20290+3924 ALI1144

 
 
20h 28m 56.04s +39 24' 10.4" P.A. 165 sep 11.6 mag 12.20,12.50 Sp G8+G2
 
 
Coord 2000
20290+3924
Discov num
ALI1144
Comp
Coord arcsec 2000
20 28 56.04 +39 24 10.4
Date first
1928
Date last
2016
Obs
11
Pa first
167
Pa last
165
P.A. Now (θ)
165°
Sep first
11.1
Sep last
11.6
Sep. Now (ρ)
11.6"
Mag pri
12.20
Mag sec
12.50
delta mag (ΔM)
0.3
Spectral class
G8+G2 (yellow/yellow)
Pri motion ra
-002
Sec motion ra
+004
Pri motion dec
+003
Sec motion dec
-002
Notes
rPM=1.746
This double is not physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
164.8
Precise sep
11.572
Constellation
Cygnus
SAO
70088
Tycho2
3156-00126-1
Gaia DR2
35549593216
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
20290+3924 ALI1144 1998 2 165 11.5 11.76 11.80 D 202856.04+392410.4
20290+3924 ALI1144 2002 3 165 11.5 11.76 11.80 D 202856.04+392410.4
20290+3924 ALI1144 2010 4 166 11.1 11.80 12.20 202856.04+392410.4
20290+3924 ALI1144 2016 7 165 11.6 12.20 12.50 G8+G2 202856.04+392410.4

If you need more information about this double, apply for a data request form to the WDS.