17056-1807 ARA 245

 
 
17h 05m 40.31s -18 07' 17.4" P.A. 34 sep 6.6 mag 13.23,13.45
 
 
Coord 2000
17056-1807
Discov num
ARA 245
Comp
Coord arcsec 2000
17 05 40.31 -18 07 17.4
Date first
1916
Date last
2000
Obs
5
Pa first
46
Pa last
34
P.A. Now (θ)
34°
Sep first
6.1
Sep last
6.6
Sep. Now (ρ)
6.6"
Mag pri
13.23
Mag sec
13.45
delta mag (ΔM)
0.22
Spectral class
Pri motion ra
-025
Sec motion ra
-009
Pri motion dec
-043
Sec motion dec
-007
Notes
B (Blue magnitudes)
rPM=0.792
Nature of this double is uncertain.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
33.8
Precise sep
6.611
Constellation
Ophiuchus
last precise pa
33.8
last precise sep
6.611
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
17056-1807 ARA 245 1998 2 34 6.6 13.23 13.45 DB 170540.32-180715.5
17056-1807 ARA 245 2000 4 34 6.6 13.23 13.45 DB 170540.31-180717.4
17056-1807 ARA 245 2010 6 33 5.7 13.23 13.45 B 170540.31-180717.4

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