| 释义 |
- Nomenclature
- See also
- References
{{Starbox begin
| name=46 Leonis Minoris
}}{{Starbox image
| image={{Location mark
|image=Leo Minor constellation map.svg|alt=|float=center|width=220
|label=|position=right
|mark=Red circle.svg|mark_width=10|mark_link=46 LMi
|x=210|y=458
}}
|caption=Location of 46 Leonis Minoris (circled)
}}{{Starbox observe
| epoch = J2000
| ra = {{RA|10|53|18.70487}}
| dec = {{DEC|+34|12|53.5375}}
| appmag_v = 3.83[3] {{nowrap|(3.79 - 3.84[1])}}
| constell = Leo Minor
}}{{Starbox character
| class = K0+ III-IV[2]
| b-v =
| u-b =
| variable =
}}{{Starbox astrometry
| radial_v =
| prop_mo_ra = +92.02
| prop_mo_dec = –285.82
| parallax = 34.38
| p_error = 0.21
| parallax_footnote =
| absmag_v = +1.45[3]
}}{{Starbox detail
| mass = 1.69[4]
| radius = {{nowrap|8.22 ± 0.22}}[3]
| luminosity = {{nowrap|34 ± 2}}[3]
| temperature = 4,670[3]
| metal_fe = −0.20[5]
| rotation =
| rotational_velocity = 1.81[6]
| gravity = 2.96[3]
| age_gyr = 6.76[7]
}}{{Starbox catalog
| names = Praecipua, 46 LMi, BD+34 2172, FK5 412, HD 94264, HIP 53229, HR 4247, SAO 62297
}}{{Starbox reference
| Simbad = 46+LMi
}}{{Starbox end}}46 Leonis Minoris (abbreviated 46 LMi), also named Praecipua,[8] is the brightest star in the constellation of Leo Minor. It is of spectral class K0+III-IV and of magnitude 3.83. It is a red clump giant.[7] Based upon parallax measurements, its distance from the Sun is approximately 95 light-years. It is a suspected variable with an amplitude of about 0.05 magnitudes.[1] Nomenclature 46 Leonis Minoris is the star's Flamsteed designation. It is sometimes designated "o LMi" (not "ο LMi"), from Bode's catalogue of 1801. It was presumably intended to be designated α, as Francis Baily decided to letter each star brighter than magnitude 4.5, but the designation was missing from his catalogue, even though the dimmer β was included.[9]It bore the traditional proper name Praecipua, derived from the Latin for "the Chief (Star of Leo Minor)".[10] The name may originally have referred to 37 Leonis Minoris, and later mistransferred to this star.[11] In 2016, the International Astronomical Union (IAU) organized a Working Group on Star Names (WGSN)[12] to catalog and standardize proper names for stars. The WGSN approved the name Praecipua for this star on 30 June 2017 and it is now so included in the List of IAU-approved Star Names.[8] It is known as 勢四, "the Fourth (Star) of the Eunuch", in traditional Chinese astronomy.{{citation needed|date=November 2016}} See also - Traditional Chinese star names#Leo Minor
References 1. ^1 {{cite journal|bibcode=2009yCat....102025S|title=VizieR Online Data Catalog: General Catalogue of Variable Stars (Samus+ 2007-2013)|journal=VizieR On-line Data Catalog: B/gcvs. Originally published in: 2009yCat....102025S|volume=1|display-authors=etal|author1=Samus|first1=N. N.|last2=Durlevich|first2=O. V.|year=2009}}
2. ^{{cite journal|bibcode=1989ApJS...71..245K|title=The Perkins catalog of revised MK types for the cooler stars|journal=Astrophysical Journal Supplement Series|volume=71|pages=245|author1=Keenan|first1=Philip C.|last2=McNeil|first2=Raymond C.|year=1989|doi=10.1086/191373}}
