20248-0220 J  1773

 
 
20h 24m 42.75s -02 18' 54.6" P.A. 51 sep 4.5 mag 9.30,12.50
 
 
Coord 2000
20248-0220
Discov num
J  1773
Comp
Coord arcsec 2000
20 24 42.75 -02 18 54.6
Date first
1941
Date last
2015
Obs
6
Pa first
60
Pa last
51
P.A. Now (θ)
51°
Sep first
4.0
Sep last
4.5
Sep. Now (ρ)
4.5"
Mag pri
9.30
Mag sec
12.50
delta mag (ΔM)
3.2
Spectral class
Pri motion ra
-007
Sec motion ra
Pri motion dec
-005
Sec motion dec
Notes
Nature of this double is uncertain.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
51.3
Precise sep
4.483
Constellation
Aquila
Tycho2
5167-00093-1
Gaia DR2
20720390144
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
20248-0220 J 1773 1984 2 59 3.9 9.30 12.50 202407.50-022000.0
20248-0220 J 1773 2000 3 52 4.5 9.30 12.50 202442.75-021854.6
20248-0220 J 1773 2010 5 49 4.3 9.30 12.50 202442.75-021854.6
20248-0220 J 1773 2015 6 51 4.5 9.30 12.50 202442.75-021854.6

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