17004-6933 DON 817Aa,Ab

 
 
17h 00m 21.50s -69 33' 45.4" P.A. 327 sep 0.6 mag 10.56,10.85
 
 
Coord 2000
17004-6933
Discov num
DON 817
Comp
Aa,Ab
Coord arcsec 2000
17 00 21.50 -69 33 45.4
Date first
1929
Date last
1991
Obs
2
Pa first
337
Pa last
327
P.A. Now (θ)
327°
Sep first
0.8
Sep last
0.6
Sep. Now (ρ)
0.6"
Mag pri
10.56
Mag sec
10.85
delta mag (ΔM)
0.29
Spectral class
Pri motion ra
-044
Sec motion ra
Pri motion dec
-040
Sec motion dec
Notes
Nature of this double is uncertain.
 
 
17004-6933 SYSTEM COMPONENTS
 
 
Show name SAO coord_2000 discov# comp first last obs pa sep mag1 mag2 d_mag orb current
Show 17004-6933 DON 817 Aa,Ab 1929 1991 2 327 0.6 10.56 10.85 0.29 <===
Show 17004-6933 UC 3271 AB 1998 2000 2 194 12.9 10.00 15.10 5.10
Triple system
2 visible stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
327
Precise sep
0.6
Constellation
Triangulum Australe
Tycho2
9279-00909-1
last precise pa
327
last precise sep
0.6
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
17004-6933 DON 817 Aa,Ab 1991 2 327 0.6 10.56 10.85 170021.50-693345.4

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