  | |
| Observation data EpochJ2000.0 EquinoxJ2000.0 (ICRS) | |
|---|---|
| Constellation | Dorado |
| Right ascension | 05h 49m 53.52107s[1] |
| Declination | −66° 54′ 04.2787″[1] |
| Apparent magnitude (V) | 5.11[2] |
| Characteristics | |
| Spectral type | B6 V[3] |
| U−Bcolor index | −0.49[2] |
| B−Vcolor index | −0.14[2] |
| Variable type | SPB[4] |
| Astrometry | |
| Radial velocity (Rv) | +15.5±1.6[5] km/s |
| Proper motion (μ) | RA: −21.81[1]mas/yr Dec.: +37.55[1]mas/yr |
| Parallax (π) | 5.68±0.15 mas[1] |
| Distance | 570 ± 20 ly (176 ± 5 pc) |
| Absolute magnitude (MV) | −0.20[6] |
| Details | |
| Mass | 4.31±0.05[7] M☉ |
| Radius | 3.8±0.6[4] R☉ |
| Luminosity | 556[7] L☉ |
| Surface gravity (log g) | 3.89±0.20[4] cgs |
| Temperature | 13,212[7] K |
| Rotational velocity (v sin i) | 17[7] km/s |
| Age | 210[6] Myr |
| Other designations | |
| ε Dor,CD−66°351,Gaia DR2 4659664312127365632,HD 39844,HIP 27534,HR 2064,SAO 249368,2MASS J05495356-6654041[8] | |
| Database references | |
| SIMBAD | data |
Epsilon Doradus,Latinized from ε Doradus, is a solitary[9] star located in the southernconstellation ofDorado. It is visible to thenaked eye with anapparent visual magnitude of 5.11.[2] Based upon an annualparallax shift of 5.68 mas as measured from Earth, it is located roughly 570 light years from theSun. At that distance, the visual magnitude of the star is diminished by anextinction factor of 0.09 due tointerstellar dust.[6]
This is aB-type main sequence star with astellar classification of B6 V.[3] It is aslowly pulsating B-type star with a mean longitudinalmagnetic field strength of−64±26 G.[4] With 4.31[7] times themass of the Sun and 3.8[4] times theSun's radius, it is about 85% of the way through itsmain sequence lifetime.[7] The star is an estimated 210[6] million years old and is spinning with aprojected rotational velocity of 17 km/s.[7] Epsilon Doradus radiates 556 times thesolar luminosity from itsphotosphere at aneffective temperature of 13,212 K.[7]
