18012-4550 I  1112AB

 
 
18h 01m 12.50s -45 49' 33.9" P.A. 232 sep 21.1 mag 7.78,12.73 Sp G6/8III
 
 
Coord 2000
18012-4550
Discov num
I  1112
Comp
AB
Coord arcsec 2000
18 01 12.50 -45 49 33.9
Date first
1905
Date last
1999
Obs
6
Pa first
233
Pa last
232
P.A. Now (θ)
232°
Sep first
19.5
Sep last
21.1
Sep. Now (ρ)
21.1"
Mag pri
7.78
Mag sec
12.73
delta mag (ΔM)
4.95
Spectral class
G6/8III (yellow)
Pri motion ra
-006
Sec motion ra
-022
Pri motion dec
-020
Sec motion dec
-032
Notes
rPM=0.515
Nature of this double is uncertain.
 
 
18012-4550 SYSTEM COMPONENTS
 
 
Show name SAO coord_2000 discov# comp first last obs pa sep mag1 mag2 d_mag orb current
Show 228625 18012-4550 I 1112 AB 1905 1999 6 232 21.1 7.78 12.73 4.95 <===
Show 228625 18012-4550 I 1112 AC 1913 1999 5 56 20.3 7.78 11.24 3.46
Show 228625 18012-4550 HJ 5005 AD 1836 1999 10 26 26.7 7.78 9.93 2.15
Show 228625 18012-4550 HJ 5005 AE 1914 2000 5 75 31.8 7.78 13.50 5.72
Show 228626 18012-4550 I 1112 CD 1913 1999 5 338 13.8 11.24 9.93 1.31
Quintuple system
5 visible stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
231.7
Precise sep
21.07
Constellation
Ara
SAO
228625
Tycho2
8357-03850-1
HD
163986
last precise pa
231.7
last precise sep
21.07
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
18012-4550 I 1112 AB 1999 5 232 21.1 7.78 12.30 G6/8III D 180112.50-454933.9

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