File:Eridanus_constellation_map.svg · Wikimedia Commons · See Wikimedia Commons
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°
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
Article · Deutsch
Achernar, auch bekannt als α Eridani (Alpha Eridani), ist der hellste Stern im Sternbild Fluss Eridanus und der neunthellste Stern am Himmel. Er steht so weit südlich, dass er von Europa aus nicht zu sehen ist, sondern erst südlich des 32. Grades nördlicher Breite.
Abstract from DBpedia / Wikipedia · CC BY-SA