Gamma Trianguli
| Observation data Epoch J2000 Equinox J2000 | |
|---|---|
| Constellation | Triangulum |
| Right ascension | 02h 17m 18.86703s |
| Declination | +33° 50′ 49.8950″ |
| Apparent magnitude (V) | +4.01 |
| Characteristics | |
| Spectral type | A1Vnn |
| U−B color index | +0.02 |
| B−V color index | +0.02 |
| Astrometry | |
| Radial velocity (Rv) | +9.9 km/s |
| Proper motion (μ) | RA: 44.64 mas/yr Dec.: –52.57 mas/yr |
| Parallax (π) | 29.04±0.25 mas |
| Distance | 112.3 ± 1.0 ly (34.4 ± 0.3 pc) |
| Absolute magnitude (MV) | +1.35 |
| Details | |
| Mass | 2.7 M☉ |
| Radius | 2.09±0.04 R☉ |
| Luminosity | 28±1 L☉ |
| Temperature | 9,210±100 K |
| Rotational velocity (v sin i) | 254 km/s |
| Age | 300 Myr |
| Other designations | |
| Apdu, γ Tri, 9 Tri, BD+33 397, FK5 79, HD 14055, HIP 10670, HR 664, SAO 55427 | |
| Database references | |
| SIMBAD | data |
Gamma Trianguli, also named Apdu, is a star in the constellation Triangulum located approximately 112 light years from Earth. It has an apparent magnitude of +4.01 and forms an optical (line-of-sight) triple with Delta Trianguli and 7 Trianguli.