16415+2147 J   738

 
 
16h 41m 30.65s +21 47' 27.9" P.A. 248 sep 2.2 mag 11.66,9.50
 
 
Coord 2000
16415+2147
Discov num
J   738
Comp
Coord arcsec 2000
16 41 30.65 +21 47 27.9
Date first
1912
Date last
2007
Obs
18
Pa first
239
Pa last
248
P.A. Now (θ)
248°
Sep first
1.1
Sep last
2.2
Sep. Now (ρ)
2.2"
Mag pri
11.66
Mag sec
9.50
delta mag (ΔM)
2.16
Spectral class
Pri motion ra
-013
Sec motion ra
Pri motion dec
+045
Sec motion dec
Notes
Nature of this double is uncertain.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
247.5
Precise sep
2.2
Constellation
Hercules
Tycho2
1532-01179-1
last precise pa
247.5
last precise sep
2.2
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
16415+2147 J 738 2007 17 248 2.2 11.66 9.50 164130.65+214727.9

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