Observation data Epoch J2000.0 Equinox J2000.0 (ICRS) | |
---|---|
Constellation | Fornax |
Right ascension | 03h 42m 14.90238s[1] |
Declination | −31° 56′ 18.0961″[1] |
Apparent magnitude (V) | 5.00[2] |
Characteristics | |
Spectral type | B5 III[3] |
U−B color index | −0.60[2] |
B−V color index | −0.16[2] |
Astrometry | |
Radial velocity (Rv) | +26.00[4] km/s |
Proper motion (μ) | RA: +4.942[1] mas/yr Dec.: +13.326[1] mas/yr |
Parallax (π) | 4.1125 ± 0.2114 mas[1] |
Distance | 790 ± 40 ly (240 ± 10 pc) |
Absolute magnitude (MV) | −2.07[5] |
Details | |
Mass | 5.9±0.2[6] M☉ |
Radius | 6.0[7] R☉ |
Luminosity | 1,291[8] L☉ |
Temperature | 16,230±930[9] K |
Rotational velocity (v sin i) | 185[10] km/s |
Age | 63.1±16.1[6] Myr |
Other designations | |
Database references | |
SIMBAD | data |
Delta Fornacis, Latinized from δ Fornacis, is a solitary,[12] blue-white hued star near the middle of the southern constellation of Fornax. With an apparent visual magnitude of 5.00,[2] it is faintly visible to the naked eye at night. The star has an annual parallax shift of 4.1 mas,[1] indicating it lies at a distance of approximately 790 light years from the Sun. It is drifting further away with a radial velocity of +26 km/s.[4]
The stellar classification of Delta Fornacis is B5 III,[3] matching an evolved B-type giant star. It has an angular diameter of 0.215±0.015 mas,[9] which, at the estimated distance of the star, yields a physical size of around 6 times the radius of the Sun.[7] Around 63 million years old,[6] the star is spinning rapidly with a projected rotational velocity of 185 km/s.[10] It has an estimated 5.9[6] times the Sun's mass and radiates 1,291[8] times the solar luminosity from its outer atmosphere at an effective temperature of 16,230 K.[9]
GaiaDR2
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