17557+4626 BAR  43AB

 
 
17h 55m 39.95s +46 25' 31.8" P.A. 257 sep 2.1 mag 10.21,13.30 Sp A5
 
 
Coord 2000
17557+4626
Discov num
BAR  43
Comp
AB
Coord arcsec 2000
17 55 39.95 +46 25 31.8
Date first
1921
Date last
2000
Obs
3
Pa first
78
Pa last
257
P.A. Now (θ)
257°
Sep first
2.0
Sep last
2.1
Sep. Now (ρ)
2.1"
Mag pri
10.21
Mag sec
13.30
delta mag (ΔM)
3.09
Spectral class
A5 (white)
Pri motion ra
+006
Sec motion ra
Pri motion dec
-001
Sec motion dec
Notes
Nature of this double is uncertain.
 
 
17557+4626 SYSTEM COMPONENTS
 
 
Show name SAO coord_2000 discov# comp first last obs pa sep mag1 mag2 d_mag orb current
Show 17557+4626 BAR 43 AB 1921 2000 3 257 2.1 10.21 13.30 3.09 <===
Show 17557+4626 BAR 43 AC 1893 2015 9 313 33.4 10.21 11.43 1.22
Triple system
3 visible stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
257.4
Precise sep
2.13
Constellation
Hercules
Tycho2
3511-00887-1
last precise pa
257.4
last precise sep
2.13
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
17557+4626 BAR 43 AB 1948 2 255 2.1 10.21 13.30 A5 175539.95+462531.8
17557+4626 BAR 43 AB 2000 3 257 2.1 10.21 13.30 A5 175539.95+462531.8

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