18168+2340 POU3377

 
 
18h 16m 50.52s +23 40' 29.9" P.A. 137 sep 2.2 mag 13.20,13.60
 
 
Coord 2000
18168+2340
Discov num
POU3377
Comp
Coord arcsec 2000
18 16 50.52 +23 40 29.9
Date first
1904
Date last
2000
Obs
4
Pa first
140
Pa last
137
P.A. Now (θ)
137°
Sep first
2.0
Sep last
2.2
Sep. Now (ρ)
2.2"
Mag pri
13.20
Mag sec
13.60
delta mag (ΔM)
0.4
Spectral class
Pri motion ra
-020
Sec motion ra
Pri motion dec
+021
Sec motion dec
Notes
Nature of this double is uncertain.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
136.7
Precise sep
2.23
Constellation
Hercules
last precise pa
136.7
last precise sep
2.23
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
18168+2340 POU3377 1954 3 139 3.7 13.20 13.60 181607.50+234000.0
18168+2340 POU3377 2000 4 137 2.2 13.20 13.60 181650.52+234029.9

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