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
Cdsa2 id
CVR 246
Constellation
Cygnus
Ra deg
21.452466666666666
De deg
51.85780555555556
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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