17555-4759 B  1873

 
 
17h 55m 31.08s -47 58' 44.3" P.A. 342 sep 0.2 mag 8.80,9.20 Sp A0V
 
 
Coord 2000
17555-4759
Discov num
B  1873
Comp
Coord arcsec 2000
17 55 31.08 -47 58 44.3
Date first
1931
Date last
2010
Obs
7
Pa first
174
Pa last
342
P.A. Now (θ)
342°
Sep first
0.3
Sep last
0.2
Sep. Now (ρ)
0.2"
Mag pri
8.80
Mag sec
9.20
delta mag (ΔM)
0.4
Spectral class
A0V (white)
Pri motion ra
+003
Sec motion ra
Pri motion dec
-023
Sec motion dec
Notes
Nature of this double is uncertain.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
342.3
Precise sep
0.173
Constellation
Ara
SAO
228543
Tycho2
8348-02326-1
HD
162842
last precise pa
342.3
last precise sep
0.173
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
17555-4759 B 1873 1990 5 35 0.1 8.80 9.20 A0V 175531.08-475844.3
17555-4759 B 1873 2008 6 170 0.2 8.80 9.20 A0V 175531.08-475844.3
17555-4759 B 1873 2010 7 342 0.2 8.80 9.20 A0V 175531.08-475844.3

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