HIP 11952

HIP 11952
Observation data
Epoch J2000      Equinox J2000
Constellation Cetus[1]
Right ascension 02h 34m 11.04689s[2]
Declination −12° 23′ 3.4570″[2]
Apparent magnitude (V) 9.85
Characteristics
Spectral type F2V-IV[3][4][note 1]
Apparent magnitude (B) 10.18[2]
Apparent magnitude (V) 9.85[2]
Apparent magnitude (J) 8.790[2]
Apparent magnitude (H) 8.516[2]
Apparent magnitude (K) 8.457[2]
Astrometry
Radial velocity (Rv)23.62[2] km/s
Proper motion (μ) RA: 57.27[2] mas/yr
Dec.: -187.74[2] mas/yr
Parallax (π)8.93[2] mas
Distance376.1 ly
(115.3[3] pc)
Details
Mass0.83 ± 0.05[4] M☉
Radius1.6 ± 0.1[3] R☉
Temperature6040 ± 210[4] K
Metallicity [Fe/H]–1.95 ± 0.09[3][note 2] dex
Age12.8 ± 2.6[4] Gyr
Other designations
LP 710-89, BD-13° 482, HD 16031, HIP 11952, NLTT 8361, PPM 211702, SAO 148474, TYC 5288-192-1[2]
Database references
SIMBADdata

HIP 11952 is a star in the Milky Way galaxy, located 375 light-years away from the Sun. While the spectral lines strongly indicate that the star is of spectral type F2V-IV, previous analyses have stated that the star is a G8III giant star and an F0V main-sequence star.[3] Located in the constellation Cetus, the star has a metallicity only 1% that of the Sun. It is nearing the end of its lifetime on the main sequence, and will soon begin the transition into a red giant.[5]

  1. ^ Staff, Space.com (28 March 2012). "Ancient Alien Planets Shake Up View of Early Universe". Space.com. Space.com. Retrieved March 29, 2012.
  2. ^ a b c d e f g h i j k l "HD 16031". SIMBAD. Centre de données astronomiques de Strasbourg. Retrieved March 29, 2012.
  3. ^ a b c d e Setiawan, J.; Roccatagliata, V.; Fedele, D.; Henning, Th.; Pasquali, A.; Rodríguez-Ledesma, M. V.; Caffau, E.; Seemann, U.; Klement, R. J. (March 2012). "Planetary companions around the metal-poor star HIP 11952" (PDF). Astronomy and Astrophysics. 540: A141. arXiv:1208.4000. Bibcode:2012A&A...540A.141S. doi:10.1051/0004-6361/201117826. S2CID 53700801.
  4. ^ a b c d Schneider, Jean (23 March 2012). "Notes for Star HIP 11952". Extrasolar Planets Encyclopaedia. Archived from the original on May 5, 2012. Retrieved March 29, 2012.
  5. ^ Cite error: The named reference natgeo-news was invoked but never defined (see the help page).


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