CD-73°375
| Observation data Epoch J2000.0 Equinox J2000.0 | |
|---|---|
| Constellation | Volans |
| A | |
| Right ascension | 07h 35m 21.656s |
| Declination | −74° 16′ 29.83″ |
| Apparent magnitude (V) | 7.08 |
| B | |
| Right ascension | 07h 35m 22.036s |
| Declination | −74° 16′ 30.96″ |
| Apparent magnitude (V) | 7.02 |
| Characteristics | |
| Evolutionary stage | subgiant |
| Spectral type | B9IV + B9IV |
| Astrometry | |
| A | |
| Radial velocity (Rv) | +13.0 km/s |
| Proper motion (μ) | RA: −2.527±0.040 mas/yr Dec.: 21.791±0.033 mas/yr |
| Parallax (π) | 3.9430±0.0292 mas |
| Distance | 827 ± 6 ly (254 ± 2 pc) |
| B | |
| Radial velocity (Rv) | +10.8 km/s |
| Proper motion (μ) | RA: −3.650±0.032 mas/yr Dec.: 18.164±0.034 mas/yr |
| Parallax (π) | 3.9907 ± 0.0274 mas |
| Distance | 817 ± 6 ly (251 ± 2 pc) |
| Details | |
| A | |
| Mass | 3.5 M☉ |
| Radius | 3.6 R☉ |
| Luminosity | 582 L☉ |
| Surface gravity (log g) | 3.96 cgs |
| Temperature | 13,005 K |
| Metallicity [Fe/H] | −0.15 dex |
| Rotational velocity (v sin i) | 17 km/s |
| B | |
| Mass | 3.4 M☉ |
| Surface gravity (log g) | 3.93 cgs |
| Temperature | 12,640 K |
| Metallicity [Fe/H] | −0.15 dex |
| Other designations | |
| CD−73°375, HIP 36914, WDS J07354-7417 | |
| A: HD 62153, HR 2979 | |
| B: HD 62154, HR 2980 | |
| Database references | |
| SIMBAD | data |
| A | |
| B | |
CD-73°375 is a binary star located in the constellation Volans about 820 light years away. The two components, HR 2979 and HR 2980, are separated by two arc-seconds. The pair has a combined apparent magnitude of 6.34. It has a radial velocity of about 13 km/s, which means it drifting away from the Solar System.