17517-1742 TDT 537

 
 
17h 51m 41.80s -17 42' 15.8" P.A. 231 sep 0.5 mag 11.17,11.29 Sp B8
 
 
Coord 2000
17517-1742
Discov num
TDT 537
Comp
Coord arcsec 2000
17 51 41.80 -17 42 15.8
Date first
1991
Date last
1991
Obs
1
Pa first
231
Pa last
231
P.A. Now (θ)
231°
Sep first
0.5
Sep last
0.5
Sep. Now (ρ)
0.5"
Mag pri
11.17
Mag sec
11.29
delta mag (ΔM)
0.12
Spectral class
B8 (blue-white)
Pri motion ra
-003
Sec motion ra
-003
Pri motion dec
-001
Sec motion dec
-001
Notes
Nature of this double is uncertain.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
231.1
Precise sep
0.49
Constellation
Sagittarius
Tycho2
6253-01478-1
HD
312294
last precise pa
231.1
last precise sep
0.49
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
17517-1742 TDT 537 1991 1 231 0.5 11.17 11.29 175141.80-174215.8

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