18210-2842 B  2864A,BC

 
 
18h 20m 58.71s -28 42' 25.6" P.A. 166 sep 38.6 mag 8.54,11.44 Sp K1III dist. 284.09 pc (926.7 l.y.)
 
 
Coord 2000
18210-2842
Discov num
B  2864
Comp
A,BC
Coord arcsec 2000
18 20 58.71 -28 42 25.6
Date first
1913
Date last
1999
Obs
5
Pa first
165
Pa last
166
P.A. Now (θ)
166°
Sep first
38.7
Sep last
38.6
Sep. Now (ρ)
38.6"
Mag pri
8.54
Mag sec
11.44
delta mag (ΔM)
2.9
Spectral class
K1III (yellow-orange)
Pri motion ra
-001
Sec motion ra
-004
Pri motion dec
-002
Sec motion dec
-006
Notes
rPM=0.693
Nature of this double is uncertain.
 
 
18210-2842 SYSTEM COMPONENTS
 
 
Show name SAO coord_2000 discov# comp first last obs pa sep mag1 mag2 d_mag orb current
Show 186683 18210-2842 B 2864 A,BC 1913 1999 5 166 38.6 8.54 11.44 2.90 <===
Show 18210-2842 B 2864 BC 1913 1913 1 313 1.7 11.44
Triple system
4 visible stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
165.5
Precise sep
38.645
Constellation
Sagittarius
SAO
186683
HIP
89929
Tycho2
6856-00481-1
HD
168467
CD
CD-2814476
CP
CP-28 6520
Distance
284.09
Distance ly
926.7
last precise pa
165.5
last precise sep
38.645
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
18210-2842 B 2864 A,BC 1998 4 165 38.3 8.54 11.44 K1III D 182058.71-284225.6
18210-2842 B 2864 A,BC 1999 5 166 38.3 8.54 11.44 K1III D 182058.71-284225.6

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