20310+0211 J   561

 
 
20h 30m 55.17s +02 11' 13.1" P.A. 176 sep 4.3 mag 12.83,12.83
 
 
Coord 2000
20310+0211
Discov num
J   561
Comp
Coord arcsec 2000
20 30 55.17 +02 11 13.1
Date first
1909
Date last
2015
Obs
8
Pa first
183
Pa last
176
P.A. Now (θ)
176°
Sep first
4.4
Sep last
4.3
Sep. Now (ρ)
4.3"
Mag pri
12.83
Mag sec
12.83
delta mag (ΔM)
0
Spectral class
Pri motion ra
+003
Sec motion ra
+005
Pri motion dec
-005
Sec motion dec
-011
Notes
B (Blue magnitudes)
rPM=0.523
Nature of this double is uncertain.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
176.1
Precise sep
4.268
Constellation
Aquila
Gaia DR2
49930519168
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
20310+0211 J 561 1943 6 184 4.0 12.83 12.83 B 203055.17+021113.1
20310+0211 J 561 2000 7 177 4.4 12.83 12.83 B 203055.17+021113.1
20310+0211 J 561 2015 8 176 4.3 12.83 12.83 B 203055.17+021113.1

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