16388+3923 UC  221

 
 
16h 38m 45.74s +39 23' 20.5" P.A. 227 sep 17.5 mag 11.86,14.43
 
 
Coord 2000
16388+3923
Discov num
UC  221
Comp
Coord arcsec 2000
16 38 45.74 +39 23 20.5
Date first
1998
Date last
2015
Obs
5
Pa first
227
Pa last
227
P.A. Now (θ)
227°
Sep first
17.4
Sep last
17.5
Sep. Now (ρ)
17.5"
Mag pri
11.86
Mag sec
14.43
delta mag (ΔM)
2.57
Spectral class
Pri motion ra
+003
Sec motion ra
-009
Pri motion dec
-062
Sec motion dec
-078
Notes
V (Proper motion indicates physical)
rPM=0.255 (< 0.3, Physical double)
This double is physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
226.9
Precise sep
17.512
Constellation
Hercules
Tycho2
3063-00140-1
last precise pa
226.9
last precise sep
17.512
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
16388+3923 UC 221 1998 1 227 17.4 11.86 14.43 V 163845.74+392320.5
16388+3923 UC 221 2002 2 227 17.4 11.86 14.43 VD 163845.74+392320.5
16388+3923 UC 221 2010 3 227 17.4 11.86 14.43 V 163845.74+392320.5
16388+3923 UC 221 2013 4 227 17.5 11.86 14.43 V 163845.74+392320.5
16388+3923 UC 221 2015 5 227 17.5 11.86 14.43 V 163845.74+392320.5

If you need more information about this double, apply for a data request form to the WDS.