Astronomy:i Eridani
From HandWiki
Short description: B-type star in the constellation Eridanus
| Observation data Equinox J2000.0]] (ICRS) | |
|---|---|
| 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[2] mas |
| 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 | |
| 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
- ↑ 1.0 1.1 Anderson, E.; Francis, Ch. (2012). "XHIP: An extended hipparcos compilation". Astronomy Letters 38 (5): 331. doi:10.1134/S1063773712050015. Bibcode: 2012AstL...38..331A XHIP record for this object at VizieR.
- ↑ 2.0 2.1 2.2 2.3 2.4 Vallenari, A. et al. (2022). "Gaia Data Release 3. Summary of the content and survey properties". Astronomy & Astrophysics. doi:10.1051/0004-6361/202243940 Gaia DR3 record for this source at VizieR.
- ↑ 3.0 3.1 "VizieR Detailed Page". http://vizier.u-strasbg.fr/viz-bin/VizieR-5?-out.add=.&-source=5050&-corr=PK=HR&-out.max=9999&HR=1214. Retrieved 2012-07-13.
- ↑ 4.0 4.1 4.2 4.3 4.4 Zorec, J.; Royer, F. (2012). "Rotational velocities of A-type stars. IV. Evolution of rotational velocities". Astronomy and Astrophysics 537: A120. doi:10.1051/0004-6361/201117691. Bibcode: 2012A&A...537A.120Z.
- ↑ 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.
- ↑ 6.0 6.1 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. doi:10.1093/mnras/stx1433. Bibcode: 2017MNRAS.471..770M.
- ↑ Gontcharov, G. A. (2012). "Dependence of kinematics on the age of stars in the solar neighborhood". Astronomy Letters 38 (12): 771. doi:10.1134/S1063773712120031. Bibcode: 2012AstL...38..771G.
- ↑ "i Eridani". SIMBAD. Centre de données astronomiques de Strasbourg. http://simbad.u-strasbg.fr/simbad/sim-basic?Ident=i+Eridani.
 |  |
