HD 50554

HD 50554
Observation data
Epoch J2000.0      Equinox J2000.0
Constellation Gemini
Right ascension 06h 54m 42.82615s[1]
Declination +24° 14′ 44.0057″[1]
Apparent magnitude (V) +6.84[2]
Characteristics
Spectral type F8V[3]
B−V color index 0.582±0.008[2]
Astrometry
Radial velocity (Rv)−3.77±0.13[1] km/s
Proper motion (μ) RA: −35.839 mas/yr[1]
Dec.: −96.668 mas/yr[1]
Parallax (π)32.1855 ± 0.0242 mas[1]
Distance101.34 ± 0.08 ly
(31.07 ± 0.02 pc)
Absolute magnitude (MV)4.46[2]
Details
Mass1.06±0.03[4] M☉
Radius1.07±0.03[4] R☉
Luminosity1.37±0.01[4] L☉
Surface gravity (log g)4.4±0.04[4] cgs
Temperature6,036±52[4] K
Metallicity [Fe/H]0.05±0.06[5] dex
Rotational velocity (v sin i)2.3[5] km/s
Age3.3±1.4 Gyr[4]
2.1±1.6[5] Gyr
Other designations
BD+24°1451, GC 9043, HD 50554, HIP 33212, SAO 78855, GSC 01894-01961[6]
Database references
SIMBADdata

HD 50554 is a single,[7] Sun-like[8] star with an exoplanetary companion in the northern constellation of Gemini. It has an apparent visual magnitude of +6.84,[2] which makes it a 7th magnitude star; it is not visible to the naked eye, but can be viewed with binoculars or a telescope. The system is located at a distance of 101 light-years (31 parsecs) from the Sun based on parallax, but is drifting closer with a radial velocity of −4 km/s.[1]

This is a yellow-white hued F-type main-sequence star with a stellar classification of F8V.[3] Age estimates put it at around 2–3 billion years old. It has a Sun-like metallicity a low level of chromospheric activity[9] and is spinning with a projected rotational velocity of 2.3 km/s.[5] The star has a slightly higher mass and larger radius than the Sun. It is radiating 137% of the luminosity of the Sun from its photosphere at an effective temperature of 6,036 K.[4]

  1. ^ a b c d e f Cite error: The named reference GaiaDR3 was invoked but never defined (see the help page).
  2. ^ a b c d Cite error: The named reference Anderson_Francis_2012 was invoked but never defined (see the help page).
  3. ^ a b Cite error: The named reference Fischer2002 was invoked but never defined (see the help page).
  4. ^ a b c d e f g Cite error: The named reference Bonfanti2015 was invoked but never defined (see the help page).
  5. ^ a b c d Cite error: The named reference Chavero_et_al_2019 was invoked but never defined (see the help page).
  6. ^ Cite error: The named reference SIMBAD was invoked but never defined (see the help page).
  7. ^ Cite error: The named reference Baines_et_al_2010 was invoked but never defined (see the help page).
  8. ^ Cite error: The named reference Dodson-Robinson_et_al_2016 was invoked but never defined (see the help page).
  9. ^ Cite error: The named reference Perrier2003 was invoked but never defined (see the help page).