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EntityQ3304081· pop 6· linked from 122 articles

渐台增四

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Also known as 15 Lyrae

star in the constellation Lyra

Wikidata facts

Distance from Earth
380.677
Radius
120
Show 14 more facts
spectral class
K5
catalog code
UBV M 23403
apparent magnitude
4.470633
radial velocity
-17.355
effective temperature
4220
parallax
2.6269
metallicity
-0.03
stellar rotational velocity
10
surface gravity
162
luminosity
2228
right ascension component of proper motion
6.232
declination component of proper motion
9.4
right ascension
285.00344026273
declination
32.1455132119
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Article · 中文

天琴座λ,又名BD+31 3424,HD 176670、SAO 67682、HR 7192,是天琴座的一颗恒星,视星等为4.93,位于銀經62.91,銀緯12.38,其B1900.0坐标为赤經18h 56m 14.4s,赤緯+32° 12.38′ 20″。该星是一个橙红色亮巨星,距离我们1550光年。绝对星等为-3.7.总的辐射能量预计为太阳的8000倍,该星表面温度为4250K,远低于太阳,因此该星之所以有如此高的亮度均得益于巨大的体积。该星的直径为太阳的170倍,根据光度推算其质量为8个太阳质量。

Abstract from DBpedia / Wikipedia · CC BY-SA

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