HD 53811
| Observation data Epoch J2000 Equinox J2000 | |
|---|---|
| Constellation | Puppis |
| Right ascension | 07h 03m 53.60846s |
| Declination | −49° 35′ 02.1009″ |
| Apparent magnitude (V) | 4.92 |
| Characteristics | |
| Spectral type | A4IV |
| U−B color index | +0.12 |
| B−V color index | +0.14 |
| Astrometry | |
| Radial velocity (Rv) | +26.80 km/s |
| Proper motion (μ) | RA: −52.78 mas/yr Dec.: +140.27 mas/yr |
| Parallax (π) | 16.51±0.42 mas |
| Distance | 198 ± 5 ly (61 ± 2 pc) |
| Absolute magnitude (MV) | 1.01 |
| Details | |
| Mass | 2.02 M☉ |
| Radius | 2.6 R☉ |
| Luminosity | 33.04 L☉ |
| Surface gravity (log g) | 3.95 cgs |
| Temperature | 8,396 K |
| Rotational velocity (v sin i) | 59 km/s |
| Other designations | |
| H Puppis, CD−49°2587, GC 9348, GSC 08126-02550, HIP 34059, HR 2672, HD 53811, SAO 218427 | |
| Database references | |
| SIMBAD | data |
HD 53811 is a class A4IV (white subgiant) star in the constellation Puppis. Its apparent magnitude is 4.92 and it is approximately 198 light years away based on parallax.