17386+2219 COU 316BC

 
 
17h 38m 33.89s +22 18' 27.0" P.A. 281 sep 1.8 mag 11.70,11.90
 
 
Coord 2000
17386+2219
Discov num
COU 316
Comp
BC
Coord arcsec 2000
17 38 33.89 +22 18 27.0
Date first
1968
Date last
1968
Obs
1
Pa first
281
Pa last
281
P.A. Now (θ)
281°
Sep first
1.8
Sep last
1.8
Sep. Now (ρ)
1.8"
Mag pri
11.70
Mag sec
11.90
delta mag (ΔM)
0.2
Spectral class
Pri motion ra
+005
Sec motion ra
Pri motion dec
-004
Sec motion dec
Notes
Nature of this double is uncertain.
 
 
17386+2219 SYSTEM COMPONENTS
 
 
Show name SAO coord_2000 discov# comp first last obs pa sep mag1 mag2 d_mag orb current
Show 17386+2219 COU 316 AB 1894 1999 4 188 34.2 11.00 11.70 0.70
Show 17386+2219 COU 316 BC 1968 1968 1 281 1.8 11.70 11.90 0.20 <===
Triple system
3 visible stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
280.9
Precise sep
1.76
Constellation
Hercules
last precise pa
280.9
last precise sep
1.76
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
17386+2219 COU 316 BC 1968 1 281 1.8 11.70 11.90 173833.89+221827.0

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