Back Praecipua Afrikaans Praecipua AST Praecipua (estel) Catalan Praecipua Czech 46 Leonis Minoris German Praecipua Spanish 46 Leonis Minoris French 46 Leonis Minoris ID 46 Leonis Minoris Italian こじし座46番星 Japanese
  | |
| Observation data Epoch J2000 Equinox J2000 | |
|---|---|
| Constellation | Leo Minor |
| Right ascension | 10h 53m 18.70487s[1] |
| Declination | +34° 12′ 53.5375″[1] |
| Apparent magnitude (V) | 3.83[2] (3.79–3.84[3]) |
| Characteristics | |
| Evolutionary stage | red clump[4] |
| Spectral type | K0+ III-IV[5] |
| Variable type | suspected[3] |
| Astrometry | |
| Proper motion (μ) | RA: +90.625 mas/yr[6] Dec.: −278.64 mas/yr[6] |
| Parallax (π) | 32.921 ± 0.1775 mas[6] |
| Distance | 99.1 ± 0.5 ly (30.4 ± 0.2 pc) |
| Absolute magnitude (MV) | +1.45[7] |
| Details[8] | |
| Mass | 1.09±0.04 M☉ |
| Radius | 8.21±0.06[9] R☉ |
| Luminosity | 27.42±1.38 L☉ |
| Surface gravity (log g) | 2.674±0.013 cgs |
| Temperature | 4,670[2] K |
| Metallicity [Fe/H] | −0.1 dex |
| Rotational velocity (v sin i) | 1.81[10] km/s |
| Age | 8.2±1.9 Gyr |
| Other designations | |
| Database references | |
| SIMBAD | data |
46 Leonis Minoris (abbreviated 46 LMi), also named Praecipua /prɪˈsɪpjʊə/,[11] 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.[4] Based upon parallax measurements, its distance from the Sun is approximately 99.1 light-years.[6] It is a suspected variable with an amplitude of about 0.05 magnitudes.[3]
- ^ a b Cite error: The named reference
aaa474_2_653was invoked but never defined (see the help page). - ^ a b Cite error: The named reference
aaa526_A100was invoked but never defined (see the help page). - ^ a b c Samus, N. N.; Durlevich, O. V.; et al. (2009). "VizieR Online Data Catalog: General Catalogue of Variable Stars (Samus+ 2007–2013)". VizieR On-line Data Catalog: B/GCVS. Originally Published in: 2009yCat....102025S. 1. Bibcode:2009yCat....102025S.
- ^ a b Soubiran, C.; Bienaymé, O.; Mishenina, T. V.; Kovtyukh, V. V. (2008). "Vertical distribution of Galactic disk stars. IV. AMR and AVR from clump giants". Astronomy and Astrophysics. 480 (1): 91–101. arXiv:0712.1370. Bibcode:2008A&A...480...91S. doi:10.1051/0004-6361:20078788. S2CID 16602121.
- ^ Keenan, Philip C.; McNeil, Raymond C. (1989). "The Perkins catalog of revised MK types for the cooler stars". Astrophysical Journal Supplement Series. 71: 245. Bibcode:1989ApJS...71..245K. doi:10.1086/191373.
- ^ a b c Vallenari, A.; et al. (Gaia collaboration) (2023). "Gaia Data Release 3. Summary of the content and survey properties". Astronomy and Astrophysics. 674: A1. arXiv:2208.00211. Bibcode:2023A&A...674A...1G. doi:10.1051/0004-6361/202243940. S2CID 244398875. Gaia DR3 record for this source at VizieR.
- ^ Mullan, D. J.; MacDonald, J. (2003). "Onset of Mass Loss in Red Giants: Association with an Evolutionary Event". The Astrophysical Journal. 591 (2): 1203. Bibcode:2003ApJ...591.1203M. doi:10.1086/375446.
- ^ Cite error: The named reference
frandsenwas invoked but never defined (see the help page). - ^ Cite error: The named reference
Baines2018was invoked but never defined (see the help page). - ^ Hekker, S.; Meléndez, J. (2007). "Precise radial velocities of giant stars. III. Spectroscopic stellar parameters". Astronomy and Astrophysics. 475 (3): 1003. arXiv:0709.1145. Bibcode:2007A&A...475.1003H. doi:10.1051/0004-6361:20078233. S2CID 10436552.
- ^ "Naming Stars". IAU.org. Retrieved 16 December 2017.