18220-3132 RST2047AB

 
 
18h 21m 58.94s -31 32' 40.2" P.A. 132 sep 3.7 mag 10.30,13.30 Sp A7V
 
 
Coord 2000
18220-3132
Discov num
RST2047
Comp
AB
Coord arcsec 2000
18 21 58.94 -31 32 40.2
Date first
1934
Date last
2000
Obs
3
Pa first
122
Pa last
132
P.A. Now (θ)
132°
Sep first
3.2
Sep last
3.7
Sep. Now (ρ)
3.7"
Mag pri
10.30
Mag sec
13.30
delta mag (ΔM)
3
Spectral class
A7V (white)
Pri motion ra
-001
Sec motion ra
Pri motion dec
+002
Sec motion dec
Notes
Nature of this double is uncertain.
 
 
18220-3132 SYSTEM COMPONENTS
 
 
Show name SAO coord_2000 discov# comp first last obs pa sep mag1 mag2 d_mag orb current
Show 18220-3132 RST2047 AB 1934 2000 3 132 3.7 10.30 13.30 3.00 <===
Show 18220-3132 RST2047 BC 1934 2000 2 129 4.3 13.30 13.60 0.30
Triple system
3 visible stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
131.5
Precise sep
3.67
Constellation
Sagittarius
Tycho2
7393-01497-1
HD
319361
last precise pa
131.5
last precise sep
3.67
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
18220-3132 RST2047 AB 1944 2 122 3.3 10.12 13.90 182158.94-313240.2
18220-3132 RST2047 AB 2000 3 132 3.7 10.12 13.50 182158.94-313240.2

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