IRAS 08544-4431 Warm circumstellar material around IRAS 08544-4431 Credit: ESO Observation data Epoch J2000.0 Equinox J2000.0 Constellation Vela Right ascension 08h 56m 14.181s[1] Declination –44° 43′ 10.71″[1] Apparent magnitude (V) 9.01 - 9.19[2] Characteristics Spectral type F3e[3] Variable type RV[2] Astrometry Radial velocity (Rv) +62.5[3] km/s Proper motion (μ) RA: –7.8[1] mas/yr Dec.: +9.5[1] mas/yr Distance 1,980[4] pc Orbit[3] Period (P) 499 ± 3 days Eccentricity (e) 0.14 ± 0.02 Argument of periastron (ω) (secondary) 26 ± 10° Semi-amplitude (K1) (primary) 7.2 ± 0.2 km/s Details A Mass <0.55[5] M☉ Luminosity 5,000[3] L☉ Surface gravity (log g) 1.5[5] cgs Temperature 7,250[5] K Metallicity [Fe/H] −0.5[3] dex B Mass 0.3[3] M☉ Temperature 4,000[6] K Other designations V390 Velorum, CD−44 4961, IRAS 08544-4431, 2MASS J08561419-4443107 Database references SIMBAD data