18026+0325 HDS2539

 
 
18h 02m 33.82s +03 25' 13.5" P.A. 129 sep 0.3 mag 8.40,10.56 Sp G5 dist. 218.34 pc (712.23 l.y.)
 
 
Coord 2000
18026+0325
Discov num
HDS2539
Comp
Coord arcsec 2000
18 02 33.82 +03 25 13.5
Date first
1991
Date last
2015
Obs
4
Pa first
123
Pa last
129
P.A. Now (θ)
129°
Sep first
0.3
Sep last
0.3
Sep. Now (ρ)
0.3"
Mag pri
8.40
Mag sec
10.56
delta mag (ΔM)
2.16
Spectral class
G5 (yellow)
Pri motion ra
+008
Sec motion ra
Pri motion dec
-006
Sec motion dec
Notes
Nature of this double is uncertain.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Constellation
Ophiuchus
HIP
88355
Tycho2
0434-00632-1
HD
164734
BD
BD+03 3572
Distance
218.34
Distance ly
712.23
last precise pa
128.7
last precise sep
0.322
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
18026+0325 HDS2539 1991 1 123 0.3 8.40 10.56 G5 180233.82+032513.5
18026+0325 HDS2539 2015 2 129 0.3 8.40 10.56 G5 180233.82+032513.5

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