18154-1956 B  1883

 
 
18h 15m 21.18s -19 56' 17.7" P.A. 53 sep 0.2 mag 8.90,9.00 Sp G3V
 
 
Coord 2000
18154-1956
Discov num
B  1883
Comp
Coord arcsec 2000
18 15 21.18 -19 56 17.7
Date first
1930
Date last
2017
Obs
6
Pa first
58
Pa last
53
P.A. Now (θ)
53°
Sep first
0.2
Sep last
0.2
Sep. Now (ρ)
0.2"
Mag pri
8.90
Mag sec
9.00
delta mag (ΔM)
0.1
Spectral class
G3V (yellow)
Pri motion ra
-078
Sec motion ra
Pri motion dec
-080
Sec motion dec
Notes
Nature of this double is uncertain.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
53.1
Precise sep
0.176
Constellation
Sagittarius
SAO
161220
Tycho2
6272-02221-1
HD
167315
last precise pa
53.1
last precise sep
0.176
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
18154-1956 B 1883 1939 5 343 0.2 8.90 9.00 G3V 181521.18-195617.7
18154-1956 B 1883 2017 6 53 0.2 8.90 9.00 G3V 181521.18-195617.7

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