17257-4516 B  1857

 
 
17h 25m 41.75s -45 16' 00.4" P.A. 51 sep 4.5 mag 8.14,13.50 Sp A5V
 
 
Coord 2000
17257-4516
Discov num
B  1857
Comp
Coord arcsec 2000
17 25 41.75 -45 16 00.4
Date first
1930
Date last
2000
Obs
3
Pa first
63
Pa last
51
P.A. Now (θ)
51°
Sep first
4.0
Sep last
4.5
Sep. Now (ρ)
4.5"
Mag pri
8.14
Mag sec
13.50
delta mag (ΔM)
5.36
Spectral class
A5V (white)
Pri motion ra
+004
Sec motion ra
Pri motion dec
-017
Sec motion dec
Notes
Nature of this double is uncertain.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
50.7
Precise sep
4.45
Constellation
Scorpius
SAO
227939
Tycho2
8341-00765-1
HD
157477
last precise pa
50.7
last precise sep
4.45
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
17257-4516 B 1857 1930 1 63 4.0 8.14 13.50 A5V 172541.75-451600.4
17257-4516 B 1857 2000 3 51 4.5 8.14 13.50 A5V 172541.75-451600.4

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