HD 141937

From Wikipedia, the free encyclopedia
Jump to navigation Jump to search

Template:Short description

HD 141937
Observation data
Epoch J2000      Equinox J2000
Constellation Libra
Right ascension Template:RA[1]
Declination Template:DEC[1]
Apparent magnitude (V) 7.25[2]
Characteristics
Spectral type G1V[3]
B−V Template:Engvar Script error: No such module "val".[2]
Astrometry
Radial velocity (Rv)Script error: No such module "val".[2] km/s
Proper motion (μ) RA: Script error: No such module "val".[1] mas/yr
Dec.: Script error: No such module "val".[1] mas/yr
Parallax (π)29.9453±0.0640 mas[1]
DistanceTemplate:Rnd ± Template:Rnd ly
(Template:Rnd ± Template:Rnd pc)
Absolute magnitude (MV)4.71[2]
Details
Mass1.03[4] Template:Solar mass
Radius1.05[1] Template:Solar radius
LuminosityScript error: No such module "val".[1] Template:Solar luminosity
Surface gravity (log g)4.44[4] cgs
TemperatureScript error: No such module "val".[1] K
Metallicity [Fe/H]Script error: No such module "val".[2] dex
Rotational velocity (v sin i)6.0[2] km/s
Age3.82[4] Gyr
Metallicity [Fe/H]{{{metal_fe2}}} dex
Other designations
Template:Odlist[5]
Database references
SIMBADdata

Script error: No such module "Check for unknown parameters".

HD 141937 is a star in the southern zodiac constellation of Libra, positioned a couple of degrees to the north of Lambda Librae. It is a yellow-hued star with an apparent visual magnitude of 7.25,[2] which means it is too faint to be seen with the naked eye. This object is located at a distance of 108.9 light years from the Sun based on parallax,[1] but is drifting closer with a radial velocity of −2.2 km/s.[2] It has an absolute magnitude of 4.71.[2]

This is a G-type main-sequence star with a stellar classification of G1V.[3] It is a solar-type star with slightly higher mass and radius compared to the Sun. The metallicity is higher than solar. It is an estimated 3.8[4] billion years old and is spinning with a projected rotational velocity of 6 km/s.[6] The star is radiating 1.2 times the luminosity of the Sun from its photosphere at an effective temperature of 5,890 K.[1]

The star has a substellar companion (HD 141937 b) announced in April 2001 by the European Southern Observatory. It has a minimum mass of 9.7 Template:Jupiter mass. In 2020, the inclination of the orbit was measured, revealing its true mass to be 27.4 Template:Jupiter mass, which makes it a brown dwarf. A 653-day orbit places the orbital distance 1.5 times farther away from the star as Earth is from the Sun, with a high eccentricity of 41%.[7][8]

Template:OrbitboxPlanet begin Template:OrbitboxPlanet

|}Script error: No such module "Check for unknown parameters".

See also

References

<templatestyles src="Reflist/styles.css" />

  1. ↑ a b c d e f g h i j Template:Cite Gaia DR2
  2. ↑ a b c d e f g h i Script error: No such module "Citation/CS1".
  3. ↑ a b Script error: No such module "Citation/CS1".
  4. ↑ a b c d Script error: No such module "Citation/CS1".
  5. ↑ Template:Cite simbad
  6. ↑ Script error: No such module "Citation/CS1".
  7. ↑ Script error: No such module "citation/CS1".
  8. ↑ Script error: No such module "Citation/CS1".

Cite error: <ref> tag with name "Liu2014" defined in <references> is not used in prior text.

Cite error: <ref> tag with name "Udry2002" defined in <references> is not used in prior text.

Script error: No such module "Check for unknown parameters".

Template:Sky Template:Stars of Libra

Retrieved from "http://debianws.lexgopc.com/wiki143/index.php?title=HD_141937&oldid=5905163"