18405+3017 HJ 1336AB

 
 
18h 40m 28.90s +30 17' 21.5" P.A. 89 sep 16.9 mag 8.69,12.00 Sp A0
 
 
Coord 2000
18405+3017
Discov num
HJ 1336
Comp
AB
Coord arcsec 2000
18 40 28.90 +30 17 21.5
Date first
1901
Date last
2013
Obs
4
Pa first
87
Pa last
89
P.A. Now (θ)
89°
Sep first
17.6
Sep last
16.9
Sep. Now (ρ)
16.9"
Mag pri
8.69
Mag sec
12.00
delta mag (ΔM)
3.31
Spectral class
A0 (white)
Pri motion ra
+002
Sec motion ra
-008
Pri motion dec
-004
Sec motion dec
-009
Notes
rPM=0.928
This double is not physical.
 
 
18405+3017 SYSTEM COMPONENTS
 
 
Show name SAO coord_2000 discov# comp first last obs pa sep mag1 mag2 d_mag orb current
Show 67236 18405+3017 HJ 1336 AB 1901 2013 4 89 16.9 8.69 12.00 3.31 <===
Show 67236 18405+3017 HJ 1336 AC 1901 2012 4 174 32.6 8.69 11.50 2.81
Show 67236 18405+3017 HJ 1336 AD 1828 2012 7 294 33.3 8.69 12.70 4.01
Show 67236 18405+3017 HJ 1336 AE 1906 2012 4 337 32.1 8.69 14.20 5.51
Quintuple system
5 visible stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
89.1
Precise sep
16.86
Constellation
Lyra
SAO
67236
Tycho2
2637-00449-1
HD
172716
last precise pa
89.1
last precise sep
16.86
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
18405+3017 HJ 1336 AB 1998 2 89 17.1 8.69 12.00 A0 D 184028.90+301721.5
18405+3017 HJ 1336 AB 2002 4 89 16.9 8.69 12.00 A0 D 184028.90+301721.5
18405+3017 HJ 1336 AB 2013 4 89 16.9 8.69 12.00 A0 184028.90+301721.5

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