21271+5151 CVR 246

 
 
21h 27m 08.88s +51 51' 28.1" P.A. 54 sep 72.6 mag 17.30,19.60 Sp M1+M3
 
 
Coord 2000
21271+5151
Discov num
CVR 246
Comp
Coord arcsec 2000
21 27 08.88 +51 51 28.1
Date first
1998
Date last
2010
Obs
3
Pa first
52
Pa last
54
P.A. Now (θ)
54°
Sep first
71.4
Sep last
72.6
Sep. Now (ρ)
72.6"
Mag pri
17.30
Mag sec
19.60
delta mag (ΔM)
2.3
Spectral class
M1+M3 (red/red)
Pri motion ra
-004
Sec motion ra
-005
Pri motion dec
+078
Sec motion dec
+077
Notes
V R (Proper motion indicates physical, Red magnitudes)
rPM=0.018 (< 0.3, Physical double)
This double is physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
54
Precise sep
72.6
Constellation
Cygnus
last precise pa
54
last precise sep
72.6
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
21271+5151 CVR 246 2006 1 51 72.0 17.30 19.60 M1+M3 V R 212708.88+515128.1
21271+5151 CVR 246 2010 3 54 72.2 17.30 19.60 M1+M3 V R 212708.88+515128.1

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