21091+3822 SEI1417

 
 
21h 09m 05.34s +38 22' 38.8" P.A. 140 sep 31.2 mag 12.25,12.15
 
 
Coord 2000
21091+3822
Discov num
SEI1417
Comp
Coord arcsec 2000
21 09 05.34 +38 22 38.8
Date first
1895
Date last
2010
Obs
6
Pa first
130
Pa last
140
P.A. Now (θ)
140°
Sep first
29.3
Sep last
31.2
Sep. Now (ρ)
31.2"
Mag pri
12.25
Mag sec
12.15
delta mag (ΔM)
0.1
Spectral class
Pri motion ra
+021
Sec motion ra
-003
Pri motion dec
+048
Sec motion dec
+007
Notes
rPM=0.907
This double is not physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
139.9
Precise sep
31.2
Constellation
Cygnus
last precise pa
139.9
last precise sep
31.2
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
21091+3822 SEI1417 1998 4 139 31.0 11.00 11.00 D 210905.34+382238.8
21091+3822 SEI1417 2002 5 139 31.1 11.00 11.00 D 210905.34+382238.8
21091+3822 SEI1417 2010 6 140 31.2 12.25 12.15 210905.34+382238.8

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