Regulus

Regulus A/B/C

Regulus is located at the lower right on this map of the constellation.
Dhata pangamatan Epos J2000
Rasi lintang	Leo
Asensio rekta	A: 10h 08 min 22.3s BC: 10h 08 min 12.8/14s
Dhéklinasi	A: +11° 58' 02" BC: +11° 59' 48"
Magnitudo katon (V)	1.35/8.14/13.5
Ciri-ciri
Kelas spektrum	B7 V/K1-2 V/M5 V
Indèks warna U-B	−0.36/0.54
Indèks warna B-V	−0.11/0.87
Jinis variabel	Slightly
Astrometri
Kacepetan radhial (Rv)	+5.9 km/s
Gerak dhiri (μ)	RA: 249 mas/taun Dek.: 2 mas/taun
Paralaks (π)	42.09 ± 0.79 mas
Let	77 ± 1 tc (23.8 ± 0.4 pc)
Magnitudo mutlak (MV)	−0.52/4.2/9.5
Detail
Massa	3.5/0.8/0.2 M☉
Radhius	3.15–4.15/0.5/? R☉
Luminositas	150/0.31 L☉
Suhu	10,300–15,400/? K
Rotasi	315 km/s. (15.9 hours)/?
Umur	5 × 107 taun
Pamènèhan jeneng liya
Alpha Leonis, 32 Leo, Cor Leonis, Basilicus, Lion’s Heart, Rex, Kalb al Asad, Kabeleced, GJ 9316, HR 3982, BD +12° 2149/2147, HD 87901/87884, GCTP 2384.00, LTT 12716/12714, SAO 98967/98966, FK5 380, HIP 49669, TD1 14585.
Réferènsi database
SIMBAD	data

Regulus (α Leo / α Leonis / Alpha Leonis) yaiku lintang ingkang padhang piyambak ning rasi Leo lan kagolong lintang kang cemerlang ning langit nalika bengi. Lintang iki ana ning jarak 77.5 taun cahya saka Bumi. Regulus kagolong ning sistem multi bintang tuladhané liyané yaiku papat lintang kang nggabung ning rong pasang bintang. Regulus A yaiku lintang biru keputihan lan pasanganné kang durung diteliti, bisa baé bintang katai putih (white dwarf).^[1] Ing ngarepé Regulus A ana pasangané yaikuRegulus B lan Regulus C, kang kagolong lintang remeng.

1. ↑ Gies, D.R.; et al. (2008). "A Spectroscopic Orbit for Regulus". The Astrophysical Journal. 682 (2): L117–L120. Bibcode:2008ApJ...682L.117G. doi:10.1086/591148. {{cite journal}}: Explicit use of et al. in: |author= (pitulung)