12391-5816 R   205AB

 
 
12h 39m 00.92s -58 15' 53.9" P.A. 91 sep 26 mag 10.79,10.86
 
 
Coord 2000
12391-5816
Discov num
R   205
Comp
AB
Coord arcsec 2000
12 39 00.92 -58 15 53.9
Date first
1881
Date last
2015
Obs
10
Pa first
92
Pa last
91
P.A. Now (θ)
91°
Sep first
23.4
Sep last
26.0
Sep. Now (ρ)
26"
Mag pri
10.79
Mag sec
10.86
delta mag (ΔM)
0.07
Spectral class
Pri motion ra
-024
Sec motion ra
-006
Pri motion dec
-002
Sec motion dec
-003
Notes
N (See Notes)
rPM=0.749
Nature of this double is uncertain.
 
 
12391-5816 SYSTEM COMPONENTS
 
 
Show name SAO coord_2000 discov# comp first last obs pa sep mag1 mag2 d_mag orb current
Show 12391-5816 TDS8471 Aa,Ab 1991 1991 1 26 0.5 11.32 11.73 0.41
Show 12391-5816 R 205 AB 1881 2015 10 91 26.0 10.79 10.86 0.07 <===
Show 12391-5816 TOB 108 AC 1991 2015 6 16 21.9 10.79 11.78 0.99
Show 12391-5816 TOB 108 CD 1991 2015 6 155 10.1 11.78 13.60 1.82
Quintuple system
4 visible stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
90.9
Precise sep
26
Cdsa2 id
R 205 AB
Constellation
Crux
Tycho2
8658-00437-1
Ra deg
12.650255555555557
De deg
-58.26497222222222
last precise pa
90.9
last precise sep
26
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
12391-5816 R 205 AB 1991 5 90 25.9 11.32 10.86 N 123900.92-581553.9
12391-5816 R 205 AB 2000 7 91 25.9 11.32 10.86 N D 123900.92-581553.9
12391-5816 R 205 AB 2015 10 91 26.0 10.79 10.86 N 123900.92-581553.9

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