23 Vulpeculae
 Location of 23 Vulpeculae (circled) |
|
| Observation data Epoch J2000 Equinox J2000 |
|
|---|---|
| Constellation | Vulpecula |
| Right ascension | 20h 15m 46.13481s |
| Declination | 27° 48′ 51.2787″ |
| Apparent magnitude (V) | 4.52 |
| Characteristics | |
| Spectral type | K3III Fe-1 |
| U−B color index | +1.11 |
| B−V color index | +1.26 |
| Astrometry | |
| Radial velocity (Rv) | +1.47 km/s |
| Proper motion (μ) |
RA: -34.27 mas/yr Dec.: +6.41 mas/yr |
| Parallax (π) | 9.63 ± 0.46mas |
| Distance | 340 ± 20 ly (104 ± 5 pc) |
| Absolute magnitude (MV) | -0.58 |
| Details | |
| Mass | 2.4 M☉ |
| Luminosity | 272 L☉ |
| Surface gravity (log g) | 0.89 cgs |
| Temperature | 4,429 K |
| Metallicity [Fe/H] | +0.03 dex |
| Rotational velocity (v sin i) | 3.7 km/s |
| Other designations | |
| Database references | |
| SIMBAD | data |
23 Vulpeculae is a class K3III (orange giant) star in a triple star system in the constellation Vulpecula. Its apparent magnitude is 4.52 and it is approximately 339 light years away based on parallax. It has two reported companions; Ab has a separation of 0.11", a magnitude of 6.5, and a period of about 25 years, while B has a separation of 0.26" and a magnitude of 6.94.
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