18253+2605 STF2317AD

 
 
18h 25m 20.63s +26 05' 02.8" P.A. 190 sep 44.4 mag 7.69,10.28 Sp G7III-IV dist. 269.54 pc (879.24 l.y.)
 
 
Coord 2000
18253+2605
Discov num
STF2317
Comp
AD
Coord arcsec 2000
18 25 20.63 +26 05 02.8
Date first
1897
Date last
2012
Obs
12
Pa first
189
Pa last
190
P.A. Now (θ)
190°
Sep first
44.4
Sep last
44.4
Sep. Now (ρ)
44.4"
Mag pri
7.69
Mag sec
10.28
delta mag (ΔM)
2.59
Spectral class
G7III-IV (yellow)
Pri motion ra
-003
Sec motion ra
+000
Pri motion dec
-016
Sec motion dec
-011
Notes
rPM=0.358
Nature of this double is uncertain.
 
 
18253+2605 SYSTEM COMPONENTS
 
 
Show name SAO coord_2000 discov# comp first last obs pa sep mag1 mag2 d_mag orb current
Show 86025 18253+2605 HDS2605 Aa,Ab 1991 2007 3 85 1.2 7.82 11.14 3.32
Show 86025 18253+2605 STF2317 A,BC 1897 2006 9 224 23.0 7.69 11.94 4.25
Show 86025 18253+2605 STF2317 AD 1897 2012 12 190 44.4 7.69 10.28 2.59 <===
Show 86025 18253+2605 ABH 99 AE 1988 2002 3 205 38.5 7.69 14.20 6.51
Show 86025 18253+2605 ABH 99 AF 1988 2002 3 208 69.1 7.69 13.58 5.89
Show 86025 18253+2605 STF2317 BC 1901 2008 9 315 1.4 12.50 12.70 0.20
Septuple system
7 visible stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
189.6
Precise sep
44.44
Constellation
Hercules
SAO
86025
HIP
90288
Tycho2
2110-00945-1
HD
169797
BD
BD+26 3247
Distance
269.54
Distance ly
879.24
last precise pa
189.6
last precise sep
44.44
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
18253+2605 STF2317 AD 2006 10 189 44.6 7.69 10.28 G7III-IV D 182520.63+260502.8
18253+2605 STF2317 AD 2012 12 190 44.4 7.69 10.28 G7III-IV N D 182520.63+260502.8

If you need more information about this double, apply for a data request form to the WDS.