17207-5625 FIN 255AB

 
 
17h 20m 40.27s -56 25' 27.9" P.A. 108 sep 0.4 mag 9.50,9.70 Sp A0/1IV
 
 
Coord 2000
17207-5625
Discov num
FIN 255
Comp
AB
Coord arcsec 2000
17 20 40.27 -56 25 27.9
Date first
1931
Date last
2008
Obs
3
Pa first
122
Pa last
108
P.A. Now (θ)
108°
Sep first
0.3
Sep last
0.4
Sep. Now (ρ)
0.4"
Mag pri
9.50
Mag sec
9.70
delta mag (ΔM)
0.2
Spectral class
A0/1IV (white)
Pri motion ra
-008
Sec motion ra
Pri motion dec
-007
Sec motion dec
Notes
N (See Notes)
Nature of this double is uncertain.
 
 
17207-5625 SYSTEM COMPONENTS
 
 
Show name SAO coord_2000 discov# comp first last obs pa sep mag1 mag2 d_mag orb current
Show 244640 17207-5625 FIN 255 AB 1931 2008 3 108 0.4 9.50 9.70 0.20 <===
Show 244640 17207-5625 HJ 4938 AB,C 1835 2000 14 109 25.0 9.49 9.28 0.21
Triple system
4 visible stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
107.9
Precise sep
0.352
Constellation
Ara
SAO
244640
Tycho2
8736-02504-1
HD
156412
last precise pa
107.9
last precise sep
0.352
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
17207-5625 FIN 255 AB 1990 2 108 0.3 9.50 9.70 A0/1IV N 172040.27-562527.9
17207-5625 FIN 255 AB 2008 3 108 0.4 9.50 9.70 A0/1IV N 172040.27-562527.9

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