17289-2936 B   341

 
 
17h 28m 51.17s -29 35' 33.5" P.A. 248 sep 0.4 mag 9.30,9.60 Sp B8/9V
 
 
Coord 2000
17289-2936
Discov num
B   341
Comp
Coord arcsec 2000
17 28 51.17 -29 35 33.5
Date first
1926
Date last
2008
Obs
3
Pa first
269
Pa last
248
P.A. Now (θ)
248°
Sep first
0.3
Sep last
0.4
Sep. Now (ρ)
0.4"
Mag pri
9.30
Mag sec
9.60
delta mag (ΔM)
0.3
Spectral class
B8/9V (blue-white)
Pri motion ra
-005
Sec motion ra
Pri motion dec
-001
Sec motion dec
Notes
Nature of this double is uncertain.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
247.5
Precise sep
0.4
Constellation
Ophiuchus
SAO
185436
Tycho2
6838-00584-1
HD
158154
last precise pa
247.5
last precise sep
0.4
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
17289-2936 B 341 1990 2 251 0.4 9.30 9.60 B8/9V 172851.17-293533.5
17289-2936 B 341 2008 3 248 0.4 9.30 9.60 B8/9V 172851.17-293533.5

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