17179-2247 ARA1818

 
 
17h 17m 56.06s -22 46' 29.5" P.A. 61 sep 8.6 mag 12.02,13.00
 
 
Coord 2000
17179-2247
Discov num
ARA1818
Comp
Coord arcsec 2000
17 17 56.06 -22 46 29.5
Date first
1925
Date last
2010
Obs
5
Pa first
64
Pa last
61
P.A. Now (θ)
61°
Sep first
9.7
Sep last
8.6
Sep. Now (ρ)
8.6"
Mag pri
12.02
Mag sec
13.00
delta mag (ΔM)
0.98
Spectral class
Pri motion ra
-005
Sec motion ra
-002
Pri motion dec
-013
Sec motion dec
-012
Notes
rPM=0.227 (< 0.3, Physical double)
This double is physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
61
Precise sep
8.57
Constellation
Ophiuchus
Tycho2
6812-00096-1
last precise pa
61
last precise sep
8.57
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
17179-2247 ARA1818 1999 2 62 8.5 12.02 13.00 D 171756.06-224629.5
17179-2247 ARA1818 2000 4 61 8.5 12.02 13.00 171756.06-224629.5
17179-2247 ARA1818 2010 5 59 8.1 12.02 13.00 171756.06-224629.5

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