16539-1854 DON 815AC

 
 
16H 53M 56.89S -18 54' 20.7" P.A. 320 SEP 9.3 MAG 8.83,13.20 SP A2IV/V
 
 
Coord 2000
16539-1854
Discov num
DON 815
Comp
AC
Coord arcsec 2000
16 53 56.89 -18 54 20.7
Date first
1933
Date last
1999
Obs
3
Pa first
318
Pa last
320
P.A. Now (θ)
320°
Sep first
9.1
Sep last
9.3
Sep. Now (ρ)
9.3"
Mag pri
8.83
Mag sec
13.20
delta mag (ΔM)
4.37
Spectral class
A2IV/V (white)
Pri motion ra
-003
Sec motion ra
-009
Pri motion dec
-001
Sec motion dec
-003
Notes
Nature of this double is uncertain.
 
 
16539-1854 SYSTEM COMPONENTS
 
 
Show name SAO coord_2000 discov# comp first last obs pa sep mag1 mag2 d_mag orb current
Show 160150 16539-1854 DON 815 AB 1932 1940 3 219 2.2 8.83 14.00 5.17
Show 160150 16539-1854 DON 815 AC 1933 1999 3 320 9.3 8.83 13.20 4.37 <===
Triple system
3 visible stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Constellation
Ophiuchus
SAO
160150
Tycho2
6226-01514-1
HD
152419
last precise pa
319.9
last precise sep
9.325