20251+3141 ES 2434

 
 
20h 25m 07.38s +31 40' 43.2" P.A. 287 sep 4.3 mag 10.50,10.70
 
 
Coord 2000
20251+3141
Discov num
ES 2434
Comp
Coord arcsec 2000
20 25 07.38 +31 40 43.2
Date first
1893
Date last
2015
Obs
9
Pa first
280
Pa last
287
P.A. Now (θ)
287°
Sep first
4.2
Sep last
4.3
Sep. Now (ρ)
4.3"
Mag pri
10.50
Mag sec
10.70
delta mag (ΔM)
0.2
Spectral class
Pri motion ra
+074
Sec motion ra
-001
Pri motion dec
-031
Sec motion dec
-007
Notes
rPM=0.981
This double is not physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
287.2
Precise sep
4.271
Constellation
Cygnus
SAO
69981
Gaia DR2
77854162688
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
20251+3141 ES 2434 2006 7 286 4.1 10.50 10.70 D 202507.38+314043.2
20251+3141 ES 2434 2015 9 287 4.3 10.50 10.70 202507.38+314043.2

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