16571+4903 BEM  23

 
 
16h 57m 12.23s +49 03' 17.6" P.A. 21 sep 24.9 mag 12.89,12.83
 
 
Coord 2000
16571+4903
Discov num
BEM  23
Comp
Coord arcsec 2000
16 57 12.23 +49 03 17.6
Date first
1931
Date last
2010
Obs
4
Pa first
23
Pa last
21
P.A. Now (θ)
21°
Sep first
25.2
Sep last
24.9
Sep. Now (ρ)
24.9"
Mag pri
12.89
Mag sec
12.83
delta mag (ΔM)
0.06
Spectral class
Pri motion ra
+005
Sec motion ra
+008
Pri motion dec
-014
Sec motion dec
-001
Notes
rPM=0.897
This double is not physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
21.3
Precise sep
24.89
Constellation
Hercules
last precise pa
21.3
last precise sep
24.918
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
16571+4903 BEM 23 1931 1 23 25.2 13.20 13.50 165760.00+490300.0
16571+4903 BEM 23 1998 2 22 24.9 12.80 12.90 D 165712.23+490317.6
16571+4903 BEM 23 2003 3 21 24.9 12.80 12.90 D 165712.23+490317.6
16571+4903 BEM 23 2010 4 22 24.9 12.89 12.83 165712.23+490317.6

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