16 Comae Berenices
16 Comae Berenices is a single star in the northern constellation of Coma Berenices. 16 Comae Berenices is the Flamsteed designation. It is a member of the Coma Star Cluster and is visible to the naked eye with an apparent visual magnitude of 4.96. Based upon an annual parallax shift of 11.7 mas, it is located about 279 light years away.
| Observation data Epoch J2000 Equinox J2000 | |
|---|---|
| Constellation | Coma Berenices |
| Right ascension | 12h 26m 59.29615s |
| Declination | +26° 49′ 32.5273″ |
| Apparent magnitude (V) | 4.96 |
| Characteristics | |
| Evolutionary stage | main sequence |
| Spectral type | A4 V |
| Astrometry | |
| Radial velocity (Rv) | +0.40±0.70 km/s |
| Proper motion (μ) | RA: −11.456 mas/yr Dec.: −9.220 mas/yr |
| Parallax (π) | 11.6745 ± 0.2116 mas |
| Distance | 279 ± 5 ly (86 ± 2 pc) |
| Details | |
| Mass | 2.54±0.03 M☉ |
| Radius | 3.71 R☉ |
| Luminosity | 68.6+3.5 −3.3 L☉ |
| Surface gravity (log g) | 3.67 cgs |
| Temperature | 8,299+57 −58 K |
| Metallicity [Fe/H] | −0.3 dex |
| Rotational velocity (v sin i) | 80 km/s |
| Age | 310 Myr |
| Other designations | |
| Database references | |
| SIMBAD | data |
This is a chemically-peculiar A-type main-sequence star with a stellar classification of A4 V. It displays an infrared excess, suggesting the presence of an orbiting debris disk at a mean distance of 18.2 AU with a temperature of 180 K. 16 Com has 2.54 times the mass of the Sun and 3.71 times the Sun's radius. The star is 310 million years old with a projected rotational velocity of 80 km/s. It is radiating 67 times the Sun's luminosity from its photosphere at an effective temperature of 8,299 K.