File:Hydra_constellation_map.svg · Wikimedia Commons · See Wikimedia Commons
アルファルド
Sign in to saveAlso known as Alpha Hydrae, 30 Hydrae, HD 81797, 30 Hya, α Hya, α Hydrae
うみへび座で最も明るい恒星で2等星
Wikidata facts
- Constellation
- Hydra
- Image
- Hydra constellation map.png
Show 14 more facts
- catalog code
- UBV M 15411
- spectral class
- K2
- stellar rotational velocity
- 3.97
- apparent magnitude
- -1.21
- right ascension
- 141.896844596
- declination
- -8.658599532
- effective temperature
- 4131
- radial velocity
- -13.3
- parallax
- 18.40
- epoch
- J2000.0
- metallicity
- -0.04
- surface gravity
- 13.5
- right ascension component of proper motion
- -16
- declination component of proper motion
- 30
Sources (1)
via Wikidata · CC0
Article · 日本語
アルファルド (Alphard) あるいはうみへび座α星は、うみへび座で最も明るい恒星で2等星。
Abstract from DBpedia / Wikipedia · CC BY-SA