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
Cdsa2 id
SKF 21
Constellation
Andromeda
Ra deg
0.43304444444444445
De deg
30.253194444444443
last precise pa
130.1
last precise sep
4.74
 
 
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.