18126+4123 STF2298AB

 
 
18h 12m 38.87s +41 23' 08.1" P.A. 175 sep 1.8 mag 8.76,9.94 Sp F5 dist. 120.92 pc (394.44 l.y.)
 
 
Coord 2000
18126+4123
Discov num
STF2298
Comp
AB
Coord arcsec 2000
18 12 38.87 +41 23 08.1
Date first
1831
Date last
2011
Obs
40
Pa first
186
Pa last
175
P.A. Now (θ)
175°
Sep first
2.4
Sep last
1.8
Sep. Now (ρ)
1.8"
Mag pri
8.76
Mag sec
9.94
delta mag (ΔM)
1.18
Spectral class
F5 (yellow-white)
Pri motion ra
+012
Sec motion ra
+012
Pri motion dec
+026
Sec motion dec
+026
Notes
Nature of this double is uncertain.
 
 
18126+4123 SYSTEM COMPONENTS
 
 
Show name SAO coord_2000 discov# comp first last obs pa sep mag1 mag2 d_mag orb current
Show 47304 18126+4123 STF2298 AB 1831 2011 40 175 1.8 8.76 9.94 1.18 <===
Show 47304 18126+4123 STF2298 AC 1881 2006 8 40 73.3 8.76 12.43 3.67
Show 47304 18126+4123 WAL 89 AB,D 1944 2006 4 71 46.6 8.67 13.27 4.60
Quadruple system
5 visible stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
174.6
Precise sep
1.845
Constellation
Hercules
SAO
47304
HIP
89240
Tycho2
3111-02076-1
HD
167303
BD
BD+41 3010
Distance
120.92
Distance ly
394.44
last precise pa
174.6
last precise sep
1.845
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
18126+4123 STF2298 AB 2005 40 176 2.0 8.76 9.94 F5 D 181238.87+412308.1
18126+4123 STF2298 AB 2010 41 175 1.9 8.76 9.94 F5 D 181238.87+412308.1
18126+4123 STF2298 AB 2011 42 175 1.8 8.76 9.94 F5 181238.87+412308.1

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