19388+3742 ES 2497

 
 
19h 38m 44.63s +37 41' 40.2" P.A. 257 sep 4.7 mag 11.11,12.60
 
 
Coord 2000
19388+3742
Discov num
ES 2497
Comp
Coord arcsec 2000
19 38 44.63 +37 41 40.2
Date first
1931
Date last
2015
Obs
5
Pa first
247
Pa last
257
P.A. Now (θ)
257°
Sep first
5.5
Sep last
4.7
Sep. Now (ρ)
4.7"
Mag pri
11.11
Mag sec
12.60
delta mag (ΔM)
1.49
Spectral class
Pri motion ra
-008
Sec motion ra
+031
Pri motion dec
-014
Sec motion dec
+004
Notes
rPM=1.374
This double is not physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
257.1
Precise sep
4.662
Constellation
Cygnus
SAO
68615
Tycho2
3135-00013-1
Gaia DR2
09445098112
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
19388+3742 ES 2497 2006 3 256 4.4 11.11 12.60 D 193844.63+374140.2
19388+3742 ES 2497 2015 5 257 4.7 11.11 12.60 193844.63+374140.2

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