Observation data Epoch J2000 Equinox J2000 | |
---|---|
Constellation | Puppis |
Right ascension | 07h 03m 53.60846s [1] |
Declination | −49° 35′ 02.1009″ [1] |
Apparent magnitude (V) | 4.92 [2] |
Characteristics | |
Spectral type | A4IV [3] |
U−B color index | +0.12 [4] |
B−V color index | +0.14 [5] |
Astrometry | |
Radial velocity (Rv) | +26.80 [6] km/s |
Proper motion (μ) | RA: −52.78 [1] mas/yr Dec.: +140.27 [1] mas/yr |
Parallax (π) | 16.51±0.42 mas [1] |
Distance | 198 ± 5 ly (61 ± 2 pc) |
Absolute magnitude (MV) | 1.01 [2] |
Details | |
Mass | 2.02 [7] M☉ |
Radius | 2.6 [7] R☉ |
Luminosity | 33.04 [2] L☉ |
Surface gravity (log g) | 3.95 [8] cgs |
Temperature | 8,396 [8] K |
Rotational velocity (v sin i) | 59 [3] 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 [3] (white subgiant) star in the constellation Puppis. Its apparent magnitude is 4.92 [2] and it is approximately 198 light years away based on parallax. [1]