18005-3742 I   230AB

 
 
18h 00m 31.17s -37 41' 57.9" P.A. 138 sep 6.2 mag 8.72,10.50 Sp G8IV
 
 
Coord 2000
18005-3742
Discov num
I   230
Comp
AB
Coord arcsec 2000
18 00 31.17 -37 41 57.9
Date first
1897
Date last
2015
Obs
15
Pa first
140
Pa last
138
P.A. Now (θ)
138°
Sep first
5.0
Sep last
6.2
Sep. Now (ρ)
6.2"
Mag pri
8.72
Mag sec
10.50
delta mag (ΔM)
1.78
Spectral class
G8IV (yellow)
Pri motion ra
+000
Sec motion ra
+000
Pri motion dec
+006
Sec motion dec
+000
Notes
N (See Notes)
rPM=1
This double is not physical.
 
 
18005-3742 SYSTEM COMPONENTS
 
 
Show name SAO coord_2000 discov# comp first last obs pa sep mag1 mag2 d_mag orb current
Show 18005-3742 I 230 AB 1897 2015 15 138 6.2 8.72 10.50 1.78 <===
Show 18005-3742 I 230 AC 1951 2015 9 153 62.5 8.72 10.31 1.59
Triple system
3 visible stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
138.2
Precise sep
6.192
Constellation
Corona Austrina
Tycho2
7899-00558-1
Gaia DR2
37692680960
HD
163958
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
18005-3742 I 230 AB 2000 14 138 6.4 8.72 10.50 G8IV N D 180031.17-374157.9
18005-3742 I 230 AB 2015 15 138 6.2 8.72 10.50 G8IV N 180031.17-374157.9

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