17490+2450 J   754AB

 
 
17h 49m 00.69s +24 50' 19.9" P.A. 49 sep 1.7 mag 9.72,10.72 Sp A7
 
 
Coord 2000
17490+2450
Discov num
J   754
Comp
AB
Coord arcsec 2000
17 49 00.69 +24 50 19.9
Date first
1912
Date last
2014
Obs
28
Pa first
54
Pa last
49
P.A. Now (θ)
49°
Sep first
1.0
Sep last
1.7
Sep. Now (ρ)
1.7"
Mag pri
9.72
Mag sec
10.72
delta mag (ΔM)
1
Spectral class
A7 (white)
Pri motion ra
-005
Sec motion ra
-005
Pri motion dec
-014
Sec motion dec
-014
Notes
Nature of this double is uncertain.
 
 
17490+2450 SYSTEM COMPONENTS
 
 
Show name SAO coord_2000 discov# comp first last obs pa sep mag1 mag2 d_mag orb current
Show 85438 17490+2450 J 754 AB 1912 2014 28 49 1.7 9.72 10.72 1.00 <===
Show 85438 17490+2450 J 754 AC 1895 2011 6 302 41.1 9.72 12.84 3.12
Triple system
3 visible stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
48.6
Precise sep
1.71
Constellation
Hercules
SAO
85438
Tycho2
2081-01596-1
last precise pa
48.6
last precise sep
1.71
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
17490+2450 J 754 AB 2001 25 48 1.7 9.72 10.72 A7 174900.69+245019.9
17490+2450 J 754 AB 2005 26 48 1.7 9.72 10.72 A7 174900.69+245019.9
17490+2450 J 754 AB 2010 27 49 1.8 9.72 10.72 A7 174900.69+245019.9
17490+2450 J 754 AB 2014 28 49 1.7 9.72 10.72 A7 174900.69+245019.9

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