18466+3853 ES 2021AB

 
 
18h 46m 37.25s +38 52' 24.3" P.A. 255 sep 20.4 mag 11.26,12.20
 
 
Coord 2000
18466+3853
Discov num
ES 2021
Comp
AB
Coord arcsec 2000
18 46 37.25 +38 52 24.3
Date first
1923
Date last
2013
Obs
6
Pa first
252
Pa last
255
P.A. Now (θ)
255°
Sep first
21.3
Sep last
20.4
Sep. Now (ρ)
20.4"
Mag pri
11.26
Mag sec
12.20
delta mag (ΔM)
0.94
Spectral class
Pri motion ra
-004
Sec motion ra
+013
Pri motion dec
-010
Sec motion dec
-009
Notes
rPM=1.077
This double is not physical.
 
 
18466+3853 SYSTEM COMPONENTS
 
 
Show name SAO coord_2000 discov# comp first last obs pa sep mag1 mag2 d_mag orb current
Show 18466+3853 ES 2021 AB 1923 2013 6 255 20.4 11.26 12.20 0.94 <===
Show 18466+3853 ES 2021 AC 1985 2011 2 260 23.0 11.26 13.40 2.14
Show 18466+3853 ES 2021 BC 1923 2007 4 298 3.7 12.20 13.40 1.20
Triple system
3 visible stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
255.2
Precise sep
20.43
Constellation
Lyra
Tycho2
3118-01777-1
last precise pa
255.2
last precise sep
20.43
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
18466+3853 ES 2021 AB 2007 4 254 20.5 11.26 12.20 D 184637.25+385224.1
18466+3853 ES 2021 AB 2013 6 255 20.4 11.26 12.20 184637.25+385224.1

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