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HIP 79431 - 版本历史
2026-07-16T07:52:05Z
在这个wiki上该页的修订历史
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2020-09-26T00:40:16Z
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<p><b>新页面</b></p><div>{{Starbox begin <br />
| name = [[依巴谷卫星|HIP]] 79431<br />
}}<br />
{{Starbox observe <br />
| epoch = [[J2000.0]]<br />
| constell = [[天蠍座]]<br />
| ra = {{RA|16|12|41.77}}<br />
| dec = {{DEC|−18|52|31.8}}<br />
| appmag_v = 11.337<br />
}} <br />
{{Starbox character <br />
| class = M3V<br />
| appmag_1_passband = B<br />
| appmag_1 = 14.39<br />
| appmag_2_passband = R<br />
| appmag_2 = 10.46<br />
| appmag_3_passband = I<br />
| appmag_3 = 9.37<br />
| appmag_4_passband = J<br />
| appmag_4 = 7.555<br />
| appmag_5_passband = H<br />
| appmag_5 = 6.855<br />
| appmag_6_passband = K<br />
| appmag_6 = 6.589<br />
| r-i = 1.09<br />
| v-r = 0.88<br />
| b-v = 3.05<br />
| u-b = <br />
| variable = ''none''<br />
}} <br />
{{Starbox astrometry <br />
| radial_v = <br />
| prop_mo_ra = 24.12<br />
| prop_mo_dec = −210.89<br />
| parallax = 67.13<br />
| p_error = 3.55<br />
| absmag_v = 10.47<br />
}} <br />
{{Starbox detail <br />
| mass = 0.49 ± 0.05<br />
| radius = <br />
| gravity = <br />
| luminosity = <br />
| temperature = 3191 ± 100<br />
| metal = 0.4 ± 0.1<br />
| age_gyr = <br />
| rotation = <br />
}} <br />
{{Starbox catalog <br />
| names = LP 804-27, [[New Luyten Two-Tenths catalogue|NLTT]] 42226<br />
}}<br />
{{Starbox reference<br />
| Simbad = HIP+79431<br />
| NSTED = HIP+79431<br />
| ARICNS = 05765<br />
| EPE = HIP+79431<br />
}}<br />
{{Starbox end}}<br />
<br />
'''HIP 79431'''是一個距離地球約49光年的[[紅矮星]]，位於天蠍座。该恆星體積、溫度、光度和質量都遠比太陽低，[[金屬量]]則是太陽的2.5倍。2010年在該恆星旁發現一顆[[氣體巨行星]]，該行星是已知環繞紅矮星的行星中最大的之一。<br />
<br />
==行星系統==<br />
{{OrbitboxPlanet begin<br />
| table_ref = <ref>{{cite journal | url=http://www.journals.uchicago.edu/doi/abs/10.1086/651058 | author=Apps ''et al.'' | title=M2K: I. A Jupiter-Mass Planet Orbiting the M3V Star HIP 79431 | journal=[[Publications of the Astronomical Society of the Pacific]] | volume=122 | issue=888 | pages=156–161 | year=2010 | format=abstract | doi=10.1086/651058 | bibcode=2010PASP..122..156A | access-date=2012-02-20 | archive-date=2010-12-03 | archive-url=https://web.archive.org/web/20101203050845/http://www.journals.uchicago.edu/doi/abs/10.1086/651058 | dead-url=no }} ([http://arxiv.org/abs/1001.1174 web preprint] {{Wayback|url=http://arxiv.org/abs/1001.1174 |date=20170202012147 }})</ref>}}<br />
{{OrbitboxPlanet<br />
| exoplanet = [[HIP 79431b|b]]<br />
| mass = ≥2.1<br />
| period = 111.7 ± 0.7<br />
| semimajor = 0.36<br />
| eccentricity = 0.29 ± 0.02<br />
}}<br />
{{Orbitbox end}}<br />
<br />
== 參見 ==<br />
* [[葛利斯179]]<br />
* [[確定存在的太陽系外行星列表]]<br />
<br />
== 參考資料 ==<br />
{{reflist}}<br />
<br />
{{Sky|16|12|41.77|−18|52|31.8|49}}<br />
{{天蝎座恒星}}<br />
<br />
[[Category:紅矮星]]<br />
[[Category:HIP天體|079431]]<br />
[[Category:天蠍座]]<br />
[[Category:行星系]]<br />
<br />
{{main-star-stub}}</div>
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