V415 Carinae
| Observation data Epoch J2000.0 Equinox J2000.0 (ICRS) | |
|---|---|
| Constellation | Carina |
| Right ascension | 06h 49m 51.31414s |
| Declination | −53° 37′ 20.8182″ |
| Apparent magnitude (V) | +4.40 |
| Characteristics | |
| Spectral type | G6II + A1V |
| U−B color index | +0.61 |
| B−V color index | +0.92 |
| R−I color index | +0.45 |
| Variable type | EA |
| Astrometry | |
| Radial velocity (Rv) | 26.0 ± 0.9 km/s |
| Proper motion (μ) | RA: −1.99 mas/yr Dec.: 17.58 mas/yr |
| Parallax (π) | 5.99±0.18 mas |
| Distance | 182 pc |
| Absolute magnitude (MV) | –1.58 |
| Orbit | |
| Period (P) | 195.245 days |
| Eccentricity (e) | 0.00585 |
| Inclination (i) | 82.7° |
| Semi-amplitude (K1) (primary) | 24.2535 km/s |
| Semi-amplitude (K2) (secondary) | 38.6 km/s |
| Details | |
| A | |
| Mass | 3.14 M☉ |
| Radius | 31.3 R☉ |
| Luminosity | 537 L☉ |
| Surface gravity (log g) | 1.94 cgs |
| Temperature | 4,981 K |
| B | |
| Mass | 1.98 M☉ |
| Radius | 1.9 R☉ |
| Luminosity | 25 L☉ |
| Surface gravity (log g) | 4,18 cgs |
| Temperature | 9,388 K |
| Metallicity | −0.04 |
| Other designations | |
| A Carinae, V415 Car, CCDM J06499-5337, CD−53°1613, CPD−53°1168, GC 8972, GSC 08536-00794, HD 50337, HIP 32761, HR 2554, PPM 335506, SAO 234737, TYC 8536-794-1 | |
| Database references | |
| SIMBAD | data |
V415 Carinae, also known as HR 2554 and A Carinae, is an eclipsing spectroscopic binary of the Algol type in the constellation of Carina whose apparent visual magnitude varies by 0.06 magnitude and is approximately 4.39 at maximum brightness. It is easily visible to the naked eye of a person far from brightly-lit urban ares. Its primary is a G-type bright giant star and its secondary is an A-type main-sequence star. It is approximately 553 light-years from Earth.
It had the bayer designation B Puppis by Nicolas Louis de Lacaille before Benjamin Gould included it in Carina and redesignated as such.