00220+4913 BWL   3AD

 
 
00H 21M 57.84S +49 12' 37.9" P.A. 358 SEP 5.9 MAG 8.60,16.50 SP M2.5V
 
 
Coord 2000
00220+4913
Discov num
BWL   3
Comp
AD
Coord arcsec 2000
00 21 57.84 +49 12 37.9
Date first
2011
Date last
2013
Obs
2
Pa first
1
Pa last
358
P.A. Now (θ)
358°
Sep first
5.8
Sep last
5.9
Sep. Now (ρ)
5.9"
Mag pri
8.60
Mag sec
16.50
delta mag (ΔM)
7.9
Spectral class
M2.5V (red)
Pri motion ra
+221
Sec motion ra
Pri motion dec
-033
Sec motion dec
Notes
N U K (See Notes, Proper motion indicates non-physical, K-band or other infrared magnitudes)
This double is not physical.
 
 
00220+4913 SYSTEM COMPONENTS
 
 
Show name SAO coord_2000 discov# comp first last obs pa sep mag1 mag2 d_mag orb current
Show 00220+4913 SKF1600 AB 1995 2011 3 300 2.3 13.10 16.00 2.90
Show 00220+4913 BWL 3 AC 2011 2013 2 66 5.1 8.60 18.20 9.60
Show 00220+4913 BWL 3 AD 2011 2013 2 358 5.9 8.60 16.50 7.90 <===
Quadruple system
4 visible stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Constellation
Cassiopeia
last precise pa
357.8
last precise sep
5.894