18022-2318 B  2851

 
 
18h 02m 12.46s -23 18' 14.2" P.A. 156 sep 10.6 mag 10.20,11.40 Sp A2/3V:
 
 
Coord 2000
18022-2318
Discov num
B  2851
Comp
Coord arcsec 2000
18 02 12.46 -23 18 14.2
Date first
1910
Date last
1999
Obs
7
Pa first
155
Pa last
156
P.A. Now (θ)
156°
Sep first
10.8
Sep last
10.6
Sep. Now (ρ)
10.6"
Mag pri
10.20
Mag sec
11.40
delta mag (ΔM)
1.2
Spectral class
A2/3V: (white)
Pri motion ra
+000
Sec motion ra
+000
Pri motion dec
-010
Sec motion dec
-016
Notes
rPM=0.375
Nature of this double is uncertain.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
155.9
Precise sep
10.599
Constellation
Sagittarius
Tycho2
6842-01418-1
HD
164452
last precise pa
155.7
last precise sep
10.5
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
18022-2318 B 2851 1998 5 156 10.6 10.20 11.40 A2/3V: D 180212.46-231814.2
18022-2318 B 2851 1999 6 156 10.6 10.20 11.40 A2/3V: D 180212.46-231814.2
18022-2318 B 2851 2010 8 159 10.9 10.20 11.40 A2/3V: 180212.46-231814.2

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