11 Leonis Minoris

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Template:Starbox visbin

11 Leonis Minoris
File:SVLMiLightCurve.png
A near-infrared (y band) light curve for SV Leonis Minoris, adapted from Skiff and Lockwood (1986)[1]
Observation data
Epoch J2000      Equinox J2000
Constellation Leo Minor
Right ascension Template:RA[2]
Declination Template:DEC[2]
Apparent magnitude (V) 5.54 + 14.0[3]
Characteristics
Spectral type G8V[4] + M4[5]
U−B Template:Engvar 0.44/—
B−V Template:Engvar 0.77/—
Variable type RS CVn
Astrometry
Radial velocity (Rv)+14.40[6] km/s
Proper motion (μ) RA: Script error: No such module "val". mas/yr[2]
Dec.: Script error: No such module "val". mas/yr[2]
Parallax (π)89.0092±0.0937 mas[2]
DistanceTemplate:Rnd ± Template:Rnd ly
(Template:Rnd ± Template:Rnd pc)
Absolute magnitude (MV)Script error: No such module "val".[7]
Details[8]
11 LMi A
MassScript error: No such module "val". Template:Solar mass
RadiusTemplate:VAL Template:Solar radius
LuminosityScript error: No such module "val". Template:Solar luminosity
Surface gravity (log g)Script error: No such module "val". cgs
TemperatureScript error: No such module "val". K
Metallicity [Fe/H]Script error: No such module "val". dex
Rotation18.0 days[9]
Age7.9[10] Gyr
11 LMi B
Mass0.23[11] Template:Solar mass
Metallicity [Fe/H]{{{metal_fe2}}} dex
Other designations
Template:Odlist[12]
Database references
SIMBAD11 LMi A
11 LMi B
ARICNS11 LMi A
11 LMi B

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11 Leonis Minoris is a binary star[3] located 36.64 light years away from Earth,[2] in the northern constellation of Leo Minor.[12] It is visible to the naked eye as a dim, yellow-hued star with an apparent visual magnitude of 5.54.[3] The system is moving away from the Earth with a heliocentric radial velocity of +14.4 km/s.[6] It has a relatively high proper motion, traversing the celestial sphere at the rate of 0.764 arc seconds per annum.[13]

The primary component is a G-type main-sequence star with a stellar classification of G8V,[4] which is slightly less massive and slightly dimmer than the Sun.[8] This is an RS Canum Venaticorum variable star with its luminosity varying by 0.033 magnitudes over a period of 18 days.[1] Compared to the Sun, it has more than double the abundance of elements more massive than helium—what astronomers term the star's metallicity.[9]

There is a secondary component, a 14th[3] magnitude red dwarf star much dimmer than the primary. The pair have an orbital period of 201 years with a high eccentricity of 0.88.[4]

References

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  1. ↑ a b Script error: No such module "citation/CS1".
  2. ↑ a b c d e Template:Cite DR3
  3. ↑ a b c d Script error: No such module "citation/CS1".
  4. ↑ a b c Script error: No such module "citation/CS1".
  5. ↑ Script error: No such module "citation/CS1".
  6. ↑ a b Script error: No such module "citation/CS1".
  7. ↑ Script error: No such module "citation/CS1".
  8. ↑ a b Script error: No such module "citation/CS1". 11 Leonis Minoris' database entry at VizieR.
  9. ↑ a b Script error: No such module "citation/CS1".
  10. ↑ Script error: No such module "citation/CS1".
  11. ↑ Script error: No such module "citation/CS1".
  12. ↑ a b Template:Cite simbad
  13. ↑ Script error: No such module "citation/CS1".

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External links

  • Script error: No such module "citation/CS1".

Template:Stars of Leo Minor

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