18309+1641 SLE 620AB

 
 
18h 30m 56.35s +16 40' 42.7" P.A. 341 sep 19.6 mag 10.86,12.30
 
 
Coord 2000
18309+1641
Discov num
SLE 620
Comp
AB
Coord arcsec 2000
18 30 56.35 +16 40 42.7
Date first
1982
Date last
2002
Obs
5
Pa first
342
Pa last
341
P.A. Now (θ)
341°
Sep first
20.1
Sep last
19.6
Sep. Now (ρ)
19.6"
Mag pri
10.86
Mag sec
12.30
delta mag (ΔM)
1.44
Spectral class
Pri motion ra
+007
Sec motion ra
Pri motion dec
+006
Sec motion dec
Notes
Nature of this double is uncertain.
 
 
18309+1641 SYSTEM COMPONENTS
 
 
Show name SAO coord_2000 discov# comp first last obs pa sep mag1 mag2 d_mag orb current
Show 18309+1641 SLE 620 AB 1982 2002 5 341 19.6 10.86 12.30 1.44 <===
Show 18309+1641 SLE 620 AC 1982 2002 5 9 23.5 10.86 12.60 1.74
Triple system
3 visible stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
341.4
Precise sep
19.6
Constellation
Hercules
Tycho2
1569-00831-1
last precise pa
341.4
last precise sep
19.6
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
18309+1641 SLE 620 AB 2002 3 341 19.6 10.86 12.30 D 183056.35+164042.7

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