00250+3015 SKF  21

 
 
00h 25m 58.96s +30 15' 11.5" P.A. 130 sep 4.7 mag 16.20,16.20 Sp sdB
 
 
Coord 2000
00250+3015
Discov num
SKF  21
Comp
Coord arcsec 2000
00 25 58.96 +30 15 11.5
Date first
1997
Date last
2002
Obs
3
Pa first
132
Pa last
130
P.A. Now (θ)
130°
Sep first
4.5
Sep last
4.7
Sep. Now (ρ)
4.7"
Mag pri
16.20
Mag sec
16.20
delta mag (ΔM)
0
Spectral class
sdB
Pri motion ra
-040
Sec motion ra
Pri motion dec
+027
Sec motion dec
Notes
V (Proper motion indicates physical)
This double is physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
130.1
Precise sep
4.74
Constellation
Andromeda
Gaia DR2
2859056963265425664
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
00250+3015 SKF 21 1997 1 132 4.5 15.20 15.20 sdB D 002558.96+301511.5
00250+3015 SKF 21 2000 2 134 4.7 15.20 15.20 sdB D 002558.96+301511.5
00250+3015 SKF 21 2002 2 130 4.7 16.20 16.20 sdB VD 002558.96+301511.5

If you need more information about this double, apply for a data request form to the WDS.