18319+2253 SLE 188

 
 
18h 31m 55.62s +22 52' 44.6" P.A. 99 sep 17.7 mag 12.58,13.90
 
 
Coord 2000
18319+2253
Discov num
SLE 188
Comp
Coord arcsec 2000
18 31 55.62 +22 52 44.6
Date first
1894
Date last
2011
Obs
6
Pa first
100
Pa last
99
P.A. Now (θ)
99°
Sep first
17.8
Sep last
17.7
Sep. Now (ρ)
17.7"
Mag pri
12.58
Mag sec
13.90
delta mag (ΔM)
1.32
Spectral class
Pri motion ra
+001
Sec motion ra
+002
Pri motion dec
-002
Sec motion dec
-005
Notes
rPM=0.587
Nature of this double is uncertain.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
99.3
Precise sep
17.7
Constellation
Hercules
Tycho2
2106-00664-1
last precise pa
99.3
last precise sep
17.7
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
18319+2253 SLE 188 1999 3 99 17.7 12.58 13.90 D 183155.62+225244.6
18319+2253 SLE 188 2001 4 99 17.7 12.58 13.90 D 183155.62+225244.6
18319+2253 SLE 188 2011 5 99 17.7 12.58 13.90 D 183155.62+225244.6

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