18031+4828 STF2277AB

 
 
18H 03M 08.87S +48 27' 51.3" P.A. 128 SEP 26.7 MAG 6.25,8.93 SP A1V DIST. 164.74 PC (537.38 L.Y.)
 
 
Coord 2000
18031+4828
Discov num
STF2277
Comp
AB
Coord arcsec 2000
18 03 08.87 +48 27 51.3
Date first
1830
Date last
2015
Obs
66
Pa first
118
Pa last
128
P.A. Now (θ)
128°
Sep first
27.6
Sep last
26.7
Sep. Now (ρ)
26.7"
Mag pri
6.25
Mag sec
8.93
delta mag (ΔM)
2.68
Spectral class
A1V (white)
Pri motion ra
+018
Sec motion ra
+005
Pri motion dec
+011
Sec motion dec
-012
Notes
N (See Notes)
Nature of this double is uncertain.
 
 
18031+4828 SYSTEM COMPONENTS
 
 
Show name SAO coord_2000 discov# comp first last obs pa sep mag1 mag2 d_mag orb current
Show 47173 18031+4828 STF2277 AB 1830 2015 66 128 26.7 6.25 8.93 2.68 <===
Show 47173 18031+4828 STF2277 AC 1895 2015 21 297 99.7 6.25 10.19 3.94
Show 18031+4828 STF2277 BC 1895 2014 17 300 126.6 8.93 10.19 1.26
Triple system
3 visible stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Constellation
Hercules
SAO
47173
HIP
88415
Tycho2
3528-02120-1
HD
165358
HR
6753
BD
BD+48 2627
Distance
164.74
Distance ly
537.38
last precise pa
127.5
last precise sep
26.68