17021-2718 LDS 580

 
 
17h 02m 09.42s -27 18' 09.5" P.A. 198 sep 14.5 mag 13.30,13.80
 
 
Coord 2000
17021-2718
Discov num
LDS 580
Comp
Coord arcsec 2000
17 02 09.42 -27 18 09.5
Date first
1920
Date last
2010
Obs
6
Pa first
225
Pa last
198
P.A. Now (θ)
198°
Sep first
15.0
Sep last
14.5
Sep. Now (ρ)
14.5"
Mag pri
13.30
Mag sec
13.80
delta mag (ΔM)
0.5
Spectral class
Pri motion ra
+028
Sec motion ra
-018
Pri motion dec
-181
Sec motion dec
-125
Notes
rPM=0.396
Nature of this double is uncertain.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
198.4
Precise sep
14.52
Constellation
Ophiuchus
last precise pa
198.4
last precise sep
14.52
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
17021-2718 LDS 580 1998 3 199 14.4 13.30 13.80 D 170209.42-271809.5
17021-2718 LDS 580 1999 4 198 14.5 13.30 13.80 D 170209.42-271809.5
17021-2718 LDS 580 2010 6 199 14.5 13.30 13.80 170209.42-271809.5

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