 Snapshot of 78 Aqr from Digitized Sky Survey project | |
| Observation data Epoch J2000 Equinox J2000 | |
|---|---|
| Constellation | Aquarius |
| Right ascension | 22h 54m 34.12178s [1] |
| Declination | −07° 12′ 16.6490″ [1] |
| Apparent magnitude (V) | 6.181 [2] |
| Characteristics | |
| Spectral type | K2III [3] |
| Astrometry | |
| Radial velocity (Rv) | 11.63±0.14 [1] km/s |
| Proper motion (μ) | RA: −14.811 [1] mas/yr Dec.: −34.596 [1] mas/yr |
| Parallax (π) | 5.4411±0.0498 mas [1] |
| Distance | 599 ± 5 ly (184 ± 2 pc) |
| Details | |
| Radius | 21.775 [4] R☉ |
| Luminosity | 203 [1] L☉ |
| Surface gravity (log g) | 1.72 [5] cgs |
| Temperature | 4,400±30 [4] K |
| Metallicity [Fe/H] | −0.01 [5] dex |
| Other designations | |
| BD−07°5886, HD 216637, HIP 113127, HR 8710, SAO 146382 [6] | |
| Database references | |
| SIMBAD | data |
78 Aquarii (abbreviated 78 Aqr) is a star in the constellation of Aquarius. 78 Aquarii is its Flamsteed designation. Based on stellar parallax measurements made by Gaia , it is located about 600 light-years (180 parsecs) from the Sun.
78 Aquarii has a spectral type of K2III, [3] indicating a giant star with a reddish color. Its apparent magnitude is 6.18, [2] indicating it is not visible to the sky for all but the best viewing conditions. At its surface, its temperature is estimated to be roughly 4,400 K. [4] It has no known exoplanets.
