21211+5337 CVR 240

 
 
21h 21m 05.47s +53 37' 21.4" P.A. 20 sep 66.5 mag 17.30,19.30 Sp M2+M3
 
 
Coord 2000
21211+5337
Discov num
CVR 240
Comp
Coord arcsec 2000
21 21 05.47 +53 37 21.4
Date first
1998
Date last
2010
Obs
3
Pa first
21
Pa last
20
P.A. Now (θ)
20°
Sep first
64.3
Sep last
66.5
Sep. Now (ρ)
66.5"
Mag pri
17.30
Mag sec
19.30
delta mag (ΔM)
2
Spectral class
M2+M3 (red/red)
Pri motion ra
+003
Sec motion ra
+007
Pri motion dec
-070
Sec motion dec
-074
Notes
V R (Proper motion indicates physical, Red magnitudes)
rPM=0.076 (< 0.3, Physical double)
This double is physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
20.4
Precise sep
66.54
Constellation
Cygnus
last precise pa
20.4
last precise sep
66.54
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
21211+5337 CVR 240 2006 1 21 64.4 17.30 19.30 M2+M3 V R 212105.47+533721.4
21211+5337 CVR 240 2010 3 21 66.5 17.30 19.30 M2+M3 V R 212105.47+533721.4

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