eissn = 1538-3881 | doi = 10.3847/1538-3881/ab3467 | bibcode = 2019AJ....158..138S | arxiv = 1905.10694 | s2cid = 166227927 | hdl = 1721.1/124721 | hdl-access = free | doi-access = free}}</ref>
⚫
<ref name = McDonald2017>{{cite journal |bibcode=2017MNRAS.471..770M |title=Fundamental parameters and infrared excesses of Tycho-Gaia stars |last1=McDonald |first1=I. |last2=Zijlstra |first2=A. A. |last3=Watson |first3=R. A. |journal=Monthly Notices of the Royal Astronomical Society |year=2017 |volume=471 |issue=1 |page=770 |doi=10.1093/mnras/stx1433 |arxiv=1706.02208 |doi-access=free}}</ref>


⚫
<ref name = McDonald2017>{{cite journal | last1 = McDonald | first1 = I. | last2 = Zijlstra | first2 = A. A. | last3 = Watson | first3 = R. A. | title = Fundamental parameters and infrared excesses of Tycho–Gaia stars | journal = Monthly Notices of the Royal Astronomical Society | date = 15 June 2017 | volume = 471 | issue = 1 | pages = 770–791 | issn = 0035-8711 | eissn = 1365-2966 | doi = 10.1093/mnras/stx1433 | bibcode = 2017MNRAS.471..770M | arxiv = 1706.02208 | doi-access = free }}</ref>
⚫
<ref name = Anders2019>{{cite journal |display-authors=1 |last1=Anders |first1=F. |last2=Khalatyan |first2=A. |last3=Chiappini |first3=C. |last4=Queiroz |first4=A. B. |last5=Santiago |first5=B. X. |last6=Jordi |first6=C. |last7=Girardi |first7=L. |last8=Brown |first8=A. G. A. |last9=Matijevic |first9=G. |last10=Monari |first10=G. |last11=Cantat-Gaudin |first11=T. |last12=Weiler |first12=M. |last13=Khan |first13=S. |last14=Miglio |first14=A. |last15=Carrillo |first15=I. |last16=Romero-Gómez |first16=M. |last17=Minchev |first17=I. |last18=de Jong |first18=R. S. |last19=Antoja |first19=T. |last20=Ramos |first20=P. |last21=Steinmetz |first21=M. |last22=Enke |first22=H. |title=Photo-astrometric distances, extinctions, and astrophysical parameters for Gaia DR2 stars brighter than G = 18 |journal=Astronomy and Astrophysics |date=1 August 2019 |volume=628 |pages=A94 |doi=10.1051/0004-6361/201935765 |arxiv=1904.11302 |bibcode=2019A&A...628A..94A |s2cid=131780028 |issn=0004-6361 |doi-access=free}}</ref>


<ref name = Eggelton2008>{{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]] | volume=389 | issue=2 | pages=869–879 | date=September 2008 | doi=10.1111/j.1365-2966.2008.13596.x | bibcode=2008MNRAS.389..869E | arxiv=0806.2878 | s2cid=14878976 |doi-access=free}}</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 = Anders2019>{{cite journal | display-authors = 1 | last1 = Anders | first1 = F. | last2 = Khalatyan | first2 = A. | last3 = Chiappini | first3 = C. | last4 = Queiroz | first4 = A. B. | last5 = Santiago | first5 = B. X. | last6 = Jordi | first6 = C. | last7 = Girardi | first7 = L. | last8 = Brown | first8 = A. G. A. | last9 = Matijevič | first9 = G. | last10 = Monari | first10 = G. | last11 = Cantat-Gaudin | first11 = T. | last12 = Weiler | first12 = M. | last13 = Khan | first13 = S. | last14 = Miglio | first14 = A. | last15 = Carrillo | first15 = I. | last16 = Romero-Gómez | first16 = M. | last17 = Minchev | first17 = I. | last18 = de Jong | first18 = R. S. | last19 = Antoja | first19 = T. | last20 = Ramos | first20 = P. | last21 = Steinmetz | first21 = M. | last22 = Enke | first22 = H. | title = Photo-astrometric distances, extinctions, and astrophysical parameters for ''Gaia'' DR2 stars brighter than ''G'' = 18| journal = Astronomy & Astrophysics | date = August 2019 | volume = 628 | page = A94 | issn = 0004-6361 | eissn = 1432-0746 | doi = 10.1051/0004-6361/201935765 | bibcode = 2019A&A...628A..94A | arxiv = 1904.11302 | 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>

<ref name = Kervella2004>{{cite journal | last1 = Kervella | first1 = P. | last2 = Thévenin | first2 = F. | last3 = Di Folco | first3 = E. | last4 = Ségransan | first4 = D. | title = The angular sizes of dwarf stars and subgiants | journal = Astronomy & Astrophysics | date = October 2004 | volume = 426 | issue = 1 | pages = 297–307 | issn = 0004-6361 | eissn = 1432-0746 | doi = 10.1051/0004-6361:20035930 | bibcode = 2004A&A...426..297K | arxiv = astro-ph/0404180 | doi-access = free }}</ref>

<ref name = Haggkvist1970>{{cite journal | last1=Haggkvist | first1=L. | last2=Oja | first2=T. | title=Results of BV photometry 1969-70 (Uppsala refractor) | journal=Private Communication | year=1970 | bibcode=1970Priv.........0H | page=}}</ref>

<ref name = Verbunt2010>{{cite journal | last1 = Verbunt | first1 = F. | last2 = van Gent | first2 = R. H. | title = The star catalogue of Hevelius | journal = Astronomy and Astrophysics | date = June 2010 | volume = 516 | page = A29 | issn = 0004-6361 | eissn = 1432-0746 | doi = 10.1051/0004-6361/201014003 | bibcode = 2010A&A...516A..29V | doi-access = free}}</ref>

