18546+3656 ELS   7AC

 
 
18h 54m 37.55s +36 55' 48.5" P.A. 121 sep 10.3 mag 13.60,16.00
 
 
Coord 2000
18546+3656
Discov num
ELS   7
Comp
AC
Coord arcsec 2000
18 54 37.55 +36 55 48.5
Date first
1924
Date last
2015
Obs
6
Pa first
118
Pa last
121
P.A. Now (θ)
121°
Sep first
11.8
Sep last
10.3
Sep. Now (ρ)
10.3"
Mag pri
13.60
Mag sec
16.00
delta mag (ΔM)
2.4
Spectral class
Pri motion ra
+031
Sec motion ra
Pri motion dec
-112
Sec motion dec
Notes
Nature of this double is uncertain.
 
 
18546+3656 SYSTEM COMPONENTS
 
 
Show name SAO coord_2000 discov# comp first last obs pa sep mag1 mag2 d_mag orb current
Show 12 Lyr 67559 18546+3656 ELS 7 AB 1924 2015 7 338 8.5 13.60 13.80 0.20
Show 67559 18546+3656 ELS 7 AC 1924 2015 6 121 10.3 13.60 16.00 2.40 <===
Triple system
3 visible stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
120.5
Precise sep
10.281
Constellation
Lyra
SAO
67559
Gaia DR2
2093932110269470208
HD
175588
HR
7139
DM
BD+36 3319
Flamsteed
12 Lyrae
Flamsteed name
12 Lyr
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
18546+3656 ELS 7 AC 2007 3 120 10.1 11.00 13.50 185410.00+365600.0
18546+3656 ELS 7 AC 2012 5 121 10.1 13.60 16.00 185437.55+365548.5
18546+3656 ELS 7 AC 2015 6 121 10.3 13.60 16.00 185437.55+365548.5

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