18281+2359 SLE 180

 
 
18h 28m 06.90s +23 59' 22.2" P.A. 247 sep 6.4 mag 13.10,13.50
 
 
Coord 2000
18281+2359
Discov num
SLE 180
Comp
Coord arcsec 2000
18 28 06.90 +23 59 22.2
Date first
1982
Date last
2010
Obs
5
Pa first
250
Pa last
247
P.A. Now (θ)
247°
Sep first
7.2
Sep last
6.4
Sep. Now (ρ)
6.4"
Mag pri
13.10
Mag sec
13.50
delta mag (ΔM)
0.4
Spectral class
Pri motion ra
+014
Sec motion ra
+007
Pri motion dec
-009
Sec motion dec
-020
Notes
rPM=0.615
Nature of this double is uncertain.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
246.6
Precise sep
6.39
Constellation
Hercules
Tycho2
2106-01145-1
last precise pa
246.6
last precise sep
6.39
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
18281+2359 SLE 180 1982 1 250 7.2 11.89 12.40 182805.14+235935.1
18281+2359 SLE 180 2000 2 248 6.6 13.10 13.50 182806.90+235922.2
18281+2359 SLE 180 2002 4 247 6.6 13.10 13.50 182806.90+235922.2
18281+2359 SLE 180 2010 5 248 5.4 13.10 13.50 182806.90+235922.2

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