18509-2235 DON 927AB

 
 
18h 50m 56.78s -22 34' 56.5" P.A. 68 sep 3.3 mag 9.63,15.70 Sp F5V
 
 
Coord 2000
18509-2235
Discov num
DON 927
Comp
AB
Coord arcsec 2000
18 50 56.78 -22 34 56.5
Date first
1929
Date last
2015
Obs
3
Pa first
69
Pa last
68
P.A. Now (θ)
68°
Sep first
3.1
Sep last
3.3
Sep. Now (ρ)
3.3"
Mag pri
9.63
Mag sec
15.70
delta mag (ΔM)
6.07
Spectral class
F5V (yellow-white)
Pri motion ra
-003
Sec motion ra
Pri motion dec
+000
Sec motion dec
Notes
Nature of this double is uncertain.
 
 
18509-2235 SYSTEM COMPONENTS
 
 
Show name SAO coord_2000 discov# comp first last obs pa sep mag1 mag2 d_mag orb current
Show 187347 18509-2235 DON 927 AB 1929 2015 3 68 3.3 9.63 15.70 6.07 <===
Show 187347 18509-2235 DON 927 AC 1929 2015 4 8 9.1 9.63 13.50 3.87
Triple system
3 visible stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
67.6
Precise sep
3.309
Constellation
Sagittarius
SAO
187347
Tycho2
6860-00286-1
Gaia DR2
4078678691534438784
HD
174331
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
18509-2235 DON 927 AB 1943 2 70 3.0 9.63 15.70 F5V 185056.78-223456.5
18509-2235 DON 927 AB 2015 3 68 3.3 9.63 15.70 F5V 185056.78-223456.5

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