18272+0012 STF2316Aa,Ab

 
 
18h 27m 12.51s +00 11' 46.1" P.A. 298 sep 0.2 mag 5.21, Sp G0III+A6V dist. 143.88 pc (469.34 l.y.)
 
 
Coord 2000
18272+0012
Discov num
STF2316
Comp
Aa,Ab
Coord arcsec 2000
18 27 12.51 +00 11 46.1
Date first
1951
Date last
2009
Obs
4
Pa first
290
Pa last
298
P.A. Now (θ)
298°
Sep first
0.1
Sep last
0.2
Sep. Now (ρ)
0.2"
Mag pri
5.21
Mag sec
delta mag (ΔM)
Spectral class
G0III+A6V (yellow/white)
Pri motion ra
-001
Sec motion ra
Pri motion dec
-006
Sec motion dec
Notes
N (See Notes)
Nature of this double is uncertain.
 
 
18272+0012 SYSTEM COMPONENTS
 
 
Show name SAO coord_2000 discov# comp first last obs pa sep mag1 mag2 d_mag orb current
Show 123497 18272+0012 STF2316 Aa,Ab 1951 2009 4 298 0.2 5.21 <===
Show 59 Ser 123497 18272+0012 STF2316 AB 1822 2016 163 320 3.7 5.38 7.62 2.24
Triple system
2 visible stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
297.8
Precise sep
0.216
Other name
d Ser
Var name
D Ser
Constellation
Serpens
SAO
123497
HIP
90441
Tycho2
0433-00595-1
HD
169985
HR
6918
GC
25176
BD
BD+00 3936
Flamsteed
59 Serpentis
Flamsteed name
59 Ser
Distance
143.88
Distance ly
469.34
last precise pa
297.8
last precise sep
0.216
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
18272+0012 STF2316 Aa,Ab 1976 2 157 0.3 5.21   G0III+A6V N 182712.51+001146.1
18272+0012 STF2316 Aa,Ab 2009 3 271 0.0 5.21   G0III+A6V N 182712.51+001146.1

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