Delta Fornacis

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]

δ Fornacis

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
δ For, CD−32°1430, FK5 133, HD 23227, HIP 17304, HR 1134, SAO 194467[11]
Database references
SIMBAD	data

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]