17217-1712 ARA 250

 
 
17h 21m 39.95s -17 11' 29.5" P.A. 13 sep 8.3 mag 10.72,11.80
 
 
Coord 2000
17217-1712
Discov num
ARA 250
Comp
Coord arcsec 2000
17 21 39.95 -17 11 29.5
Date first
1916
Date last
2011
Obs
3
Pa first
19
Pa last
13
P.A. Now (θ)
13°
Sep first
5.9
Sep last
8.3
Sep. Now (ρ)
8.3"
Mag pri
10.72
Mag sec
11.80
delta mag (ΔM)
1.08
Spectral class
Pri motion ra
+002
Sec motion ra
+020
Pri motion dec
-009
Sec motion dec
+052
Notes
rPM=1.142
This double is not physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
12.9
Precise sep
8.3
Constellation
Ophiuchus
Tycho2
6238-00480-1
last precise pa
12.9
last precise sep
8.3
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
17217-1712 ARA 250 1916 1 19 5.9 10.72 11.80 172139.95-171129.5
17217-1712 ARA 250 2011 2 13 8.3 10.72 11.80 172139.95-171129.5

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