17207+3228 DOR   1BC

 
 
17h 20m 30.80s +32 32' 49.6" P.A. 252 sep 5.7 mag 10.78,13.30
 
 
Coord 2000
17207+3228
Discov num
DOR   1
Comp
BC
Coord arcsec 2000
17 20 30.80 +32 32 49.6
Date first
1900
Date last
2015
Obs
5
Pa first
217
Pa last
252
P.A. Now (θ)
252°
Sep first
8.7
Sep last
5.7
Sep. Now (ρ)
5.7"
Mag pri
10.78
Mag sec
13.30
delta mag (ΔM)
2.52
Spectral class
Pri motion ra
-011
Sec motion ra
-036
Pri motion dec
-017
Sec motion dec
-006
Notes
N U (See Notes, Proper motion indicates non-physical)
rPM=0.748
This double is not physical.
 
 
17207+3228 SYSTEM COMPONENTS
 
 
Show name SAO coord_2000 discov# comp first last obs pa sep mag1 mag2 d_mag orb current
Show 72 Her 65963 17207+3228 DOR 1 AB 1853 2002 13 340 308.1 5.45 10.78 5.33
Show 65963 17207+3228 ARN 14 AD 1991 2013 5 60 396.4 5.45 9.01 3.56
Show 65963 17207+3228 ARN 14 AE 1991 2002 4 51 302.2 5.45 10.36 4.91
Show 65963 17207+3228 ARN 14 AF 1991 2002 4 104 383.2 5.45 10.67 5.22
Show 17207+3228 DOR 1 BC 1900 2015 5 252 5.7 10.78 13.30 2.52 <===
Sextuple system
6 visible stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
251.9
Precise sep
5.695
Constellation
Hercules
last precise pa
251.9
last precise sep
5.695
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
17207+3228 DOR 1 BC 1911 2 216 8.8 9.70 12.90 N 172008.57+322800.0
17207+3228 DOR 1 BC 2000 3 244 6.2 10.78 14.00 NU 172030.80+323249.6
17207+3228 DOR 1 BC 2002 4 247 6.2 10.78 13.30 NU 172030.80+323249.6
17207+3228 DOR 1 BC 2015 5 252 5.7 10.78 13.30 NU 172030.80+323249.6

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