18500-1826 J  1658

 
 
18h 50m 02.44s -18 26' 09.4" P.A. 36 sep 8.7 mag 8.44,11.20 Sp K0/1III
 
 
Coord 2000
18500-1826
Discov num
J  1658
Comp
Coord arcsec 2000
18 50 02.44 -18 26 09.4
Date first
1916
Date last
2011
Obs
7
Pa first
57
Pa last
36
P.A. Now (θ)
36°
Sep first
8.9
Sep last
8.7
Sep. Now (ρ)
8.7"
Mag pri
8.44
Mag sec
11.20
delta mag (ΔM)
2.76
Spectral class
K0/1III (yellow-orange)
Pri motion ra
+001
Sec motion ra
Pri motion dec
-003
Sec motion dec
Notes
Nature of this double is uncertain.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
35.5
Precise sep
8.68
Constellation
Sagittarius
last precise pa
35.5
last precise sep
8.68
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
18500-1826 J 1658 1941 4 80 6.0 8.44 11.20 K0/1III 185002.44-182609.4
18500-1826 J 1658 2011 6 36 8.7 8.44 11.20 K0/1III 185002.44-182609.4

If you need more information about this double, apply for a data request form to the WDS.