Zeta Eridani
Star ζ Eridani |
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AladinLite | |||||||||||||||||||
Observation dates equinox : J2000.0 , epoch : J2000.0 |
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Constellation | Eridanus | ||||||||||||||||||
Right ascension | 03 h 15 m 50.03 s | ||||||||||||||||||
declination | -08 ° 49 ′ 11 ″ | ||||||||||||||||||
Apparent brightness | 4.8 likes | ||||||||||||||||||
Typing | |||||||||||||||||||
B − V color index | +0.23 | ||||||||||||||||||
U − B color index | +0.09 | ||||||||||||||||||
R − I index | +0.13 | ||||||||||||||||||
Spectral class | A5m | ||||||||||||||||||
Astrometry | |||||||||||||||||||
Radial velocity | (−5.8 ± 4.2) km / s | ||||||||||||||||||
parallax | (29.72 ± 0.29) mas | ||||||||||||||||||
distance | (110 ± 1) ly (33.6 ± 0.3) pc |
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Proper movement | |||||||||||||||||||
Rec. Share: | (−0.35 ± 0.39) mas / a | ||||||||||||||||||
Dec. portion: | (+46.10 ± 0.27) mas / a | ||||||||||||||||||
Physical Properties | |||||||||||||||||||
Other names and catalog entries |
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ζ Eridani ( ζ Eridani , short ζ Eri ) is a star in the constellation Eridanus about 100 light years away . Zeta Eridani belongs to the spectral class A5m and has an apparent brightness of 4.8 mag.
The star bears the historical proper name Zibal . On September 12, 2016, the IAU set this proper name as the standardized proper name for this star.
Individual evidence
- ↑ a b c Hipparcos catalog (ESA 1997)
- ↑ a b c Bright Star Catalog
- ↑ Pulkovo radial velocities for 35493 HIP stars
- ↑ a b c Hipparcos, the New Reduction (van Leeuwen, 2007)
- ↑ Bulletin of the IAU Working Group on Star Names, No. October 2, 2016. (PDF) Retrieved November 10, 2016 (English, 151 KiB).