17228+2155 LDS4740

 
 
17H 22M 48.29S +21 55' 12.4" P.A. 239 SEP 9.6 MAG 15.90,17.80
 
 
Coord 2000
17228+2155
Discov num
LDS4740
Comp
Coord arcsec 2000
17 22 48.29 +21 55 12.4
Date first
1960
Date last
2010
Obs
4
Pa first
254
Pa last
239
P.A. Now (θ)
239°
Sep first
10.0
Sep last
9.6
Sep. Now (ρ)
9.6"
Mag pri
15.90
Mag sec
17.80
delta mag (ΔM)
1.9
Spectral class
Pri motion ra
+002
Sec motion ra
+010
Pri motion dec
-017
Sec motion dec
-003
Notes
Nature of this double is uncertain.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Constellation
Hercules
last precise pa
239.2
last precise sep
9.64