18408+2518 SLE 500

 
 
18h 40m 47.88s +25 18' 08.9" P.A. 179 sep 18.2 mag 11.54,12.62
 
 
Coord 2000
18408+2518
Discov num
SLE 500
Comp
Coord arcsec 2000
18 40 47.88 +25 18 08.9
Date first
1897
Date last
2010
Obs
7
Pa first
176
Pa last
179
P.A. Now (θ)
179°
Sep first
19.4
Sep last
18.2
Sep. Now (ρ)
18.2"
Mag pri
11.54
Mag sec
12.62
delta mag (ΔM)
1.08
Spectral class
Pri motion ra
+012
Sec motion ra
+007
Pri motion dec
-014
Sec motion dec
-004
Notes
rPM=0.606
Nature of this double is uncertain.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
178.9
Precise sep
18.18
Constellation
Hercules
Tycho2
2111-00940-1
HD
336741
last precise pa
178.9
last precise sep
18.18
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
18408+2518 SLE 500 2000 5 179 18.3 11.54 12.62 D 184047.88+251808.9
18408+2518 SLE 500 2002 6 179 18.2 11.54 12.62 D 184047.88+251808.9
18408+2518 SLE 500 2010 7 178 18.6 11.54 12.62 184047.88+251808.9

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