<ref name = Stebbins1930>{{cite journal |last1=Stebbins |first1=Joel |last2=Huffer |first2=Charles Morse |title=The constancy of the light of red stars |journal=Publications of the Washburn Observatory |date=1930 |volume=15 |pages=140–174 |bibcode=1930PWasO..15..140S}}</ref>

<ref name = Pyl'skaja1978>{{cite journal |last1=Pyl'skaja |first1=O. P. |last2=Zakharova |first2=P. E. |last3=Polushina |first3=T. S. |title=V-R Colours of Red Variable Stars |journal=Information Bulletin on Variable Stars |date=December 1978 |volume=1513 |pages=1 |issn=0374-0676 |bibcode=1978IBVS.1513....1P}}</ref>

<ref name = Eggen1967>{{cite journal | last1 = Eggen | first1 = Olin J. | title = - and Broad-Band Photometry of Red Stars. Northern Giants | journal = The Astrophysical Journal Supplement Series | date = September 1967 | volume = 14 | page = 307 | issn = 0067-0049 | eissn = 1538-4365 | doi = 10.1086/190158 | bibcode = 1967ApJS...14..307E | doi-access = free}}</ref>


}}
}}

Revision as of 17:39, 19 January 2023

HD 27245
Observation data
Epoch J2000.0      Equinox J2000.0 (ICRS)
Constellation Camelopardalis
Right ascension 04h 21m 47.64917s[1]
Declination +60° 44′ 08.2461″[1]
Apparent magnitude (V) 5.40±0.01[2]
Characteristics
Spectral type M0 III[3]
B−V color index +1.50[4]
Variable type suspected[5]
Astrometry
Radial velocity (Rv)+25.2±0.3[6] km/s
Proper motion (μ) RA: +55.890 mas/yr[1]
Dec.: −114.046 mas/yr[1]
Parallax (π)5.3716 ± 0.0848 mas[1]
Distance607 ± 10 ly
(186 ± 3 pc)
Absolute magnitude (MV)−0.27[7]
Details
Mass1.08[8] M☉
Radius52.8±2.7[9] R☉
Luminosity570±16[10] L☉
Surface gravity (log g)1.29[11] cgs
Temperature4,033±122[12] K
Metallicity [Fe/H]+0.11[8] dex
Other designations
25 H. Camelopardalis,[13] NSV 1558, AG+60°426, BD+60°800, FK5 2317, GC 5244, HD 27245, HIP 20736, HR 1335, SAO 13113[14]
Database references
SIMBADdata

HD 27245, also known as HR 1335 or rarely 25 H. Camelopardalis is a solitary red-hued star[15] located in the northern circumpolar constellation Camelopardalis. It has an apparent magnitude of 5.4,[2] making it faintly visible to the naked eye. Gaia DR3 Parallax measurements place it approximately 607 light years[1] away from it the Solar System and is drifting further away with a heliocentric radial velocity of 25.2 km/s.[6] At its current distance, HD 27245's brightness is diminished by 0.36 magnitudes due to extinction from interstellar dust. It has an absolute magnitude of −0.27.[7]

HD 27245 is an aging red giant with a stellar classification of M0 III.[3] It has 108% the mass of the Sun[8] but has expanded to a radius of 52.8 R☉.[11] It radiates 570 times the luminosity of the Sun[10] from its enlarged photosphere at an effective temperature of 4,033 K.[12] HD 27245's iron abundance is 129% that of the Sun's,[8] making it metal enriched.

HD 27245 is a suspected variable star with an amplitude of 0.05 magnitudes.[5] Its variability was first observed in 1930 by Joel Stebbins.[16] However, Eggen (1967) instead lists it as an ordinary M-type giant and used the object for comparison.[17] In 1978-9, 8 LMi was again listed as a variable star but did not provide further insight.[18] As of 2017, the star has not been confirmed to be variable.[5]

References

  1. ^ a b c d e Brown, A. G. A.; et al. (Gaia collaboration) (2021). "Gaia Early Data Release 3: Summary of the contents and survey properties". Astronomy & Astrophysics. 649: A1. arXiv:2012.01533. Bibcode:2021A&A...649A...1G. doi:10.1051/0004-6361/202039657. S2CID 227254300. (Erratum: doi:10.1051/0004-6361/202039657e). Gaia EDR3 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 Appenzeller, Immo (April 1967). "MK Spectral Types for 185 Bright Stars". Publications of the Astronomical Society of the Pacific. 79: 102. Bibcode:1967PASP...79..102A. doi:10.1086/128449. eISSN 1538-3873. ISSN 0004-6280.
  4. ^ Haggkvist, L.; Oja, T. (1970). "Results of BV photometry 1969-70 (Uppsala refractor)". Private Communication. Bibcode:1970Priv.........0H.
  5. ^ a b c Samus’, N. N.; Kazarovets, E. V.; Durlevich, O. V.; Kireeva, N. N.; Pastukhova, E. N. (January 2017). "General catalogue of variable stars: Version GCVS 5.1". Astronomy Reports. 61 (1): 80–88. Bibcode:2017ARep...61...80S. doi:10.1134/S1063772917010085. eISSN 1562-6881. ISSN 1063-7729. S2CID 125853869.
  6. ^ a b Famaey, B.; Jorissen, A.; Luri, X.; Mayor, M.; Udry, S.; Dejonghe, H.; Turon, C. (January 2005). "Local kinematics of K and M giants from CORAVEL/Hipparcos/Tycho-2 data. Revisiting the concept of superclusters". Astronomy and Astrophysics. 430: 165. arXiv:astro-ph/0409579. Bibcode:2005A&A...430..165F. doi:10.1051/0004-6361:20041272. S2CID 17804304.
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External links

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