HD 76151

HD 76151
Observation data
Epoch J2000.0      Equinox J2000.0 (ICRS)
Constellation Hydra
Right ascension 08h 54m 17.9471s[1]
Declination −05° 26′ 04.054″[1]
Apparent magnitude (V) 6.00[2]
Characteristics
Spectral type G2V[3]
U−B color index +0.22[4]
B−V color index +0.67[4]
R−I color index +0.21[4]
Astrometry
Radial velocity (Rv)31.99±0.12[1] km/s
Proper motion (μ) RA: −413.648 mas/yr[1]
Dec.: 30.619 mas/yr[1]
Parallax (π)59.3595 ± 0.0408 mas[1]
Distance54.95 ± 0.04 ly
(16.85 ± 0.01 pc)
Absolute magnitude (MV)4.81[5]
Details[3]
Mass1.053+0.056
−0.068 M☉
Radius1.125+0.035
−0.011 R☉
Surface gravity (log g)4.35±0.18 cgs
Temperature5,790±170 K
Metallicity [Fe/H]0.24±0.09 dex
Rotation15 days[6]
Rotational velocity (v sin i)3[7] km/s
Age5.5+2.5
−2.1 Gyr
Other designations
BD−04 2490, GC 12307, GJ 327, HD 76151, HIP 43726, HR 3538, SAO 136389, PPM 191823, LTT 3283, NLTT 20504[2]
Database references
SIMBADdata

HD 76151 is a high proper motion, G-type main-sequence star and solar analog[3] in the constellation of Hydra 54.95 light-years from Earth.[1] It has an apparent visual magnitude of approximately 6.00.[2] An infrared excess has been detected around this star, most likely indicating the presence of a circumstellar disk at a radius of 7.9 AU. The temperature of this dust is 99 K.[8]

HD 76151 has an estimated age of about 5.5 billion years old, with estimates ranging from 3.4 to 9.6 billion years. The star has a temperature of around 5,790 K (5,520 °C; 9,960 °F). The radius of HD 76151 is 1.125 solar radii (783,000 km) based on spectroscopic observations, though Gaia DR3 estimates a radius of 0.977 solar radii (680,000 km).[3]

  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 Cite error: The named reference sb0 was invoked but never defined (see the help page).
  3. ^ a b c d Cite error: The named reference Senturk2024 was invoked but never defined (see the help page).
  4. ^ a b c HR 3538, database entry, The Bright Star Catalogue, 5th Revised Ed. (Preliminary Version), D. Hoffleit and W. H. Warren, Jr., CDS ID V/50. Accessed on line January 20, 2011.
  5. ^ Cite error: The named reference Anderson2012 was invoked but never defined (see the help page).
  6. ^ Cite error: The named reference aaa521_A12 was invoked but never defined (see the help page).
  7. ^ Cite error: The named reference geneva2 was invoked but never defined (see the help page).
  8. ^ Cite error: The named reference aa555_A11 was invoked but never defined (see the help page).