18558+1243 BPM 891

 
 
18h 55m 47.21s +12 43' 19.2" P.A. 214 sep 99.6 mag 14.68,15.49
 
 
Coord 2000
18558+1243
Discov num
BPM 891
Comp
Coord arcsec 2000
18 55 47.21 +12 43 19.2
Date first
1991
Date last
2010
Obs
4
Pa first
213
Pa last
214
P.A. Now (θ)
214°
Sep first
99.4
Sep last
99.6
Sep. Now (ρ)
99.6"
Mag pri
14.68
Mag sec
15.49
delta mag (ΔM)
0.81
Spectral class
Pri motion ra
+027
Sec motion ra
+025
Pri motion dec
-019
Sec motion dec
-002
Notes
N V (See Notes, Proper motion indicates physical)
rPM=0.518
This double is physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
214
Precise sep
99.57
Constellation
Hercules
last precise pa
214
last precise sep
99.57
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
18558+1243 BPM 891 1997 2 215 100.2 14.94 15.58 NV 185547.20+124319.3
18558+1243 BPM 891 2001 3 213 98.9 14.68 15.49 NV 185547.21+124319.2
18558+1243 BPM 891 2010 4 214 99.9 14.68 15.49 NV 185547.21+124319.2

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