18028-4601 B  1874AC

 
 
18h 02m 46.33s -46 01' 20.1" P.A. 101 sep 9.8 mag 9.59,13.19 Sp F3IV/V dist. 306.75 pc (1000.62 l.y.)
 
 
Coord 2000
18028-4601
Discov num
B  1874
Comp
AC
Coord arcsec 2000
18 02 46.33 -46 01 20.1
Date first
1905
Date last
1999
Obs
6
Pa first
105
Pa last
101
P.A. Now (θ)
101°
Sep first
9.8
Sep last
9.8
Sep. Now (ρ)
9.8"
Mag pri
9.59
Mag sec
13.19
delta mag (ΔM)
3.6
Spectral class
F3IV/V (yellow-white)
Pri motion ra
+006
Sec motion ra
+043
Pri motion dec
-023
Sec motion dec
-039
Notes
rPM=0.694
Nature of this double is uncertain.
 
 
18028-4601 SYSTEM COMPONENTS
 
 
Show name SAO coord_2000 discov# comp first last obs pa sep mag1 mag2 d_mag orb current
Show 228649 18028-4601 B 1874 AB 1932 1991 3 307 2.8 9.59 12.06 2.47
Show 228649 18028-4601 B 1874 AC 1905 1999 6 101 9.8 9.59 13.19 3.60 <===
Triple system
3 visible stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
100.9
Precise sep
9.83
Constellation
Ara
SAO
228649
HIP
88375
Tycho2
8357-02243-1
HD
164324
CD
CD-4612055
CP
CP-46 9058
Distance
306.75
Distance ly
1000.62
last precise pa
100.9
last precise sep
9.83
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
18028-4601 B 1874 AC 1999 5 101 9.8 9.59 13.19 D 180246.33-460120.1

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