12154+5702 JNN 240AD

 
 
12H 15M 25.45S +57 01' 57.4" P.A. 113 SEP 3.3 MAG 3.31,18.40 SP A2VN DIST. 24.69 PC (80.54 L.Y.)
 
 
Coord 2000
12154+5702
Discov num
JNN 240
Comp
AD
Coord arcsec 2000
12 15 25.45 +57 01 57.4
Date first
2010
Date last
2011
Obs
2
Pa first
111
Pa last
113
P.A. Now (θ)
113°
Sep first
3.5
Sep last
3.3
Sep. Now (ρ)
3.3"
Mag pri
3.31
Mag sec
18.40
delta mag (ΔM)
15.09
Spectral class
A2Vn (white)
Pri motion ra
+104
Sec motion ra
Pri motion dec
+007
Sec motion dec
Notes
N K (See Notes, K-band or other infrared magnitudes)
Nature of this double is uncertain.
 
 
12154+5702 SYSTEM COMPONENTS
 
 
Show name SAO coord_2000 discov# comp first last obs pa sep mag1 mag2 d_mag orb current
Show Megrez 28315 12154+5702 BLL 29 AB 1878 2014 15 73 179.7 3.30 10.21 6.91
Show 28315 12154+5702 BUP 140 AC 1879 2008 7 128 175.3 3.30 11.62 8.32
Show 28315 12154+5702 JNN 240 AD 2010 2011 2 113 3.3 3.31 18.40 15.09 <===
Show 28315 12154+5702 JNN 240 AE 2010 2011 2 169 5.7 3.31 19.30 15.99
Quintuple system
5 visible stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Constellation
Ursa Major
SAO
28315
HIP
59774
HD
106591
HR
4660
GC
16736
GL
Gl 459
BD
BD+57 1363
Bayer
Delta Ursae Majoris
Bayer name
Del UMa
Flamsteed
69 Ursae Majoris
Flamsteed name
69 UMa
Distance
24.69
Distance ly
80.54
last precise pa
112.8
last precise sep
3.343