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EntityQ1097441· pop 6· linked from 172 articles

Also known as 52 Tauri, 52 Tau, φ Tau, φ Tauri, ADS 3137 A, ROT 635, HIC 20250, HIP 20250

star in the constellation Taurus

Wikidata facts

Instance of
star
Constellation
Taurus
Distance from Earth
87.365
Show 15 more facts
stellar rotational velocity
10
spectral class
K0
catalog code
IRAS 04172+2713
apparent magnitude
4.599448
effective temperature
4573
radial velocity
3.4
parallax
11.4462
epoch
J2000.0
metallicity
-0.31
surface gravity
160
absolute magnitude
-0.15
right ascension component of proper motion
-27.923
declination component of proper motion
-77.134
right ascension
65.08840040522
declination
27.35075230516
Sources (2)

via Wikidata · CC0

Article · 中文

砺石四,即金牛座φ(φ Tau,φ Tauri)是一对位于金牛座的双星,距离地球约342光年。 砺石四的主星砺石四A是一颗橙色K-型巨星,视星等为+4.97。它的伴星砺石四B的视星等为8.5,距离主星52角秒。 在中国古代星官系统中,它属于西方白虎七宿中昴宿的星官第四星,这也砺石四名字的来由。

Abstract from DBpedia / Wikipedia · CC BY-SA

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