18564+4530 HJ 1356AB

 
 
18h 56m 22.13s +45 30' 25.4" P.A. 342 sep 29.3 mag 8.39,9.35 Sp F8
 
 
Coord 2000
18564+4530
Discov num
HJ 1356
Comp
AB
Coord arcsec 2000
18 56 22.13 +45 30 25.4
Date first
1828
Date last
2015
Obs
21
Pa first
345
Pa last
342
P.A. Now (θ)
342°
Sep first
30.0
Sep last
29.3
Sep. Now (ρ)
29.3"
Mag pri
8.39
Mag sec
9.35
delta mag (ΔM)
0.96
Spectral class
F8 (yellow-white)
Pri motion ra
+025
Sec motion ra
+023
Pri motion dec
+058
Sec motion dec
+058
Notes
N V (See Notes, Proper motion indicates physical)
rPM=0.032 (< 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
29.307
Constellation
Lyra
last precise pa
341.9
last precise sep
29.307
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
18564+4530 HJ 1356 AB 2015 21 342 29.3 8.39 9.35 F8 NV 185622.13+453025.4

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