17584-1747 RST3140

 
 
17h 58m 27.59s -17 46' 42.9" P.A. 320 sep 0.6 mag 11.15,11.21 Sp B8/9Ib
 
 
Coord 2000
17584-1747
Discov num
RST3140
Comp
Coord arcsec 2000
17 58 27.59 -17 46 42.9
Date first
1935
Date last
1991
Obs
3
Pa first
274
Pa last
320
P.A. Now (θ)
320°
Sep first
0.8
Sep last
0.6
Sep. Now (ρ)
0.6"
Mag pri
11.15
Mag sec
11.21
delta mag (ΔM)
0.06
Spectral class
B8/9Ib (blue-white)
Pri motion ra
+007
Sec motion ra
+007
Pri motion dec
-000
Sec motion dec
+000
Notes
N (See Notes)
Nature of this double is uncertain.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
319.6
Precise sep
0.55
Constellation
Sagittarius
Tycho2
6254-01270-1
HD
163736
last precise pa
319.6
last precise sep
0.55
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
17584-1747 RST3140 1943 2 276 0.9 10.70 13.20 B8/9Ib 175827.58-174642.7
17584-1747 RST3140 1991 3 320 0.6 11.15 11.21 B8/9Ib N 175827.59-174642.9

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