28 Leonis Minoris

28 Leonis Minoris
Observation data
Epoch J2000.0      Equinox J2000.0 (ICRS)
Constellation Leo Minor
Right ascension 10h 24m 08.60391s[1]
Declination +33° 43′ 06.7069″[1]
Apparent magnitude (V) 5.50±0.01[2]
Characteristics
Spectral type K1 III[3]
B−V color index +1.18[4]
Astrometry
Radial velocity (Rv)−24.3±0.2[5] km/s
Proper motion (μ) RA: −14.460 mas/yr
Dec.: −2.770 mas/yr
Parallax (π)6.7945 ± 0.091 mas[1]
Distance480 ± 6 ly
(147 ± 2 pc)
Absolute magnitude (MV)−0.05[6]
Details
Mass1.19[7] M☉
Radius22.6[1] R☉
Luminosity207[1] L☉
Surface gravity (log g)1.80[7] cgs
Temperature4,580±122[8] K
Metallicity [Fe/H]−0.04[1] dex
Age202[1] Myr
Other designations
28 LMi, AG+33°1015, BD+34°2123, GC 14280, HD 90040, HIP 50935, HR 4081, SAO 62019[9]
Database references
SIMBADdata

28 Leonis Minoris (28 LMi) is a solitary,[10] orange hued star located in the northern constellation Leo Minor, the lesser lion. It has an apparent magnitude of 5.5,[2] allowing it to be faintly visible to the naked eye. Based on parallax measurements from the Gaia satellite, it is estimated to be 480 light years distant.[1] 28 LMi is approaching the Solar System with a heliocentric radial velocity of −24 km/s.[5] At its current distance, the star brightness is diminished by 0.14 magnitudes due to interstellar dust. [11]

This is a population II[12] giant star with a stellar classification of K1 III.[3] It has a comparable mass to the Sun[7] but has expanded to 22.6 times its girth.[1] It radiates 207 times the luminosity of the Sun[1] from its photosphere at an effective temperature of 4,580 K.[8] It has an iron abundance 90% of the Sun's, making it slightly metal deficient.[1]

  1. ^ a b c d e f g h i j k Cite error: The named reference GaiaDR3 was invoked but never defined (see the help page).
  2. ^ a b Cite error: The named reference Tycho2000 was invoked but never defined (see the help page).
  3. ^ a b Cite error: The named reference Adams1935 was invoked but never defined (see the help page).
  4. ^ Cite error: The named reference Haggkvist1970 was invoked but never defined (see the help page).
  5. ^ a b Cite error: The named reference Famaey2005 was invoked but never defined (see the help page).
  6. ^ Cite error: The named reference Anderson2012 was invoked but never defined (see the help page).
  7. ^ a b c Cite error: The named reference Anders2019 was invoked but never defined (see the help page).
  8. ^ a b Cite error: The named reference Stassun2019 was invoked but never defined (see the help page).
  9. ^ Cite error: The named reference SIMBAD was invoked but never defined (see the help page).
  10. ^ Cite error: The named reference Eggleton2008 was invoked but never defined (see the help page).
  11. ^ Cite error: The named reference Gontcharov2017 was invoked but never defined (see the help page).
  12. ^ Cite error: The named reference Bartkevicius1997 was invoked but never defined (see the help page).