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LP 658-2 - 版本历史
2026-07-06T05:14:11Z
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2023-06-12T21:48:39Z
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<p><b>新页面</b></p><div>{{Sky|05|55|09.53|-|04|10|07.1|21.0}}<br />
{{Starbox begin<br />
| name = LP 658-2<br />
}}<br />
{{Starbox observe<br />
| epoch = [[J2000.0]]<br />
| equinox = [[J2000.0]] ([[International Celestial Reference System|ICRS]])<br />
| constell = [[獵戶座]]<br />
| ra = {{RA|05|55|09.53}}<ref name=sb0>{{cite simbad|title=GJ 223.2|access-date=2011-01-17}}</ref><br />
| dec = {{DEC|−04|10|07.1}}<ref name=sb0 /><br />
| appmag_v=14.488<ref name="Holberg2008">{{cite journal |last1=Holberg |first1=J. B. |last2=Sion |first2=E. M. |last3=Oswalt |first3=T. |last4=McCook |first4=G. P. |last5=Foran |first5=S. |last6=Subasavage |first6=John P. |title=A new look at the local white dwarf population |url=https://archive.org/details/sim_astronomical-journal_2008-04_135_4/page/1225 |journal=The Astronomical Journal |date=1 April 2008 |volume=135 |issue=4 |pages=1225–1238 |bibcode=2008AJ....135.1225H |doi=10.1088/0004-6256/135/4/1225|doi-access=free }}</ref><br />
}}<br />
{{Starbox character<br />
| class = DZ11.8<ref name="Holberg2008"/><br />
| appmag_1_passband=B<br />
| appmag_1=15.49<ref name=sb0 /><br />
| appmag_2_passband=V <br />
| appmag_2=14.488<ref name="Holberg2008"/><br />
| appmag_3_passband=R<sub>KC</sub><br />
| appmag_3=13.99<ref name="Subasavage2009">{{cite journal |last1=Subasavage |first1=John P. |last2=Jao |first2=Wei-Chun |last3=Henry |first3=Todd J. |last4=Bergeron |first4=P. |last5=Dufour |first5=P. |last6=Ianna |first6=Philip A. |last7=Costa |first7=Edgardo |last8=Méndez |first8=René A. |title=The solar neighborhood. XXI. Parallax results from the CTIOPI 0.9 m program: 20 new members of the 25 parsec white dwarf sample |journal=The Astronomical Journal |date=1 June 2009 |volume=137 |issue=6 |pages=4547–4560 |bibcode=2009AJ....137.4547S |doi=10.1088/0004-6256/137/6/4547|arxiv=0902.0627 |s2cid=14696597 }}</ref><br />
| appmag_4_passband=I<sub>KC</sub><br />
| appmag_4=13.51<ref name="Subasavage2009"/><br />
| appmag_5_passband=J<br />
| appmag_5=13.05 ± 0.03<ref name="Subasavage2009"/><br />
| appmag_6_passband=H<br />
| appmag_6=12.86 ± 0.03<ref name="Subasavage2009"/><br />
| appmag_7_passband=K<sub>S</sub><br />
| appmag_7=12.78 ± 0.03<ref name="Subasavage2009"/><br />
| b-v = 1.0<ref name=sb0 /><ref name="Holberg2008"/><br />
}}<br />
{{Starbox astrometry<br />
| prop_mo_ra = {{val|535.249|0.017}}<ref name="GaiaEDR3"/><br />
| prop_mo_dec = {{val|-2317.011|0.015}}<ref name="GaiaEDR3"/><br />
| parallax = 155.2373<br />
| p_error = 0.0175<br />
