18516-1719 HU  255

 
 
18h 51m 37.04s -17 18' 37.4" P.A. 166 sep 1.4 mag 8.73,9.77 Sp K0III
 
 
Coord 2000
18516-1719
Discov num
HU  255
Comp
Coord arcsec 2000
18 51 37.04 -17 18 37.4
Date first
1900
Date last
2002
Obs
13
Pa first
170
Pa last
166
P.A. Now (θ)
166°
Sep first
1.6
Sep last
1.4
Sep. Now (ρ)
1.4"
Mag pri
8.73
Mag sec
9.77
delta mag (ΔM)
1.04
Spectral class
K0III (yellow-orange)
Pri motion ra
+003
Sec motion ra
+003
Pri motion dec
-012
Sec motion dec
-012
Notes
Nature of this double is uncertain.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
165.8
Precise sep
1.35
Constellation
Sagittarius
Tycho2
6285-03554-1
last precise pa
165.8
last precise sep
1.35
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
18516-1719 HU 255 2002 13 166 1.3 8.73 9.77 K0III 185137.04-171837.4

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