17516-4811 I   617

 
 
17h 51m 38.90s -48 11' 10.7" P.A. 263 sep 2 mag 8.91,11.13 Sp B9III
 
 
Coord 2000
17516-4811
Discov num
I   617
Comp
Coord arcsec 2000
17 51 38.90 -48 11 10.7
Date first
1909
Date last
1991
Obs
5
Pa first
260
Pa last
263
P.A. Now (θ)
263°
Sep first
2.0
Sep last
2.0
Sep. Now (ρ)
2"
Mag pri
8.91
Mag sec
11.13
delta mag (ΔM)
2.22
Spectral class
B9III (blue-white)
Pri motion ra
+007
Sec motion ra
Pri motion dec
+000
Sec motion dec
Notes
Nature of this double is uncertain.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
263.4
Precise sep
2.013
Constellation
Ara
SAO
228488
Tycho2
8348-02277-1
HD
162071
last precise pa
263.4
last precise sep
2.013
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
17516-4811 I 617 1991 5 263 2.0 8.91 11.13 B9III 175138.90-481110.7

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