18540-1347 A  1890AB

 
 
18h 53m 59.36s -13 47' 20.0" P.A. 174 sep 2.8 mag 9.09,12.40 Sp F0V
 
 
Coord 2000
18540-1347
Discov num
A  1890
Comp
AB
Coord arcsec 2000
18 53 59.36 -13 47 20.0
Date first
1908
Date last
1998
Obs
5
Pa first
177
Pa last
174
P.A. Now (θ)
174°
Sep first
3.3
Sep last
2.8
Sep. Now (ρ)
2.8"
Mag pri
9.09
Mag sec
12.40
delta mag (ΔM)
3.31
Spectral class
F0V (yellow-white)
Pri motion ra
+009
Sec motion ra
Pri motion dec
+003
Sec motion dec
Notes
Nature of this double is uncertain.
 
 
18540-1347 SYSTEM COMPONENTS
 
 
Show name SAO coord_2000 discov# comp first last obs pa sep mag1 mag2 d_mag orb current
Show 18540-1347 A 1890 AB 1908 1998 5 174 2.8 9.09 12.40 3.31 <===
Show 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
174.1
Precise sep
2.84
Constellation
Scutum
last precise pa
174.1
last precise sep
2.84
 
 
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 AB 1998 5 174 2.8 9.09 12.40 F0V D 185359.36-134720.0

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