Mu Leonis

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Mu Leonis (μ Leo, μ Leonis) is a star in the constellation Leo. It has the traditional names Rasalas (Ras Elased Borealis) and Alshemali, abbreviations of Ras al Asad al Shamaliyy, from the Arabic رأس الأسد الشمالي ra’s al-’asad aš-šamālī "the northern (star) of the lion's head".

Mu Leonis is of spectral class K3 and apparent magnitude +4.1. It is approximately 133 light years from Earth.

Coordinates (equinox 2000):

Right ascension: 9^h 52^m 45^s
Declination: +26° 00' 23"

v t e Stars of Leo

Bayer	α (Regulus) β (Denebola) γ (Algieba) δ (Zosma) ε (Algenubi) ζ (Adhafera) η θ (Chertan) ι κ (Al Minliar al Asad) λ (Alterf) μ (Rasalas) ν ξ ο (Subra) π ρ σ τ υ φ χ ψ ω

Flamsteed	3 6 7 8 9 10 11 12 13 15 18 19 20 21 22 23 31 34 35 37 39 40 42 43 44 45 46 48 49 50 51 52 53 54 55 56 58 59 60 61 62 64 65 67 69 71 72 73 75 76 79 80 81 83 85 86 87 88 89 90 92 93 95 18 LMi 37 Sex 52 LMi

Variable	R S X Y RR RZ SS ST TU TV UV UZ XY XZ AD AM AP AQ CE DH DK DN DP DR DX DY EE EO EX GX HN

HR	3723 3736 3792 3804 3820 3869 3876 3926 3938 3942 3969 4006 4012 4032 4048 4097 4197 4244 4245 4249 4253 4303 4341 4358 4394 4404 4419 4459 4465 4512 4531 4535 4543

HD	81040 84680 86986 88133 89307 95989 96063 96372 97658 99109 100456 100659 100777 102272

Gliese	Gliese 408 Gliese 410 Gliese 436 GJ 3685A

Other	BD+20°2457 IRC +10216 2MASSI J0937347+293142 PG 1031+234 PSR B0919+06 PSR B0943+10 PSR B0950+08 PSR B1133+16 PSR J1022+1001 SDSS J102915+172927 WD 1105-048 Wolf 359

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