| parallax_footnote = <ref name="GaiaEDR3">{{Cite Gaia EDR3|3022956969731332096}}</ref><br />
| absmag_v=15.44 ± 0.03<ref name="Subasavage2009"/><br />
}}<br />
{{Starbox detail<br />
| component1=From Holberg etal. (2008)<br />
| source=<ref name="Holberg2008"/><br />
| mass={{val|0.45|0.01}}<br />
| gravity={{val|7.80|0.02}}<ref name="Holberg2008"/><br />
| radius=0.014<ref name="Holberg2008"/><ref name="note 1" group="note">From surface gravity and mass.</ref><br />
| temperature={{val|4270|70|fmt=commas}},<ref name="Holberg2008"/><br />
| age_gyr=6.42<ref name="Sion2009">{{cite journal |last1=Sion |first1=Edward M. |last2=Holberg |first2=J. B. |last3=Oswalt |first3=Terry D. |last4=McCook |first4=George P. |last5=Wasatonic |first5=Richard |title=The white dwarfs within 20 parsecs of the Sun: kinematics and statistics |journal=The Astronomical Journal |date=1 December 2009 |volume=138 |issue=6 |pages=1681–1689 |arxiv=0910.1288 |bibcode=2009AJ....138.1681S |doi=10.1088/0004-6256/138/6/1681|s2cid=119284418 }}</ref><br />
}}<br />
{{Starbox catalog<br />
| names=GJ&nbsp;223.2, [[Gliese-Jahreiss catalogue|GJ]]&nbsp;9193, HL&nbsp;4, [[Luyten Half-Second catalogue|LHS]]&nbsp;32, [[Luyten-Palomar proper motion catalogue|LP]]&nbsp;658-2, [[New Luyten Two-Tenths catalogue|NLTT]]&nbsp;15811, [[Giclas|G]] 099-044<ref name="Yale">{{cite book |last1=van Altena |first1=W. F. |last2=Lee |first2=J. T. |last3=Hoffleit |first3=E. D. |title=The General Catalogue of Trigonometric [Stellar] Parallaxes |date=1995 |publisher=Yale University Observatory |location=New Haven, CT |edition=4th |bibcode=1995gcts.book.....V}} [http://vizier.cfa.harvard.edu/viz-bin/VizieR?-source=I/238 VizieR entry] {{Wayback|url=http://vizier.cfa.harvard.edu/viz-bin/VizieR?-source=I/238 |date=20230321162642 }}.</ref><br />
<br />
, [[Giclas|G]] 99-44, [[Giclas|G]] 106-12, [[white dwarf|WD]]&nbsp;0552–041, EGGR&nbsp;45.<ref name=sb0 /><br />
}}<br />
{{Starbox reference<br />
| Simbad=GJ+223.2<br />
}}<br />
{{Starbox end}}<br />
<br />
'''LP 658-2'''是一顆位於[[獵戶座]]的白矮星。<ref name=sb0 /> [[視星等]]大約14.488。<ref name="Holberg2008"/><br />
<br />
==距離==<br />
根據2009年的一篇論文，它是距離太陽最近的第八顆已知白矮星（僅次於[[天狼星#天狼星B|天狼星B]]、[[南河三#伴星|南河三B]]、[[范馬南星]]、[[GJ 440]]、[[波江座40|波江座40B]]、[[施泰因2051|施泰因2051B]]和[[G 240-72]]）。<ref>Table 1 in {{harvnb|Sion|Holberg|Oswalt|McCook|2009}}</ref><br />
<br />
==物理參數==<br />
<br />
===顏色===<br />
儘管它被歸類為“白”矮星，但由於溫度比太陽低，可與[[橙矮星]]相媲美，因此它看起來是黃白色而不是白色。<br />
<br />
==註釋==<br />
<references group="note"/><br />
<br />
==參考==<br />
{{reflist}}<br />
{{Nearest star systems|5}}<br />
{{Stars of Orion}}<br />
<br />
{{DEFAULTSORT:LP 658-2}}<br />
[[Category:獵戶座]]<br />
[[Category:白矮星]]<br />
[[Category:格利澤和GJ天體|0223.2]]</div>
imported>InternetArchiveBot