18079+4002 ES 1649AB

 
 
18h 07m 51.56s +40 01' 27.6" P.A. 331 sep 7.8 mag 10.73,14.20
 
 
Coord 2000
18079+4002
Discov num
ES 1649
Comp
AB
Coord arcsec 2000
18 07 51.56 +40 01 27.6
Date first
1917
Date last
2015
Obs
4
Pa first
331
Pa last
331
P.A. Now (θ)
331°
Sep first
6.8
Sep last
7.8
Sep. Now (ρ)
7.8"
Mag pri
10.73
Mag sec
14.20
delta mag (ΔM)
3.47
Spectral class
Pri motion ra
+004
Sec motion ra
-017
Pri motion dec
-007
Sec motion dec
+027
Notes
rPM=1.253
This double is not physical.
 
 
18079+4002 SYSTEM COMPONENTS
 
 
Show name SAO coord_2000 discov# comp first last obs pa sep mag1 mag2 d_mag orb current
Show 18079+4002 ES 1649 AB 1917 2015 4 331 7.8 10.73 14.20 3.47 <===
Show 18079+4002 ES 1649 AC 1917 2015 4 226 24.4 10.73 13.70 2.97
Triple system
3 visible stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
330.9
Precise sep
7.8
Constellation
Hercules
Tycho2
3106-00848-1
last precise pa
330.9
last precise sep
7.8
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
18079+4002 ES 1649 AB 1998 2 331 7.7 10.73 14.20 D 180751.56+400127.6
18079+4002 ES 1649 AB 2002 3 331 7.7 10.73 14.20 D 180751.56+400127.6
18079+4002 ES 1649 AB 2015 4 331 7.8 10.73 14.20 180751.56+400127.6

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