Phi Fornacis

Phi Fornacis
Observation data
Epoch J2000      Equinox J2000
Constellation Fornax
Right ascension 02h 28m 01.70348s[1]
Declination −33° 48′ 39.7382″[1]
Apparent magnitude (V) 5.13[2]
Characteristics
Spectral type A2.5V[3]
B−V color index +0.089±0.003[2]
Astrometry
Radial velocity (Rv)+19.0±4.2[4] km/s
Proper motion (μ) RA: +18.526[1] mas/yr
Dec.: +5.163[1] mas/yr
Parallax (π)21.1604 ± 0.1410 mas[1]
Distance154 ± 1 ly
(47.3 ± 0.3 pc)
Absolute magnitude (MV)1.79[2]
Details
Mass2.11[5] M☉
Radius1.74[6] R☉
Luminosity16.66[2] L☉
Surface gravity (log g)4.27[5] cgs
Temperature9,449±321[5] K
Rotational velocity (v sin i)116.8±0.8[7] km/s
Age238[5] Myr
Other designations
φ For, CD−34°905, FK5 2168, GC 2967, HD 15427, HIP 11477, HR 724, SAO 193723[8]
Database references
SIMBADdata

Phi Fornacis is a single[9] star in the southern constellation of Fornax. It has a white hue and is faintly visible to the naked eye with an apparent visual magnitude of 5.13.[2] The distance to this object is approximately 154 light-years based on parallax,[1] and it is drifting further away with a radial velocity of +19 km/s.[4]

This is an A-type main-sequence star with a stellar classification of A2.5V.[3] Phi Fornacis is 238[5] million years old and is spinning with a projected rotational velocity of 117 km/s.[7] It has 2.1[5] times the mass of the Sun and 1.7[6] times the Sun's radius. The star is radiating 17[2] times the luminosity of the Sun from its photosphere at an effective temperature of 9,449 km/s.[5] It displays an infrared excess, suggesting a circumstellar disk[10] of dust is orbiting the star at a distance of 30.2 AU with a mean temperature of 100 K.[6]

  1. ^ a b c d e f Cite error: The named reference GaiaDR2 was invoked but never defined (see the help page).
  2. ^ a b c d e f Cite error: The named reference Anderson2012 was invoked but never defined (see the help page).
  3. ^ a b Cite error: The named reference Abt1995 was invoked but never defined (see the help page).
  4. ^ a b Cite error: The named reference Gontcharov2006 was invoked but never defined (see the help page).
  5. ^ a b c d e f g Cite error: The named reference David2015 was invoked but never defined (see the help page).
  6. ^ a b c Cite error: The named reference Cotten2016 was invoked but never defined (see the help page).
  7. ^ a b Cite error: The named reference aaa531_A143 was invoked but never defined (see the help page).
  8. ^ Cite error: The named reference SIMBAD was invoked but never defined (see the help page).
  9. ^ Cite error: The named reference Eggleton2008 was invoked but never defined (see the help page).
  10. ^ Cite error: The named reference Chen2014 was invoked but never defined (see the help page).