17594+2929 STF2247AB

 
 
17h 59m 24.52s +29 29' 29.6" P.A. 188 sep 11.5 mag 9.17,9.88 Sp F5
 
 
Coord 2000
17594+2929
Discov num
STF2247
Comp
AB
Coord arcsec 2000
17 59 24.52 +29 29 29.6
Date first
1830
Date last
2015
Obs
29
Pa first
191
Pa last
188
P.A. Now (θ)
188°
Sep first
11.4
Sep last
11.5
Sep. Now (ρ)
11.5"
Mag pri
9.17
Mag sec
9.88
delta mag (ΔM)
0.71
Spectral class
F5 (yellow-white)
Pri motion ra
-005
Sec motion ra
-010
Pri motion dec
-004
Sec motion dec
-011
Notes
W
rPM=0.579
Nature of this double is uncertain.
 
 
17594+2929 SYSTEM COMPONENTS
 
 
Show name SAO coord_2000 discov# comp first last obs pa sep mag1 mag2 d_mag orb current
Show 85611 17594+2929 COU1003 Aa,Ab 1973 1991 6 38 0.2 9.92 9.92 0.00
Show 85611 17594+2929 STF2247 AB 1830 2015 29 188 11.5 9.17 9.88 0.71 <===
Show 85611 17594+2929 WAL 88 AC 1944 2002 3 231 56.0 9.17 12.49 3.32
Quadruple system
3 visible stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
188.4
Precise sep
11.496
Cdsa2 id
STF 2247 AB
Constellation
Hercules
SAO
85611
Tycho2
2102-01493-1
Ra deg
17.990144444444446
De deg
29.491555555555557
last precise pa
188.4
last precise sep
11.496
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
17594+2929 STF2247 AB 2004 26 189 11.9 9.17 9.88 D 175924.52+292929.6
17594+2929 STF2247 AB 2013 28 188 11.4 9.17 9.88 F5 D 175924.52+292929.6
17594+2929 STF2247 AB 2015 29 188 11.5 9.17 9.88 F5 W 175924.52+292929.6

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