20170-1228 DOO  84AC

 
 
20h 17m 06.35s -12 27' 13.7" P.A. 11 sep 25.8 mag 11.00,11.50
 
 
Coord 2000
20170-1228
Discov num
DOO  84
Comp
AC
Coord arcsec 2000
20 17 06.35 -12 27 13.7
Date first
1910
Date last
2017
Obs
10
Pa first
11
Pa last
11
P.A. Now (θ)
11°
Sep first
25.5
Sep last
25.8
Sep. Now (ρ)
25.8"
Mag pri
11.00
Mag sec
11.50
delta mag (ΔM)
0.5
Spectral class
Pri motion ra
-027
Sec motion ra
-009
Pri motion dec
+011
Sec motion dec
+010
Notes
rPM=0.618
Nature of this double is uncertain.
 
 
20170-1228 SYSTEM COMPONENTS
 
 
Show name SAO coord_2000 discov# comp first last obs pa sep mag1 mag2 d_mag orb current
Show 20170-1228 HJ 2943 AB 1831 2017 14 114 9.9 11.00 12.00 1.00
Show 20170-1228 DOO 84 AC 1910 2017 10 11 25.8 11.00 11.50 0.50 <===
Triple system
3 visible stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
11.1
Precise sep
25.781
Constellation
Capricornus
Tycho2
5748-00639-1
Gaia DR2
55303931520
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
20170-1228 DOO 84 AC 1998 2 11 25.9 11.00 11.50 D 201706.35-122713.7
20170-1228 DOO 84 AC 2000 3 11 25.8 11.00 11.50 D 201706.35-122713.7
20170-1228 DOO 84 AC 2016 5 11 25.9 11.00 11.50 201706.35-122713.7
20170-1228 DOO 84 AC 2017 6 11 25.8 11.00 11.50 201706.35-122713.7

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