18191+2935 A   242

 
 
18h 19m 08.22s +29 35' 07.7" P.A. 305 sep 1.3 mag 9.25,10.75 Sp A2
 
 
Coord 2000
18191+2935
Discov num
A   242
Comp
Coord arcsec 2000
18 19 08.22 +29 35 07.7
Date first
1901
Date last
2015
Obs
13
Pa first
292
Pa last
305
P.A. Now (θ)
305°
Sep first
1.0
Sep last
1.3
Sep. Now (ρ)
1.3"
Mag pri
9.25
Mag sec
10.75
delta mag (ΔM)
1.5
Spectral class
A2 (white)
Pri motion ra
+004
Sec motion ra
+004
Pri motion dec
+014
Sec motion dec
+014
Notes
Nature of this double is uncertain.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
304.9
Precise sep
1.331
Constellation
Hercules
SAO
85922
Tycho2
2105-00747-1
Gaia DR2
66290976000
HD
168550
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
18191+2935 A 242 2002 10 301 1.2 9.25 10.75 A2 181908.22+293507.7
18191+2935 A 242 2014 12 305 1.3 9.25 10.75 A2 181908.22+293507.7
18191+2935 A 242 2015 13 305 1.3 9.25 10.75 A2 181908.22+293507.7

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