18021+2620 SLE  90

 
 
18h 02m 06.63s +26 19' 33.6" P.A. 265 sep 13.2 mag 11.37,12.90
 
 
Coord 2000
18021+2620
Discov num
SLE  90
Comp
Coord arcsec 2000
18 02 06.63 +26 19 33.6
Date first
1982
Date last
2010
Obs
4
Pa first
264
Pa last
265
P.A. Now (θ)
265°
Sep first
13.4
Sep last
13.2
Sep. Now (ρ)
13.2"
Mag pri
11.37
Mag sec
12.90
delta mag (ΔM)
1.53
Spectral class
Pri motion ra
-001
Sec motion ra
-005
Pri motion dec
-016
Sec motion dec
-004
Notes
rPM=0.789
Nature of this double is uncertain.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
265.3
Precise sep
13.24
Constellation
Hercules
Tycho2
2099-02714-1
last precise pa
265.3
last precise sep
13.24
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
18021+2620 SLE 90 1999 2 265 13.2 11.37 12.90 D 180206.63+261933.6
18021+2620 SLE 90 2002 3 265 13.3 11.37 12.90 D 180206.63+261933.6
18021+2620 SLE 90 2010 4 266 13.1 11.37 12.90 180206.63+261933.6

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