18554-0552 J  2241BC

 
 
18h 55m 26.93s -05 51' 52.2" P.A. 258 sep 5.3 mag 11.82,13.80
 
 
Coord 2000
18554-0552
Discov num
J  2241
Comp
BC
Coord arcsec 2000
18 55 26.93 -05 51 52.2
Date first
1942
Date last
2015
Obs
8
Pa first
270
Pa last
258
P.A. Now (θ)
258°
Sep first
3.0
Sep last
5.3
Sep. Now (ρ)
5.3"
Mag pri
11.82
Mag sec
13.80
delta mag (ΔM)
1.98
Spectral class
Pri motion ra
-003
Sec motion ra
-049
Pri motion dec
+003
Sec motion dec
+015
Notes
rPM=0.928
This double is not physical.
 
 
18554-0552 SYSTEM COMPONENTS
 
 
Show name SAO coord_2000 discov# comp first last obs pa sep mag1 mag2 d_mag orb current
Show 18554-0552 J 2241 AB 1896 2015 9 215 29.5 10.52 11.82 1.30
Show 18554-0552 J 2241 BC 1942 2015 8 258 5.3 11.82 13.80 1.98 <===
Triple system
3 visible stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
258.1
Precise sep
5.3
Constellation
Scutum
last precise pa
258.1
last precise sep
5.3
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
18554-0552 J 2241 BC 2007 3 259 6.5 9.80 11.80 185515.00-055200.0
18554-0552 J 2241 BC 2009 5 259 5.4 9.80 11.80 D 185526.93-055152.2
18554-0552 J 2241 BC 2015 8 258 5.3 11.82 13.80 185526.93-055152.2

If you need more information about this double, apply for a data request form to the WDS.