18549-1733 RST3205AB

 
 
18h 54m 52.14s -17 33' 10.3" P.A. 300 sep 0.5 mag 10.23,10.17 Sp K2
 
 
Coord 2000
18549-1733
Discov num
RST3205
Comp
AB
Coord arcsec 2000
18 54 52.14 -17 33 10.3
Date first
1935
Date last
1991
Obs
5
Pa first
306
Pa last
300
P.A. Now (θ)
300°
Sep first
0.4
Sep last
0.5
Sep. Now (ρ)
0.5"
Mag pri
10.23
Mag sec
10.17
delta mag (ΔM)
0.06
Spectral class
K2 (yellow-orange)
Pri motion ra
+000
Sec motion ra
+000
Pri motion dec
-001
Sec motion dec
-001
Notes
Nature of this double is uncertain.
 
 
18549-1733 SYSTEM COMPONENTS
 
 
Show name SAO coord_2000 discov# comp first last obs pa sep mag1 mag2 d_mag orb current
Show 18549-1733 RST3205 AB 1935 1991 5 300 0.5 10.23 10.17 0.06 <===
Show 18549-1733 HJ 2843 AB,C 1831 1999 3 339 22.0 9.57 13.00 3.43
Triple system
4 visible stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
299.9
Precise sep
0.53
Constellation
Sagittarius
Tycho2
6285-02607-1
last precise pa
299.9
last precise sep
0.53
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
18549-1733 RST3205 AB 1991 5 300 0.5 10.23 10.17 K2 185452.14-173310.3

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