18405+3017 HJ 1336AD

 
 
18H 40M 28.90S +30 17' 21.5" P.A. 294 SEP 33.3 MAG 8.69,12.70 SP A0
 
 
Coord 2000
18405+3017
Discov num
HJ 1336
Comp
AD
Coord arcsec 2000
18 40 28.90 +30 17 21.5
Date first
1828
Date last
2012
Obs
7
Pa first
300
Pa last
294
P.A. Now (θ)
294°
Sep first
15.0
Sep last
33.3
Sep. Now (ρ)
33.3"
Mag pri
8.69
Mag sec
12.70
delta mag (ΔM)
4.01
Spectral class
A0 (white)
Pri motion ra
+002
Sec motion ra
+003
Pri motion dec
-004
Sec motion dec
-007
Notes
Nature of this double is uncertain.
 
 
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
 
 
Constellation
Lyra
SAO
67236
Tycho2
2637-00449-1
HD
172716
last precise pa
294.1
last precise sep
33.282