Eta Apodis
| Observation data Epoch J2000 Equinox J2000 | |
|---|---|
| Constellation | Apus |
| Right ascension | 14h 18m 13.89590s |
| Declination | −81° 00′ 27.9306″ |
| Apparent magnitude (V) | +4.89 |
| Characteristics | |
| Spectral type | A2MA7-F2 or A2(m) CrEu |
| U−B color index | +0.11 |
| B−V color index | +0.25 |
| Variable type | α2 CVn |
| Astrometry | |
| Radial velocity (Rv) | −9.4 km/s |
| Proper motion (μ) | RA: −19.981 mas/yr Dec.: −65.222 mas/yr |
| Parallax (π) | 22.9229±0.1180 mas |
| Distance | 142.3 ± 0.7 ly (43.6 ± 0.2 pc) |
| Absolute magnitude (MV) | +1.76 |
| Details | |
| Mass | 1.77 M☉ |
| Radius | 2.13 R☉ |
| Luminosity | 15.5 L☉ |
| Temperature | 7,860±20 K |
| Rotational velocity (v sin i) | 17.2±0.3 km/s |
| Age | 250±200 Myr |
| Other designations | |
| CD−80 706, FK5 3129, HD 123998, HIP 69896, HR 5303, SAO 258693 | |
| Database references | |
| SIMBAD | data |
Eta Apodis is a star in the southern circumpolar constellation Apus. Its identifier is a Bayer designation that is Latinized from η Apodis, and abbreviated Eta Aps or η Aps, respectively. Based upon parallax measurements from Gaia Data Release 3, it is 142 light-years (44 parsecs) from Earth. It is drifting closer with a heliocentric radial velocity of −9 km/s. With an apparent visual magnitude of +4.9, it can be viewed with the naked eye from the southern hemisphere.