20280+3813 ES 2507

 
 
20h 28m 00.78s +38 12' 42.8" P.A. 84 sep 8.2 mag 10.50,11.00
 
 
Coord 2000
20280+3813
Discov num
ES 2507
Comp
Coord arcsec 2000
20 28 00.78 +38 12 42.8
Date first
1931
Date last
2015
Obs
9
Pa first
85
Pa last
84
P.A. Now (θ)
84°
Sep first
7.7
Sep last
8.2
Sep. Now (ρ)
8.2"
Mag pri
10.50
Mag sec
11.00
delta mag (ΔM)
0.5
Spectral class
Pri motion ra
+006
Sec motion ra
+011
Pri motion dec
+002
Sec motion dec
+005
Notes
rPM=0.483
Nature of this double is uncertain.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
83.7
Precise sep
8.173
Constellation
Cygnus
Gaia DR2
94452488448
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
20280+3813 ES 2507 1998 2 84 8.2 10.50 11.00 D 202800.78+381242.8
20280+3813 ES 2507 2002 3 84 8.2 10.50 11.00 D 202800.78+381242.8
20280+3813 ES 2507 2010 4 82 7.7 10.50 11.00 202800.78+381242.8
20280+3813 ES 2507 2015 5 84 8.2 10.50 11.00 202800.78+381242.8

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