21075+3831 SEI1408

 
 
21h 07m 30.40s +38 31' 20.5" P.A. 53 sep 9.3 mag 11.10,11.80
 
 
Coord 2000
21075+3831
Discov num
SEI1408
Comp
Coord arcsec 2000
21 07 30.40 +38 31 20.5
Date first
1895
Date last
2010
Obs
6
Pa first
53
Pa last
53
P.A. Now (θ)
53°
Sep first
8.6
Sep last
9.3
Sep. Now (ρ)
9.3"
Mag pri
11.10
Mag sec
11.80
delta mag (ΔM)
0.7
Spectral class
Pri motion ra
-002
Sec motion ra
+003
Pri motion dec
-008
Sec motion dec
-001
Notes
N (See Notes)
rPM=1.043
This double is not physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
53.4
Precise sep
9.29
Constellation
Cygnus
last precise pa
53.4
last precise sep
9.29
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
21075+3831 SEI1408 1998 4 53 9.2 11.10 11.80 N D 210730.40+383120.5
21075+3831 SEI1408 2002 5 53 9.3 11.10 11.80 N D 210730.40+383120.5
21075+3831 SEI1408 2010 6 53 8.5 11.10 11.80 N 210730.40+383120.5

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