Gliese 445
Image of AC +79 3888 (circled), also known as Gliese 445, located 17.1 light-years from Earth Credit: Caltech/Palomar | |
| Observation data Epoch J2000 Equinox J2000 | |
|---|---|
| Constellation | Camelopardalis |
| Right ascension | 11h 47m 41.3869s |
| Declination | +78° 41′ 28.176″ |
| Apparent magnitude (V) | 10.80 |
| Characteristics | |
| Evolutionary stage | main sequence |
| Spectral type | M4.0Ve |
| B−V color index | 1.572 |
| Astrometry | |
| Radial velocity (Rv) | −111.50±0.15 km/s |
| Proper motion (μ) | RA: 748.418 mas/yr Dec.: 480.804 mas/yr |
| Parallax (π) | 190.3251±0.0194 mas |
| Distance | 17.137 ± 0.002 ly (5.2542 ± 0.0005 pc) |
| Absolute magnitude (MV) | 12.227 |
| Details | |
| Mass | 0.24±0.02 M☉ |
| Radius | 0.266±0.005 R☉ |
| Luminosity | 0.008 L☉ |
| Surface gravity (log g) | 4.72 cgs |
| Temperature | 3,356±31 K |
| Metallicity [Fe/H] | −0.30 dex |
| Rotational velocity (v sin i) | <2.5 km/s |
| Other designations | |
| GJ 445, HIP 57544, AC +79 3888, G 254-29, LFT 849, LHS 2459, LTT 13235, NLTT 28539, PLX 2722 | |
| Database references | |
| SIMBAD | data |
| ARICNS | data |
Gliese 445 Location of Gliese 445 in the constellation Camelopardalis | |
Gliese 445 (Gl 445 or AC +79 3888) is an M-type main sequence star in the northern part of the northern circumpolar constellation of Camelopardalis.