Observation data Epoch J2000 Equinox J2000 | |
---|---|
Constellation | Eridanus |
Right ascension | 02h 52m 50.74s[1] |
Declination | −09° 26′ 28.4″[1] |
Apparent magnitude (V) | 6.325[2] |
Characteristics | |
Evolutionary stage | main-sequence star |
Spectral type | A4V[2] |
Astrometry | |
Radial velocity (Rv) | 38.07±0.28[1] km/s |
Proper motion (μ) | RA: 109.825 mas/yr[1] Dec.: 40.094 mas/yr[1] |
Parallax (π) | 10.6465 ± 0.0374 mas[1] |
Distance | 306 ± 1 ly (93.9 ± 0.3 pc) |
Absolute magnitude (MV) | 1.30[citation needed] |
Other designations | |
Database references | |
SIMBAD | data |
HD 17943, or HR 859, is a high proper-motion star in the constellation of Eridanus. It has a right ascension of 02h 52m 50.74s and a declination of −09° 26′ 28.4″. Its apparent magnitude is equal to 6.325. Based on parallax measurements from the Gaia spacecraft, it is at a distance of 306 light-years (94 parsecs). It belongs to spectral class A4V.[2][1]
This star is incorrectly called by the Bayer designation "Sigma Eridani" in the 1991 edition of the Bright Star Catalogue. Bayer's Sigma Eridani is in fact non-existent.[3][4][5]