Observation data Epoch J2000 Equinox J2000 | |
---|---|
Constellation | Andromeda |
Right ascension | 00h 20m 24.40107s[1] |
Declination | +30° 56′ 08.2099″[1] |
Apparent magnitude (V) | 5.869[2] |
Characteristics | |
Evolutionary stage | main sequence[3] |
Spectral type | B7V[4] |
U−B color index | −0.45[5] |
B−V color index | −0.10[5] |
Variable type | Suspected[6] |
Astrometry | |
Radial velocity (Rv) | 3.8[7] km/s |
Proper motion (μ) | RA: 15.734±0.159[1] mas/yr Dec.: −2.957±0.125[1] mas/yr |
Parallax (π) | 5.5900 ± 0.1069 mas[1] |
Distance | 580 ± 10 ly (179 ± 3 pc) |
Absolute magnitude (MV) | −0.5[8] |
Details | |
Mass | 3.75±0.08[3] M☉ |
Radius | 2.9[9] R☉ |
Luminosity | 245+36 −31[3] L☉ |
Surface gravity (log g) | 3.988±0.017[10] cgs |
Temperature | 13,186±100[10] K |
Rotational velocity (v sin i) | 113±8[10] km/s |
Other designations | |
Database references | |
SIMBAD | data |
HD 1606 is a single[12] star in the northern constellation of Andromeda, positioned a few degrees to the northeast of the bright star Alpheratz. It has a blue-white hue and is dimly visible to the naked eye with an apparent visual magnitude of 5.87.[2] Although it is suspected of variability, none has been conclusively found.[13] The star is located at a distance of approximately 580 light-years (179 parsecs) from the Sun based on parallax,[1] and is drifting further away with a radial velocity of +4 km/s.[7] It has an absolute magnitude of −0.5.[8]
This is a B-type main-sequence star with a stellar classification of B7V,[4] which means it is currently generating energy through hydrogen fusion at its core. It has 3.75[3] times the mass of the Sun and a fairly high rate of spin, showing a projected rotational velocity of 113 km/s.[10] The star is radiating 245[3] times the luminosity of the Sun from its photosphere at an effective temperature of 13,186 K.[10]