18420+2528 SLE 503

 
 
18h 41m 58.21s +25 27' 33.0" P.A. 130 sep 9.7 mag 11.37,12.40
 
 
Coord 2000
18420+2528
Discov num
SLE 503
Comp
Coord arcsec 2000
18 41 58.21 +25 27 33.0
Date first
1982
Date last
2010
Obs
4
Pa first
128
Pa last
130
P.A. Now (θ)
130°
Sep first
10.2
Sep last
9.7
Sep. Now (ρ)
9.7"
Mag pri
11.37
Mag sec
12.40
delta mag (ΔM)
1.03
Spectral class
Pri motion ra
-009
Sec motion ra
-002
Pri motion dec
-015
Sec motion dec
-016
Notes
rPM=0.404
Nature of this double is uncertain.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
129.6
Precise sep
9.72
Constellation
Hercules
Tycho2
2112-00540-1
HD
336732
last precise pa
129.6
last precise sep
9.72
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
18420+2528 SLE 503 2000 2 130 9.9 11.37 12.40 D 184158.21+252733.0
18420+2528 SLE 503 2002 3 129 9.9 11.37 12.40 D 184158.21+252733.0
18420+2528 SLE 503 2010 4 129 9.5 11.37 12.40 184158.21+252733.0

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