18489+1615 STF2400AC

 
 
18h 48m 54.88s +16 15' 24.4" P.A. 161 sep 10.9 mag 8.08,10.60 Sp G0 dist. 128.7 pc (419.82 l.y.)
 
 
Coord 2000
18489+1615
Discov num
STF2400
Comp
AC
Coord arcsec 2000
18 48 54.88 +16 15 24.4
Date first
1883
Date last
2015
Obs
31
Pa first
202
Pa last
161
P.A. Now (θ)
161°
Sep first
2.1
Sep last
10.9
Sep. Now (ρ)
10.9"
Mag pri
8.08
Mag sec
10.60
delta mag (ΔM)
2.52
Spectral class
G0 (yellow)
Pri motion ra
-033
Sec motion ra
Pri motion dec
+064
Sec motion dec
Notes
N L (See Notes, Linear solution)
Nature of this double is uncertain.
 
 
18489+1615 SYSTEM COMPONENTS
 
 
Show name SAO coord_2000 discov# comp first last obs pa sep mag1 mag2 d_mag orb current
Show 104127 18489+1615 STF2400 AB 1855 2014 41 159 9.7 8.08 11.10 3.02
Show 104127 18489+1615 STF2400 A,BC 1829 2016 34 161 11.0 8.08 10.20 2.12
Show 104127 18489+1615 STF2400 AC 1883 2015 31 161 10.9 8.08 10.60 2.52 <===
Show 104127 18489+1615 STF2400 AD 1895 1900 4 157 0.4 8.08
Show 104127 18489+1615 STF2400 BC 1889 2016 32 201 1.0 11.10 10.60 0.50
Quadruple system
5 visible stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
161
Precise sep
10.9
Constellation
Hercules
SAO
104127
HIP
92317
Tycho2
1584-01984-1
HD
174224
BD
BD+16 3622
Distance
128.7
Distance ly
419.82
last precise pa
161
last precise sep
10.9
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
18489+1615 STF2400 AC 1926 29 173 4.5 8.20 10.60 G0 N 184854.91+161523.9
18489+1615 STF2400 AC 2000 31 173 10.8 8.08 10.60 G0 N 184854.88+161524.4
18489+1615 STF2400 AC 2015 31 161 10.9 8.08 10.60 G0 NL 184854.88+161524.4

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