18425+2537 ROE   7

 
 
18h 42m 27.00s +25 37' 54.1" P.A. 197 sep 9.5 mag 10.43,11.40 Sp A2
 
 
Coord 2000
18425+2537
Discov num
ROE   7
Comp
Coord arcsec 2000
18 42 27.00 +25 37 54.1
Date first
1897
Date last
2010
Obs
8
Pa first
200
Pa last
197
P.A. Now (θ)
197°
Sep first
10.1
Sep last
9.5
Sep. Now (ρ)
9.5"
Mag pri
10.43
Mag sec
11.40
delta mag (ΔM)
0.97
Spectral class
A2 (white)
Pri motion ra
+001
Sec motion ra
+009
Pri motion dec
-001
Sec motion dec
+005
Notes
rPM=0.971
This double is not physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
197.4
Precise sep
9.45
Constellation
Hercules
last precise pa
197.4
last precise sep
9.45
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
18425+2537 ROE 7 2000 5 198 9.7 10.43 11.40 A2 D 184227.00+253754.1
18425+2537 ROE 7 2010 6 197 9.5 10.43 11.40 A2 D 184227.00+253754.1

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