Movatterモバイル変換


[0]ホーム

URL:


Jump to content
WikipediaThe Free Encyclopedia
Search

41 Leonis Minoris

From Wikipedia, the free encyclopedia
Star in the constellation Leo Minor
41 Leonis Minoris
Location of 41 Leonis Minoris (circled)
Observation data
Epoch J2000      Equinox J2000
ConstellationLeo Minor
Right ascension10h 43m 24.95671s[1]
Declination+23° 11′ 18.2499″[1]
Apparent magnitude (V)5.08[2]
Characteristics
Evolutionary stagemain sequence[3]
Spectral typeA3Vn[4]
U−Bcolor index+0.06[5]
B−Vcolor index+0.04[5]
Astrometry
Radial velocity (Rv)+18.50[6] km/s
Proper motion (μ)RA: −115.30[1]mas/yr
Dec.: +7.62[1]mas/yr
Parallax (π)14.23±0.25 mas[1]
Distance229 ± 4 ly
(70 ± 1 pc)
Absolute magnitude (MV)0.85[2]
Details
Mass2.47[3] M
Radius2.1[7] R
Luminosity55[3] L
Surface gravity (log g)3.95[8] cgs
Temperature9,902[8] K
Metallicity[Fe/H]−0.01[9] dex
Rotational velocity (v sin i)201[3] km/s
Age182[8] Myr
Other designations
41 LMi,BD+23°2253,GC 14740,HD 92825,HIP 52457,HR 4192,SAO 81490[10]
Database references
SIMBADdata

41 Leonis Minoris is a single[11]star in the northernconstellationLeo Minor, located near the southern border with the neighboring constellation ofLeo. It is visible to the naked eye as a dim, white-hued star with anapparent visual magnitude of 5.08.[2] This object is located approximately 229 light years away from the Sun, based onparallax,[1] and is drifting further away with aradial velocity of +18.5 km/s.[6]

This is an ordinaryA-type main-sequence star with astellar classification of A3Vn,[4] where the 'n' suffix indicates "nebulous" (broadened)lines due to rapidrotation. It is about 182[8] million years old with a highprojected rotational velocity of 201 km/s.[3] The star has 2.5[3] times themass of the Sun and 2.1[7] times theSun's radius. It is radiating 55[3] times theluminosity of the Sun from itsphotosphere at aneffective temperature of 9,902 K.[8]

References

[edit]
  1. ^abcdefVan Leeuwen, F. (2007). "Validation of the new Hipparcos reduction".Astronomy and Astrophysics.474 (2):653–664.arXiv:0708.1752.Bibcode:2007A&A...474..653V.doi:10.1051/0004-6361:20078357.S2CID 18759600.Vizier catalog entry
  2. ^abcAnderson, E.; Francis, Ch. (2012). "XHIP: An extended hipparcos compilation".Astronomy Letters.38 (5): 331.arXiv:1108.4971.Bibcode:2012AstL...38..331A.doi:10.1134/S1063773712050015.S2CID 119257644.Vizier catalog entry
  3. ^abcdefgZorec, J.; Royer, F. (2012). "Rotational velocities of A-type stars".Astronomy & Astrophysics.537: A120.arXiv:1201.2052.Bibcode:2012A&A...537A.120Z.doi:10.1051/0004-6361/201117691.S2CID 55586789.Vizier catalog entry
  4. ^abHoffleit, D.; Warren, W. H. (1995). "VizieR Online Data Catalog: Bright Star Catalogue, 5th Revised Ed. (Hoffleit+, 1991)".VizieR On-line Data Catalog: V/50. Originally Published in: 1964BS....C......0H.5050.Bibcode:1995yCat.5050....0H.
  5. ^abMermilliod, J. C. (2006). "VizieR Online Data Catalog: Homogeneous Means in the UBV System (Mermilliod 1991)".VizieR On-line Data Catalog: II/168. Originally Published in: Institut d'Astronomie.2168.Bibcode:2006yCat.2168....0M.Vizier catalog entry
  6. ^abEvans, D. S. (1967). "The Revision of the General Catalogue of Radial Velocities".Determination of Radial Velocities and Their Applications.30: 57.Bibcode:1967IAUS...30...57E.
  7. ^abAllende Prieto, C.; Lambert, D. L. (1999). "Fundamental parameters of nearby stars from the comparison with evolutionary calculations: Masses, radii and effective temperatures".Astronomy and Astrophysics.352:555–562.arXiv:astro-ph/9911002.Bibcode:1999A&A...352..555A.Vizier catalog entry
  8. ^abcdeDavid, Trevor J.; Hillenbrand, Lynne A. (2015). "The Ages of Early-Type Stars: Strömgren Photometric Methods Calibrated, Validated, Tested, and Applied to Hosts and Prospective Hosts of Directly Imaged Exoplanets".The Astrophysical Journal.804 (2): 146.arXiv:1501.03154.Bibcode:2015ApJ...804..146D.doi:10.1088/0004-637X/804/2/146.S2CID 33401607.Vizier catalog entry
  9. ^Gontcharov, G. A. (2012). "Dependence of kinematics on the age of stars in the solar neighborhood".Astronomy Letters.38 (12):771–782.arXiv:1606.08814.Bibcode:2012AstL...38..771G.doi:10.1134/S1063773712120031.S2CID 118345778.Vizier catalog entry
  10. ^"41 LMi".SIMBAD.Centre de données astronomiques de Strasbourg. Retrieved2019-07-22.
  11. ^Eggleton, P. P.; Tokovinin, A. A. (September 2008)."A catalogue of multiplicity among bright stellar systems".Monthly Notices of the Royal Astronomical Society.389 (2):869–879.arXiv:0806.2878.Bibcode:2008MNRAS.389..869E.doi:10.1111/j.1365-2966.2008.13596.x.S2CID 14878976.
Stars
Bayer
Flamsteed
Variable
HR
HD
Other
Exoplanets
Nebulae
Galaxies
NGC
Other
Retrieved from "https://en.wikipedia.org/w/index.php?title=41_Leonis_Minoris&oldid=1324306599"
Categories:
Hidden categories:

[8]ページ先頭

©2009-2026 Movatter.jp