HD 48948

HD 48948
Observation data
Epoch J2000      Equinox J2000
Constellation Lynx
Right ascension 06h 49m 57.57s[1]
Declination +60° 20′ 14.53″[1]
Apparent magnitude (V) 8.58[2]
Characteristics
Evolutionary stage Main sequence star
Spectral type K3V[3]
Apparent magnitude (J) 6.33±0.02[2]
Apparent magnitude (H) 5.73±0.02[2]
Apparent magnitude (K) 5.61±0.02[2]
B−V color index 1.21[2]
Astrometry
Radial velocity (Rv)−52.061±0.0020[3] km/s
Proper motion (μ) RA: 253.401±0.020 mas/yr[3]
Dec.: 410.798±0.017 mas/yr[3]
Parallax (π)59.393 ± 0.025 mas[2]
Distance54.91 ± 0.02 ly
(16.837 ± 0.007 pc)
Absolute magnitude (MV)7.46±0.05[4]
Details[2]
Mass0.686+0.020
−0.013 M☉
Radius0.679±0.004 R☉
Luminosity0.156[5] L☉
Temperature4593±60 K
Metallicity [Fe/H]−0.21±0.03 dex
Rotation43.45+1
−0.71 d
Rotational velocity (v sin i)<2 km/s
Age11.48+1.93
−4.67 Gyr
Other designations
BD+60° 1003, Gaia DR3 1003351437484254464, HIP 32769, TYC 4097-1471-1, 2MASS J06495699+6020077
Database references
SIMBADdata

HD 48948 is a K-type main-sequence star located in the constellation Lynx, approximately 55 light years away, based on a parallax of 59.393 mas. At an apparent magnitude of 8.58, it is too faint to be seen with the naked eye.[2]

It has a stellar classification of K3V, which classifies it as a main sequence star (like our Sun) fusing atoms of hydrogen into helium at its core. Estimated to be 11.5 billion years old, HD 48948 has 0.68 times the mass and radius of the Sun. Its surface has an effective temperature of 4,593 K,[2] giving it the orange glow of a K-type star.[6]

  1. ^ a b Vallenari, A.; et al. (Gaia collaboration) (2023). "Gaia Data Release 3. Summary of the content and survey properties". Astronomy and Astrophysics. 674: A1. arXiv:2208.00211. Bibcode:2023A&A...674A...1G. doi:10.1051/0004-6361/202243940. S2CID 244398875. Gaia DR3 record for this source at VizieR.
  2. ^ a b c d e f g h i Dalal, S.; et al. (37) (24 June 2024). "Trio of super-Earth candidates orbiting K-dwarf HD 48948: a new habitable zone candidate". Monthly Notices of the Royal Astronomical Society. 531 (4): 4464–4481. doi:10.1093/mnras/stae1367. hdl:10023/30204. Retrieved 9 July 2024.
  3. ^ a b c "HD 48948". SIMBAD. Centre de données astronomiques de Strasbourg. Retrieved 9 July 2024.
  4. ^ Cite error: The named reference geneva was invoked but never defined (see the help page).
  5. ^ Cite error: The named reference tycho-gaia was invoked but never defined (see the help page).
  6. ^ "The Colour of Stars", Australia Telescope, Outreach and Education, Commonwealth Scientific and Industrial Research Organisation, December 21, 2004, archived from the original on 2013-12-03, retrieved 2012-01-16