18549-1733 HJ 2843AB,C

 
 
18h 54m 52.14s -17 33' 10.3" P.A. 339 sep 22 mag 9.57,13.00 Sp K2
 
 
Coord 2000
18549-1733
Discov num
HJ 2843
Comp
AB,C
Coord arcsec 2000
18 54 52.14 -17 33 10.3
Date first
1831
Date last
1999
Obs
3
Pa first
350
Pa last
339
P.A. Now (θ)
339°
Sep first
12.0
Sep last
22.0
Sep. Now (ρ)
22"
Mag pri
9.57
Mag sec
13.00
delta mag (ΔM)
3.43
Spectral class
K2 (yellow-orange)
Pri motion ra
-005
Sec motion ra
+002
Pri motion dec
+000
Sec motion dec
+005
Notes
rPM=1.597
This double is not physical.
 
 
18549-1733 SYSTEM COMPONENTS
 
 
Show name SAO coord_2000 discov# comp first last obs pa sep mag1 mag2 d_mag orb current
Show 161970 18549-1733 RST3205 AB 1935 1991 5 300 0.5 10.23 10.17 0.06
Show 161970 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
339.1
Precise sep
22.049
Constellation
Sagittarius
SAO
161970
Tycho2
6285-02607-1
last precise pa
339.1
last precise sep
22.049
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
18549-1733 HJ 2843 AB,C 1998 2 339 22.2 9.57 13.00 K2 185452.14-173310.3
18549-1733 HJ 2843 AB,C 1999 3 339 22.0 9.57 13.00 K2 185452.14-173310.3

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