20123+1856 J  3056

 
 
20h 12m 22.65s +18 57' 33.1" P.A. 256 sep 6.3 mag 12.00,12.20
 
 
Coord 2000
20123+1856
Discov num
J  3056
Comp
Coord arcsec 2000
20 12 22.65 +18 57 33.1
Date first
1944
Date last
2016
Obs
10
Pa first
260
Pa last
256
P.A. Now (θ)
256°
Sep first
5.0
Sep last
6.3
Sep. Now (ρ)
6.3"
Mag pri
12.00
Mag sec
12.20
delta mag (ΔM)
0.2
Spectral class
Pri motion ra
-002
Sec motion ra
-015
Pri motion dec
-002
Sec motion dec
-004
Notes
rPM=0.847
This double is not physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
256.2
Precise sep
6.262
Constellation
Sagitta
Gaia DR2
83646041984
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
20123+1856 J 3056 1944 1 260 5.0 10.20 10.40 201220.00+185600.0
20123+1856 J 3056 2000 3 257 6.3 10.20 10.40 D 201222.65+185733.1
20123+1856 J 3056 2001 4 256 6.2 10.20 10.40 D 201222.65+185733.1
20123+1856 J 3056 2010 4 255 5.5 10.20 10.40 201222.65+185733.1
20123+1856 J 3056 2016 5 256 6.3 12.00 12.20 201222.65+185733.1

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