18564+4530 JKA  16BD

 
 
18h 56m 21.26s +45 30' 53.1" P.A. 342 sep 549.9 mag 9.30,11.80
 
 
Coord 2000
18564+4530
Discov num
JKA  16
Comp
BD
Coord arcsec 2000
18 56 21.26 +45 30 53.1
Date first
1894
Date last
2003
Obs
5
Pa first
343
Pa last
342
P.A. Now (θ)
342°
Sep first
549.6
Sep last
549.9
Sep. Now (ρ)
549.9"
Mag pri
9.30
Mag sec
11.80
delta mag (ΔM)
2.5
Spectral class
Pri motion ra
+023
Sec motion ra
+029
Pri motion dec
+060
Sec motion dec
+065
Notes
V (Proper motion indicates physical)
rPM=0.11 (< 0.3, Physical double)
This double is physical.
 
 
18564+4530 SYSTEM COMPONENTS
 
 
Show name SAO coord_2000 discov# comp first last obs pa sep mag1 mag2 d_mag orb current
Show 18564+4530 HJ 1356 AB 1828 2015 21 342 29.3 8.39 9.35 0.96
Show 18564+4530 RAO 92 AC 2014 2014 1 292 3.6 8.20 15.00 6.80
Show 18564+4530 JKA 16 BD 1894 2003 5 342 549.9 9.30 11.80 2.50 <===
Quadruple system
4 visible stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
341.9
Precise sep
549.917
Cdsa2 id
JKA 16 BD
Constellation
Lyra
Ra deg
18.939238888888887
De deg
45.51475
last precise pa
341.9
last precise sep
549.917
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
18564+4530 JKA 16 BD 2003 5 342 549.9 9.30 11.80 V 185621.26+453053.1

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