17272-1720 ARA 253

 
 
17h 27m 10.55s -17 20' 18.0" P.A. 286 sep 11.2 mag 12.40,12.70
 
 
Coord 2000
17272-1720
Discov num
ARA 253
Comp
Coord arcsec 2000
17 27 10.55 -17 20 18.0
Date first
1916
Date last
2010
Obs
6
Pa first
286
Pa last
286
P.A. Now (θ)
286°
Sep first
10.9
Sep last
11.2
Sep. Now (ρ)
11.2"
Mag pri
12.40
Mag sec
12.70
delta mag (ΔM)
0.3
Spectral class
Pri motion ra
-006
Sec motion ra
-004
Pri motion dec
-010
Sec motion dec
-004
Notes
rPM=0.542
Nature of this double is uncertain.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
286.4
Precise sep
11.22
Constellation
Ophiuchus
Tycho2
6238-03281-1
last precise pa
286.4
last precise sep
11.22
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
17272-1720 ARA 253 1999 4 287 11.3 12.40 12.70 D 172710.55-172018.0
17272-1720 ARA 253 2010 6 286 11.0 12.40 12.70 172710.55-172018.0

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