20315+5520 TDS1079

 
 
20h 31m 28.20s +55 19' 46.5" P.A. 124 sep 0.8 mag 10.67,11.17 Sp A2
 
 
Coord 2000
20315+5520
Discov num
TDS1079
Comp
Coord arcsec 2000
20 31 28.20 +55 19 46.5
Date first
1991
Date last
2015
Obs
3
Pa first
124
Pa last
124
P.A. Now (θ)
124°
Sep first
0.9
Sep last
0.8
Sep. Now (ρ)
0.8"
Mag pri
10.67
Mag sec
11.17
delta mag (ΔM)
0.5
Spectral class
A2 (white)
Pri motion ra
-003
Sec motion ra
-003
Pri motion dec
-011
Sec motion dec
-011
Notes
Nature of this double is uncertain.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
124.3
Precise sep
0.843
Constellation
Cygnus
SAO
32648
Tycho2
3954-01011-1
Gaia DR2
19211592448
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
20315+5520 TDS1079 1991 1 124 0.9 10.67 11.17 203128.20+551946.5
20315+5520 TDS1079 2015 2 124 0.8 10.67 11.17 A2 203128.20+551946.5

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