12540+5558 BLM   2 (Alioth)

 
 
12h 54m 01.63s +55 57' 35.4" P.A. 60 sep 0.1 mag 1.77, Sp A0p dist. 25.31 pc (82.56 l.y.)
 
 
Coord 2000
12540+5558
Discov num
BLM   2
Comp
Coord arcsec 2000
12 54 01.63 +55 57 35.4
Date first
1975
Date last
2002
Obs
2
Pa first
95
Pa last
60
P.A. Now (θ)
60°
Sep first
0.1
Sep last
0.1
Sep. Now (ρ)
0.1"
Mag pri
1.77
Mag sec
delta mag (ΔM)
Spectral class
A0p (white)
Pri motion ra
+112
Sec motion ra
Pri motion dec
-006
Sec motion dec
Notes
N (See Notes)
Nature of this double is uncertain.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
59.9
Precise sep
0.11
Common name
Alioth
Meaning
Goat
Other names
ALIATH
Constellation
Ursa Major
SAO
28553
HIP
62956
HD
112185
HR
4905
GC
17518
BD
BD+56 1627
Bayer
Epsilon Ursae Majoris
Bayer name
Eps UMa
Flamsteed
77 Ursae Majoris
Flamsteed name
77 UMa
Distance
25.31
Distance ly
82.56
last precise pa
59.9
last precise sep
0.11
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
12540+5558 BLM 2 1975 1 95 0.1 1.77   A0p N 125401.63+555735.4
12540+5558 BLM 2 2002 2 60 0.1 1.77   A0p N D 125401.63+555735.4

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