20171+0038 J  2701

 
 
20h 17m 12.86s +00 40' 53.5" P.A. 73 sep 4 mag 11.20,11.80
 
 
Coord 2000
20171+0038
Discov num
J  2701
Comp
Coord arcsec 2000
20 17 12.86 +00 40 53.5
Date first
1943
Date last
2015
Obs
5
Pa first
60
Pa last
73
P.A. Now (θ)
73°
Sep first
4.0
Sep last
4.0
Sep. Now (ρ)
4"
Mag pri
11.20
Mag sec
11.80
delta mag (ΔM)
0.6
Spectral class
Pri motion ra
-005
Sec motion ra
+004
Pri motion dec
+002
Sec motion dec
+004
Notes
rPM=1.63
This double is not physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
73.1
Precise sep
4
Constellation
Aquila
SAO
144240
Tycho2
0496-01322-1
Gaia DR2
54230831104
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
20171+0038 J 2701 1945 2 68 4.0 11.20 11.80 201760.00+003800.0
20171+0038 J 2701 2000 4 72 4.0 11.20 11.80 D 201712.86+004053.5
20171+0038 J 2701 2010 5 62 4.6 11.20 11.80 201712.86+004053.5
20171+0038 J 2701 2015 5 73 4.0 11.20 11.80 201712.86+004053.5

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