3. ^{{cite journal|bibcode=2003ApJ...591.1203M|title=Onset of Mass Loss in Red Giants: Association with an Evolutionary Event|journal=The Astrophysical Journal|volume=591|issue=2|pages=1203|author1=Mullan|first1=D. J.|last2=MacDonald|first2=J.|year=2003|doi=10.1086/375446}}
4. ^{{cite journal|bibcode=2014KPCB...30..244L|arxiv=1412.6950|title=Determining the effective temperatures of G- and K-type giants and supergiants based on observed photometric indices|journal=Kinematics and Physics of Celestial Bodies|volume=30|issue=5|pages=244|author1=Lyubimkov|first1=L. S.|last2=Poklad|first2=D. B.|year=2014|doi=10.3103/S0884591314050055}}
5. ^{{cite journal|arxiv=1507.06051|bibcode=2015PASP..127.1021W|title=The Weihai Observatory Search for Close-in Planets Orbiting Giant Stars|journal=Publications of the Astronomical Society of the Pacific|volume=127|issue=956|pages=1021|author1=Wittenmyer|first1=Robert A.|last2=Gao|first2=Dongyang|last3=Hu|first3=Shao Ming|last4=Villaver|first4=Eva|last5=Endl|first5=Michael|last6=Wright|first6=Duncan|year=2015|doi=10.1086/683258}}
6. ^{{cite journal|bibcode=2007A&A...475.1003H|title=Precise radial velocities of giant stars. III. Spectroscopic stellar parameters|journal=Astronomy and Astrophysics|volume=475|issue=3|pages=1003|author1=Hekker|first1=S.|last2=Meléndez|first2=J.|year=2007|doi=10.1051/0004-6361:20078233|arxiv = 0709.1145 }}
7. ^1 {{cite journal|bibcode=2008A&A...480...91S|arxiv=0712.1370|title=Vertical distribution of Galactic disk stars. IV. AMR and AVR from clump giants|journal=Astronomy and Astrophysics|volume=480|pages=91|author1=Soubiran|first1=C.|last2=Bienaymé|first2=O.|last3=Mishenina|first3=T. V.|last4=Kovtyukh|first4=V. V.|year=2008|doi=10.1051/0004-6361:20078788}}
8. ^1 {{cite web | url=https://www.iau.org/public/themes/naming_stars/ | title=Naming Stars |publisher=IAU.org |accessdate=16 December 2017}}
9. ^{{cite book |author=Wagman, Morton |date = 2003 |title = Lost Stars |publisher = McDonald and Woodward |location = Blacksburg, Virginia |isbn=0-939923-78-5}}
10. ^{{cite book |author= Allen, R. H. |author-link= Richard Hinckley Allen |date = 1963 |title = Their Lore and Meaning |edition = Reprint |publisher = Dover Publications Inc. |location = New York, NY |isbn = 0-486-21079-0 |page = 264}}[https://books.google.com/books?id=5xQuAAAAIAAJ]
11. ^Leo Minor: The little lion- Ian Ridpath's Star Tales
12. ^{{cite web | url=https://www.iau.org/science/scientific_bodies/working_groups/280/ | title=IAU Working Group on Star Names (WGSN)|accessdate=22 May 2016}}
13. ^1 2 3 4 5 {{citation | display-authors=1 | last1=Piau | first1=L. | last2=Kervella | first2=P. | last3=Dib | first3=S. | last4=Hauschildt | first4=P. | title=Surface convection and red-giant radius measurements | journal=Astronomy and Astrophysics | volume=526 | page=A100 | doi=10.1051/0004-6361/201014442 | bibcode=2011A&A...526A.100P | arxiv=1010.3649 |date=February 2011}}
}}{{Stars of Leo Minor}} 11 : K-type giants|K-type subgiants|Suspected variables|Horizontal-branch stars|Leo Minor|Stars with proper names|Durchmusterung objects|Flamsteed objects|Henry Draper Catalogue objects|Hipparcos objects|HR objects |