20305-0745 J  2312

 
 
20h 30m 23.64s -07 44' 57.1" P.A. 123 sep 5.4 mag 11.13,12.70
 
 
Coord 2000
20305-0745
Discov num
J  2312
Comp
Coord arcsec 2000
20 30 23.64 -07 44 57.1
Date first
1893
Date last
2015
Obs
9
Pa first
123
Pa last
123
P.A. Now (θ)
123°
Sep first
4.9
Sep last
5.4
Sep. Now (ρ)
5.4"
Mag pri
11.13
Mag sec
12.70
delta mag (ΔM)
1.57
Spectral class
Pri motion ra
-025
Sec motion ra
+021
Pri motion dec
+000
Sec motion dec
-009
Notes
rPM=1.875
This double is not physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
122.7
Precise sep
5.405
Constellation
Aquila
Tycho2
5754-01129-1
Gaia DR2
64678360320
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
20305-0745 J 2312 1942 2 115 4.0 11.13 12.70 203023.64-074457.1
20305-0745 J 2312 2000 3 122 5.4 11.13 12.70 203023.64-074457.1
20305-0745 J 2312 2015 7 123 5.4 11.13 12.70 203023.64-074457.1

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