18521+2431 COU 510

 
 
18h 52m 07.71s +24 30' 58.6" P.A. 175 sep 0.2 mag 8.90,8.90 Sp B9
 
 
Coord 2000
18521+2431
Discov num
COU 510
Comp
Coord arcsec 2000
18 52 07.71 +24 30 58.6
Date first
1970
Date last
2007
Obs
13
Pa first
153
Pa last
175
P.A. Now (θ)
175°
Sep first
0.2
Sep last
0.2
Sep. Now (ρ)
0.2"
Mag pri
8.90
Mag sec
8.90
delta mag (ΔM)
0
Spectral class
B9 (blue-white)
Pri motion ra
+006
Sec motion ra
Pri motion dec
-011
Sec motion dec
Notes
N (See Notes)
Nature of this double is uncertain.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
175.4
Precise sep
0.176
Constellation
Hercules
SAO
86519
Tycho2
2113-02133-1
Gaia DR2
4534216868679403264
HD
174932
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
18521+2431 COU 510 1996 12 166 0.2 8.90 8.90 B9 N 185207.71+243058.6
18521+2431 COU 510 2007 13 175 0.2 8.90 8.90 B9 N 185207.71+243058.6

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