17496+2226 COU 502

 
 
17h 49m 37.66s +22 25' 30.7" P.A. 40 sep 2 mag 9.71,11.54 Sp A2
 
 
Coord 2000
17496+2226
Discov num
COU 502
Comp
Coord arcsec 2000
17 49 37.66 +22 25 30.7
Date first
1970
Date last
2010
Obs
5
Pa first
41
Pa last
40
P.A. Now (θ)
40°
Sep first
2.1
Sep last
2.0
Sep. Now (ρ)
2"
Mag pri
9.71
Mag sec
11.54
delta mag (ΔM)
1.83
Spectral class
A2 (white)
Pri motion ra
+009
Sec motion ra
+009
Pri motion dec
-007
Sec motion dec
-007
Notes
Nature of this double is uncertain.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
40.3
Precise sep
1.95
Constellation
Hercules
Tycho2
1564-00485-1
last precise pa
40.3
last precise sep
1.95
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
17496+2226 COU 502 2005 4 39 1.9 9.71 11.54 A2 174937.66+222530.7
17496+2226 COU 502 2010 5 40 2.0 9.71 11.54 A2 174937.66+222530.7

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