15 Leonis Minoris

15 Leonis Minoris
Location of 15 Leo Minoris (circled)
Observation data
Epoch J2000.0      Equinox J2000.0
Constellation Ursa Major[1]
Right ascension 09h 48m 35.37130s[2]
Declination +46° 01′ 15.6338″[2]
Apparent magnitude (V) 5.08[3]
Characteristics
Spectral type G0 IV-V[4]
U−B color index +0.175[5]
B−V color index 0.619±0.007[3]
Astrometry
Radial velocity (Rv)5.20±0.09[6] km/s
Proper motion (μ) RA: 221.788[2] mas/yr
Dec.: −92.816[2] mas/yr
Parallax (π)52.8994 ± 0.1260 mas[2]
Distance61.7 ± 0.1 ly
(18.90 ± 0.05 pc)
Absolute magnitude (MV)3.75[7]
Details
Mass1.15[8] M☉
Radius1.52[9] R☉
Luminosity2.912±0.010[2] L☉
Surface gravity (log g)4.04[4] cgs
Temperature5,859[4] K
Metallicity [Fe/H]0.01[4] dex
Rotational velocity (v sin i)3.97[10] km/s
Age9.3[11] Gyr
Other designations
15 LMi, BD+46°1551, FK5 1255, GJ 368, HD 84737, HIP 48113, HR 3881, SAO 43046[12]
Database references
SIMBADdata

15 Leonis Minoris is the Flamsteed designation for a single[13] star in the northern circumpolar constellation of Ursa Major. It has an apparent visual magnitude of 5.08,[3] making it a fifth magnitude star that is visible to the naked eye. Based on parallax measurements, it is located at a distance of 61.7 light years from the Sun. The star has been examined for an infrared excess, but none was detected.[14]

This star has a stellar classification of G0 IV-V[4] with an age of about 9.3 billion years,[11] which suggests that it is an older G-type main sequence star that may be evolving into a subgiant as the hydrogen at its core runs out. The estimated mass of the star is 15% greater than the Sun's mass,[8] and it is larger in girth than the Sun by +52%.[9] It is spinning with a projected rotational velocity of 4 km/s.[10] The star is radiating almost three[2] times the luminosity of the Sun from its photosphere at an effective temperature of 5,859 K,[4] giving it the yellow-hued glow of a G-type star.[15]

  1. ^ Cite error: The named reference discordances was invoked but never defined (see the help page).
  2. ^ a b c d e f g Cite error: The named reference GaiaDR2 was invoked but never defined (see the help page).
  3. ^ a b c Cite error: The named reference Anderson_Francis_2012 was invoked but never defined (see the help page).
  4. ^ a b c d e f Cite error: The named reference aj132_1_161 was invoked but never defined (see the help page).
  5. ^ Cite error: The named reference Mermilliod1986 was invoked but never defined (see the help page).
  6. ^ Cite error: The named reference apjss141 was invoked but never defined (see the help page).
  7. ^ Cite error: The named reference apj131 was invoked but never defined (see the help page).
  8. ^ a b Cite error: The named reference apj756_1_46 was invoked but never defined (see the help page).
  9. ^ a b Cite error: The named reference takeda was invoked but never defined (see the help page).
  10. ^ a b Cite error: The named reference MartínezArnáiz2010 was invoked but never defined (see the help page).
  11. ^ a b Cite error: The named reference Ballering2013 was invoked but never defined (see the help page).
  12. ^ Cite error: The named reference SIMBAD was invoked but never defined (see the help page).
  13. ^ Cite error: The named reference mnras389_2_869 was invoked but never defined (see the help page).
  14. ^ Cite error: The named reference apj801_2_143 was invoked but never defined (see the help page).
  15. ^ Cite error: The named reference csiro was invoked but never defined (see the help page).