12154+5702 JNN 240AE

 
 
12h 15m 25.45s +57 01' 57.4" P.A. 169 sep 5.7 mag 3.31,19.30 Sp A2Vn dist. 24.69 pc (80.54 l.y.)
 
 
Coord 2000
12154+5702
Discov num
JNN 240
Comp
AE
Coord arcsec 2000
12 15 25.45 +57 01 57.4
Date first
2010
Date last
2011
Obs
2
Pa first
167
Pa last
169
P.A. Now (θ)
169°
Sep first
5.7
Sep last
5.7
Sep. Now (ρ)
5.7"
Mag pri
3.31
Mag sec
19.30
delta mag (ΔM)
15.99
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
 
 
Precise pa
169.2
Precise sep
5.69
Cdsa2 id
JNN 240 AE
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
Ra deg
12.257069444444445
De deg
57.03261111111111
Distance
24.69
Distance ly
80.54
last precise pa
169.2
last precise sep
5.69
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
12154+5702 JNN 240 AE 2011 2 169 5.7 3.31 19.30 A2Vn N K 121525.45+570157.4

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