45 Eridani
| Observation data Epoch J2000 Equinox J2000 | |
|---|---|
| Constellation | Eridanus |
| Right ascension | 04h 31m 52.667s[1] |
| Declination | −00° 02′ 38.44″[1] |
| Apparent magnitude (V) | 4.896[1] |
| Characteristics | |
| Spectral type | K0/1III[2] |
| U−B color index | +1.41[3] |
| B−V color index | +1.33[3] |
| Astrometry | |
| Radial velocity (Rv) | 16.30 ± 0.8[4] km/s |
| Proper motion (μ) | RA: -1.85[5] mas/yr Dec.: -8.19[5] mas/yr |
| Parallax (π) | 4.97 ± 0.38 mas[5] |
| Distance | 660 ± 50 ly (200 ± 20 pc) |
| Other designations | |
| Database references | |
| SIMBAD | data |
45 Eridani (45 Eri) is a star in the constellation Eridanus. Its apparent magnitude is 4.896.[1]
References
- ^ a b c d Høg, E.; et al. (2000). "The Tycho-2 catalogue of the 2.5 million brightest stars". Astronomy and Astrophysics. 355: L27–L30. Bibcode:2000A&A...355L..27H.
- ^ Houk, N.; Swift, C. (1999). "Michigan catalogue of two-dimensional spectral types for the HD Stars, Vol. 5". Michigan Spectral Survey. 5. Bibcode:1999MSS...C05....0H.
- ^ a b Mermilliod, J.-C. (1986). "Compilation of Eggen's UBV data, transformed to UBV (unpublished)". Bibcode:1986EgUBV........0M.
{{cite journal}}: Cite journal requires|journal=(help) - ^ Gontcharov, G. A. (2006). "Pulkovo Compilation of Radial Velocities for 35 495 Hipparcos stars in a common system". Astronomy Letters. 32 (11): 759–771. arXiv:1606.08053. Bibcode:2006AstL...32..759G. doi:10.1134/S1063773706110065.
- ^ a b c van Leeuwen, F.; et al. (2007). "Validation of the new Hipparcos reduction". Astronomy and Astrophysics. 474 (2): 653–664. arXiv:0708.1752. Bibcode:2007A&A...474..653V. doi:10.1051/0004-6361:20078357.
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