Eta Apodis
Eta Apodis, Latinized from η Apodis, is a star in the southern circumpolar constellation Apus. Based upon parallax measurements from the Hipparcos mission, it is approximately 141 light-years (43 parsecs) from Earth. With an apparent visual magnitude of +4.9, it can be viewed with the naked eye from the southern hemisphere.
| Observation data Epoch J2000 Equinox J2000 | |
|---|---|
| Constellation | Apus |
| Right ascension | 14h 18m 13.89774s |
| Declination | −81° 00′ 27.9300″ |
| 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 |
| Astrometry | |
| Radial velocity (Rv) | −9.4 km/s |
| Proper motion (μ) | RA: −19.854 ± 0.227 mas/yr Dec.: −65.413 ± 0.222 mas/yr |
| Parallax (π) | 23.1651 ± 0.1430 mas |
| Distance | 140.8 ± 0.9 ly (43.2 ± 0.3 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 | |
| Database references | |
| SIMBAD | data |
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