18138-2850 B  2436

 
 
18h 13m 46.61s -28 49' 37.4" P.A. 277 sep 6.8 mag 8.77,12.30 Sp K2/3III
 
 
Coord 2000
18138-2850
Discov num
B  2436
Comp
Coord arcsec 2000
18 13 46.61 -28 49 37.4
Date first
1930
Date last
1999
Obs
2
Pa first
270
Pa last
277
P.A. Now (θ)
277°
Sep first
7.0
Sep last
6.8
Sep. Now (ρ)
6.8"
Mag pri
8.77
Mag sec
12.30
delta mag (ΔM)
3.53
Spectral class
K2/3III (yellow-orange)
Pri motion ra
-009
Sec motion ra
Pri motion dec
+018
Sec motion dec
Notes
Nature of this double is uncertain.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
276.6
Precise sep
6.82
Constellation
Sagittarius
SAO
186494
Tycho2
6855-01332-1
HD
166855
last precise pa
276.6
last precise sep
6.82
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
18138-2850 B 2436 1999 2 277 6.8 8.77 12.30 K2/3III D 181346.61-284937.4

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