11091+4231 WNO  31AD

 
 
11H 09M 07.15S +42 30' 10.5" P.A. 239 SEP 45.3 MAG 13.30,16.30
 
 
Coord 2000
11091+4231
Discov num
WNO  31
Comp
AD
Coord arcsec 2000
11 09 07.15 +42 30 10.5
Date first
1955
Date last
2002
Obs
3
Pa first
239
Pa last
239
P.A. Now (θ)
239°
Sep first
45.5
Sep last
45.3
Sep. Now (ρ)
45.3"
Mag pri
13.30
Mag sec
16.30
delta mag (ΔM)
3
Spectral class
Pri motion ra
-019
Sec motion ra
-007
Pri motion dec
+010
Sec motion dec
+003
Notes
rPM=0.647
Nature of this double is uncertain.
 
 
11091+4231 SYSTEM COMPONENTS
 
 
Show name SAO coord_2000 discov# comp first last obs pa sep mag1 mag2 d_mag orb current
Show 11091+4231 HJ 2559 AB 1830 2002 5 267 14.8 13.30 13.80 0.50
Show 11091+4231 WNO 31 AC 1955 2002 3 5 29.6 13.30 16.10 2.80
Show 11091+4231 WNO 31 AD 1955 2002 3 239 45.3 13.30 16.30 3.00 <===
Quadruple system
4 visible stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Constellation
Ursa Major
last precise pa
238.5
last precise sep
45.297