19393+2822 J  2989

 
 
19h 39m 12.38s +28 21' 02.1" P.A. 272 sep 4.6 mag 11.20,12.60 Sp K0III
 
 
Coord 2000
19393+2822
Discov num
J  2989
Comp
Coord arcsec 2000
19 39 12.38 +28 21 02.1
Date first
1944
Date last
2015
Obs
6
Pa first
275
Pa last
272
P.A. Now (θ)
272°
Sep first
3.0
Sep last
4.6
Sep. Now (ρ)
4.6"
Mag pri
11.20
Mag sec
12.60
delta mag (ΔM)
1.4
Spectral class
K0III (yellow-orange)
Pri motion ra
+007
Sec motion ra
-018
Pri motion dec
-008
Sec motion dec
-016
Notes
rPM=1.09
This double is not physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
272
Precise sep
4.625
Constellation
Cygnus
SAO
87515
Gaia DR2
51117484928
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
19393+2822 J 2989 1944 1 275 3.0 9.70 12.00 193920.00+282200.0
19393+2822 J 2989 2007 3 272 4.5 9.70 12.00 193912.38+282102.1
19393+2822 J 2989 2010 5 273 3.8 11.20 12.60 K0III 193912.38+282102.1
19393+2822 J 2989 2015 6 272 4.6 11.20 12.60 K0III 193912.38+282102.1

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