20087+3130 SEI 910

 
 
20h 08m 39.17s +31 29' 47.7" P.A. 105 sep 12.3 mag 11.66,12.15
 
 
Coord 2000
20087+3130
Discov num
SEI 910
Comp
Coord arcsec 2000
20 08 39.17 +31 29 47.7
Date first
1893
Date last
2015
Obs
14
Pa first
122
Pa last
105
P.A. Now (θ)
105°
Sep first
10.0
Sep last
12.3
Sep. Now (ρ)
12.3"
Mag pri
11.66
Mag sec
12.15
delta mag (ΔM)
0.49
Spectral class
Pri motion ra
-003
Sec motion ra
+026
Pri motion dec
-004
Sec motion dec
+004
Notes
rPM=1.144
This double is not physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
105.2
Precise sep
12.264
Constellation
Cygnus
SAO
69493
Tycho2
2671-01284-1
Gaia DR2
19300126848
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
20087+3130 SEI 910 2006 7 106 12.4 11.66 12.21 D 200839.17+312947.7
20087+3130 SEI 910 2010 9 106 12.0 11.66 12.15 200839.17+312947.7
20087+3130 SEI 910 2015 10 105 12.3 11.66 12.15 200839.17+312947.7

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