HD 93385
HD 93385 is a star in the southern constellation of Vela. At an apparent visual magnitude of 7.5, it is too faint to be seen with the unaided eye. Parallax measurements made using the Gaia spacecraft show an annual shift of 23.15 mas. This is equivalent to a physical separation of around 141 light years from the Sun. It is drifting further away with a radial velocity of +47.8 km/s.
| Observation data Epoch J2000 Equinox J2000 | |
|---|---|
| Constellation | Vela |
| Right ascension | 10h 46m 15.116s |
| Declination | –41° 27′ 51.73″ |
| Apparent magnitude (V) | 7.486 |
| Characteristics | |
| Spectral type | G2/G3 V |
| B−V color index | 0.595 |
| Astrometry | |
| Radial velocity (Rv) | +47.80±0.61 km/s |
| Proper motion (μ) | RA: −48.135 mas/yr Dec.: −54.551 mas/yr |
| Parallax (π) | 23.1489 ± 0.018 mas |
| Distance | 140.9 ± 0.1 ly (43.20 ± 0.03 pc) |
| Details | |
| Mass | 1.07 M☉ |
| Radius | 1.17 R☉ |
| Luminosity | 1.42 L☉ |
| Surface gravity (log g) | 4.08±0.11 cgs |
| Temperature | 5,823±35 K |
| Metallicity [Fe/H] | –0.05±0.03 dex |
| Age | 4.13 Gyr |
| Other designations | |
| Database references | |
| SIMBAD | data |
This is an ordinary G-type main sequence star with a stellar classification of G2/G3 V. The physical properties of HD 93385 are similar to those of the Sun; it is slightly larger with 107% of the Sun's mass, 117% of the radius, and 142% of the luminosity. The abundance of elements, other than hydrogen and helium, is nearly the same as in the Sun. It is currently at an unusual low level of surface activity and thus is a candidate Maunder minimum analog.
A physical companion star with an apparent visual magnitude of 12.29 is located at an angular separation of 10.32 arcseconds (equivalent to projected separation of 448 AU) along a position angle of 288°. It is estimated to have 45% of the mass of the Sun. A 2015 survey ruled out the existence of any additional stellar companions at projected distances from 12 to 352 astronomical units.