I Eridani

Not to be confused with ι (Iota) Eridani.

i Eridani

Observation data Epoch J2000.0        Equinox J2000.0
Constellation	Eridanus [1]
Right ascension	03h 53m 38.95s [2]
Declination	−34° 43′ 56.3″ [2]
Apparent magnitude  (V)	5.11 [3]
Characteristics
Evolutionary stage	main sequence [4]
Spectral type	B6/7V [5]
B−V color index	−0.13 [3]
Astrometry
Proper motion (μ)	RA: +31.797 [2] mas/yr Dec.: −1.902 [2] mas/yr
Parallax (π)	9.0016±0.0834  mas [2]
Distance	362 ± 3  ly (111 ± 1  pc)
Absolute magnitude  (MV)	−0.02 [1]
Details
Mass	3.8 [4]   M☉
Radius	2.5 [6]   R☉
Luminosity	226 [4]   L☉
Surface gravity (log g)	4.26 [6]   cgs
Temperature	13,772 [4]   K
Rotational velocity (v sin i)	43 [4]  km/s
Age	207 [7]   Myr
Other designations
CD−35°1455, HD 24626, HR 1214, SAO 194608 [8]
Database references
SIMBAD	data

i Eridani (HD 24626) is a B-type main-sequence star in the constellation Eridanus. With an apparent magnitude of 5.11, it is faintly visible to the naked eye on a clear night.

References

1. Anderson, E.; Francis, Ch. (2012). "XHIP: An extended hipparcos compilation". Astronomy Letters . 38 (5): 331. arXiv: 1108.4971 . Bibcode:2012AstL...38..331A. doi:10.1134/S1063773712050015. XHIP record for this object at VizieR.
2. Vallenari, A.; et al. (Gaia collaboration) (2023). "Gaia Data Release 3. Summary of the content and survey properties". Astronomy and Astrophysics. 674: A1. arXiv: 2208.00211 . Bibcode:2023A&A...674A...1G. doi: 10.1051/0004-6361/202243940 . S2CID   244398875. Gaia DR3 record for this source at VizieR.
3. "VizieR Detailed Page". Archived from the original on 2016-03-04. Retrieved 2012-07-13.
4. Zorec, J.; Royer, F. (2012). "Rotational velocities of A-type stars. IV. Evolution of rotational velocities". Astronomy and Astrophysics. 537: A120. arXiv: 1201.2052 . Bibcode:2012A&A...537A.120Z. doi:10.1051/0004-6361/201117691.
5. Houk, N. (1982). Michigan Catalogue of Two-dimensional Spectral Types for the HD stars. Volume_3. Declinations -40_ƒ0 to -26_ƒ0. Bibcode:1982mcts.book.....H.
6. McDonald, I.; Zijlstra, A. A.; Watson, R. A. (2017). "Fundamental parameters and infrared excesses of Tycho-Gaia stars". Monthly Notices of the Royal Astronomical Society. 471 (1): 770. arXiv: 1706.02208 . Bibcode:2017MNRAS.471..770M. doi: 10.1093/mnras/stx1433 .
7. Gontcharov, G. A. (2012). "Dependence of kinematics on the age of stars in the solar neighborhood". Astronomy Letters. 38 (12): 771. arXiv: 1606.08814 . Bibcode:2012AstL...38..771G. doi:10.1134/S1063773712120031.
8. "i Eridani". SIMBAD . Centre de données astronomiques de Strasbourg . Retrieved 2025-09-07.