17428+2017 COU  28

 
 
17h 42m 57.08s +20 18' 04.9" P.A. 169 sep 3.5 mag 12.00,12.00
 
 
Coord 2000
17428+2017
Discov num
COU  28
Comp
Coord arcsec 2000
17 42 57.08 +20 18 04.9
Date first
1963
Date last
2001
Obs
4
Pa first
175
Pa last
169
P.A. Now (θ)
169°
Sep first
2.7
Sep last
3.5
Sep. Now (ρ)
3.5"
Mag pri
12.00
Mag sec
12.00
delta mag (ΔM)
0
Spectral class
Pri motion ra
-001
Sec motion ra
+000
Pri motion dec
+021
Sec motion dec
-021
Notes
rPM=1.998
This double is not physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
168.9
Precise sep
3.545
Constellation
Hercules
last precise pa
168.9
last precise sep
3.545
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
17428+2017 COU 28 2000 3 171 3.7 12.00 12.00 D 174257.08+201804.9
17428+2017 COU 28 2001 4 169 3.5 12.00 12.00 D 174257.08+201804.9

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