18540-1347 A  1890AC

 
 
18h 53m 59.36s -13 47' 20.0" P.A. 246 sep 21.3 mag 9.09,12.60 Sp F0V
 
 
Coord 2000
18540-1347
Discov num
A  1890
Comp
AC
Coord arcsec 2000
18 53 59.36 -13 47 20.0
Date first
1907
Date last
2000
Obs
5
Pa first
245
Pa last
246
P.A. Now (θ)
246°
Sep first
19.4
Sep last
21.3
Sep. Now (ρ)
21.3"
Mag pri
9.09
Mag sec
12.60
delta mag (ΔM)
3.51
Spectral class
F0V (yellow-white)
Pri motion ra
+016
Sec motion ra
-001
Pri motion dec
-003
Sec motion dec
-002
Notes
rPM=1.046
This double is not physical.
 
 
18540-1347 SYSTEM COMPONENTS
 
 
Show name SAO coord_2000 discov# comp first last obs pa sep mag1 mag2 d_mag orb current
Show 161949 18540-1347 A 1890 AB 1908 1998 5 174 2.8 9.09 12.40 3.31
Show 161949 18540-1347 A 1890 AC 1907 2000 5 246 21.3 9.09 12.60 3.51 <===
Triple system
3 visible stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
246
Precise sep
21.275
Constellation
Scutum
SAO
161949
Tycho2
5718-00380-1
HD
175022
last precise pa
246
last precise sep
21.275
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
18540-1347 A 1890 AC 1917 3 244 20.0 9.09 12.60 F0V 185359.36-134720.0
18540-1347 A 1890 AC 1998 4 246 21.1 9.09 12.60 F0V 185359.36-134720.0
18540-1347 A 1890 AC 2000 5 246 21.3 9.09 12.60 F0V 185359.36-134720.0

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