16539-1854 DON 815AB

 
 
16h 53m 56.89s -18 54' 20.7" P.A. 219 sep 2.2 mag 8.83,14.00 Sp A2IV/V
 
 
Coord 2000
16539-1854
Discov num
DON 815
Comp
AB
Coord arcsec 2000
16 53 56.89 -18 54 20.7
Date first
1932
Date last
1940
Obs
3
Pa first
222
Pa last
219
P.A. Now (θ)
219°
Sep first
2.2
Sep last
2.2
Sep. Now (ρ)
2.2"
Mag pri
8.83
Mag sec
14.00
delta mag (ΔM)
5.17
Spectral class
A2IV/V (white)
Pri motion ra
-020
Sec motion ra
Pri motion dec
+001
Sec motion dec
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
 
 
Precise pa
219.2
Precise sep
2.22
Constellation
Ophiuchus
SAO
160150
Tycho2
6226-01514-1
HD
152419
last precise pa
219.2
last precise sep
2.22
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
16539-1854 DON 815 AB 1940 3 219 2.2 8.83 14.00 A2IV/V 165356.89-185420.7

If you need more information about this double, apply for a data request form to the WDS.