18105-2223 BRT1516

 
 
18h 10m 31.17s -22 22' 54.8" P.A. 285 sep 3.9 mag 11.85,12.40
 
 
Coord 2000
18105-2223
Discov num
BRT1516
Comp
Coord arcsec 2000
18 10 31.17 -22 22 54.8
Date first
1920
Date last
1999
Obs
3
Pa first
276
Pa last
285
P.A. Now (θ)
285°
Sep first
3.1
Sep last
3.9
Sep. Now (ρ)
3.9"
Mag pri
11.85
Mag sec
12.40
delta mag (ΔM)
0.55
Spectral class
Pri motion ra
+035
Sec motion ra
-062
Pri motion dec
-017
Sec motion dec
+022
Notes
rPM=1.589
This double is not physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
284.8
Precise sep
3.855
Constellation
Sagittarius
Tycho2
6276-00407-1
last precise pa
284.8
last precise sep
3.855
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
18105-2223 BRT1516 1998 2 285 3.8 11.85 12.40 D 181031.17-222254.8
18105-2223 BRT1516 1999 3 285 3.9 11.85 12.40 D 181031.17-222254.8

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