Phi Fornacis

Phi Fornacis

Observation data Epoch J2000      Equinox J2000
Constellation	Fornax
Right ascension	02^h 28^m 01.70338^s [1]
Declination	−33° 48′ 39.7450″ [1]
Apparent magnitude (V)	5.13 [2]
Characteristics
Spectral type	A2.5V [3]
B−V color index	+0.08 [2]
Astrometry
Radial velocity (Rv)	+19.00[4] km/s
Proper motion (μ)	RA: +18.99[2] mas/yr Dec.: +5.13[2] mas/yr
Parallax (π)	21.46 ± 0.27[1] mas
Distance	152 ± 2 ly (46.6 ± 0.6 pc)
Absolute magnitude (MV)	1.79 [5]
Other designations
FK5 2168, GC 2967, HIP 11477, HR 724, HD 15427, SAO 193723 [2]
Database references
SIMBAD	data

Phi Fornacis (φ For) is a class A2.5V^[3] (white main-sequence) star in the constellation Fornax. Its apparent magnitude is 5.13^[2] and it is approximately 152.0 light years away based on parallax.^[1] It shines with a luminosity approximately 16 times that of the Sun and has a surface temperature of 8900 K.^[6] It is around 1.6 times as massive as the Sun and there is evidence of a circumstellar disk.^[7]

References

1. van Leeuwen, F. (2007). "Validation of the new Hipparcos reduction". Astronomy and Astrophysics 474 (2): 653–664. arXiv:0708.1752. Bibcode:2007A&A...474..653V. doi:10.1051/0004-6361:20078357. Vizier catalog entry
2. "Phi Fornacis". SIMBAD Astronomical Database. Retrieved 2016-04-06.
3. Abt, Helmut A.; Morrell, Nidia I. (July 1995), "The relation between Rotational Velocities and Spectral Peculiarities among A-type stars", The Astrophysical Journal Supplement Series 99: 135–172, Bibcode:1995ApJS...99..135A, doi:10.1086/192182
4. Gontcharov, G. A. (November 2006). "Pulkovo Compilation of Radial Velocities for 35 495 Hipparcos stars in a common system". Astronomy Letters 32 (11): 759–771. Bibcode:2006AstL...32..759G. doi:10.1134/S1063773706110065.
5. Absolute magnitude calculated as $M = m + 5 (1 + \log_{10}{p})\!\,$, where $M$ is the star's absolute magnitude, $m$ is the star's apparent magnitude, and $p$ is the star's measured parallax in arcseconds.
6. McDonald, I.; Zijlstra, A. A.; Boyer, M. L. (2012). "Fundamental Parameters and Infrared Excesses of Hipparcos Stars". Monthly Notices of the Royal Astronomical Society 427 (1): 343–57. arXiv:1208.2037. Bibcode:2012MNRAS.427..343M. doi:10.1111/j.1365-2966.2012.21873.x.
7. Chen, Christine H.; Mittal, Tushar; Kuchner, Marc; Forrest, William J.; Lisse, Carey M.; Manoj, P.; Sargent, Benjamin A.; Watson, Dan M. (2014). "The Spitzer Infrared Spectrograph Debris Disk Catalog. I. Continuum Analysis of Unresolved Targets". The Astrophysical Journal Supplement 211 (2): 22. Bibcode:2014ApJS..211...25C. doi:10.1088/0067-0049/211/2/25. 25.