HD 63584
Star in the constellation Volans
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HD 63584 (HR 3038) is a solitary star in the southern circumpolar constellation Volans. With an apparent magnitude of 6.15,[2] it is barely visible to the naked eye under ideal conditions. The star is located 420 light years[1] away based on parallax, but is drifting away with a radial velocity of 10.4 km/s.[5]
| Observation data Epoch J2000 Equinox J2000 | |
|---|---|
| Constellation | Volans |
| Right ascension | 07h 44m 13.00s[1] |
| Declination | –69° 49′ 17.80″[1] |
| Apparent magnitude (V) | 6.15±0.01[2] |
| Characteristics | |
| Spectral type | A0 IV/V[3] |
| U−B color index | –0.09[4] |
| B−V color index | –0.06[4] |
| Astrometry | |
| Radial velocity (Rv) | 10.4±1.1[5] km/s |
| Proper motion (μ) | RA: –41.901[1] mas/yr Dec.: 9.492[1] mas/yr |
| Parallax (π) | 7.7630±0.0578 mas[1] |
| Distance | 420 ± 3 ly (128.8 ± 1.0 pc) |
| Absolute magnitude (MV) | +0.68[6] |
| Details | |
| Mass | 2.58±0.05[7] M☉ |
| Radius | 3.09±0.37[8] R☉ |
| Luminosity | 60±6[7] L☉ |
| Surface gravity (log g) | 3.84±0.29[8] cgs |
| Temperature | 9,954±46[7] K |
| Metallicity | 71% solar |
| Metallicity [Fe/H] | –0.15[9] dex |
| Rotational velocity (v sin i) | 19[10] km/s |
| Age | 256±23[7] Myr |
| Other designations | |
| 18 G. Volantis, CD–69 475, HD 63584, HIP 37720, HR 3038, SAO 249943[11] | |
| Database references | |
| SIMBAD | data |
HD 63584 has a classification of "A0 IV/V",[3] which states it is an A0 star with the characteristics of a main sequence and subgiant star. It has 2.58 times the Sun's mass,[7] but a radius around 3 times that of the Sun.[8] HD 63584 radiates at 60 times the Sun's luminosity[7] from its photosphere at an effective temperature of 9,954 K,[7] which gives it the blueish-white hue of an A0 star. Despite the "IV" part of the classification, HD 63584 is only 256 million years old,[7] having completed only 59.6% of its main sequence lifetime.[7]