File:Eridanus_constellation_map.svg · Wikimedia Commons · See Wikimedia Commons
AI overview
Achernar is the ninth-brightest star visible in Earth's night sky and the brightest star in the constellation Eridanus, formally designated as Alpha Eridani. It is actually a binary system with two components, with the primary star being the one commonly referred to as Achernar.
AI-generated from the Wikipedia summary — may contain errors.
Astronomical data · SIMBAD
- Object type
- Be*
- Spectral type
- B6Vpe
- Distance
- 139 light-years
- Redshift
- z = 0.000028253277987166925
- Coordinates
- RA 24.4285° · Dec -57.2368°
View on SIMBAD →
via SIMBAD · CDS Strasbourg
Wikidata facts
- Instance of
- Ap/Bp star
- Official name
- Achernar
- Constellation
- Eridanus
- Distance from Earth
- 43
- Radius
- 7.3
- Mass
- 6.7
- Variable-star type
- Lambda Eridani variable
- Image
- Position Alpha Eri.png
Show 19 more facts
- Commons category
- Achernar
- spectral class
- B5
- catalog code
- ALS 16724
- stellar rotational velocity
- 260
- apparent magnitude
- 0.88
- effective temperature
- 20230
- surface gravity
- 4000
- right ascension
- 24.428522833
- declination
- -57.236752806
- parallax
- 22.68
- radial velocity
- 19.0
- epoch
- J2000.0
- luminosity
- 1076
- flattening
- 0.75
- right ascension component of proper motion
- 92
- declination component of proper motion
- -34
- age estimated by a dating method
- 37.3
- on focus list of Wikimedia project
- Wikipedia:Vital articles/Level/4
- absolute magnitude
- -2.77
Sources (8)
via Wikidata · CC0