20023-1157 HU   79AB

 
 
20h 02m 18.63s -11 57' 24.7" P.A. 235 sep 0.5 mag 10.31,10.26 Sp A8V
 
 
Coord 2000
20023-1157
Discov num
HU   79
Comp
AB
Coord arcsec 2000
20 02 18.63 -11 57 24.7
Date first
1899
Date last
1991
Obs
11
Pa first
244
Pa last
235
P.A. Now (θ)
235°
Sep first
0.6
Sep last
0.5
Sep. Now (ρ)
0.5"
Mag pri
10.31
Mag sec
10.26
delta mag (ΔM)
0.05
Spectral class
A8V (white)
Pri motion ra
-001
Sec motion ra
-001
Pri motion dec
-011
Sec motion dec
-011
Notes
Nature of this double is uncertain.
 
 
20023-1157 SYSTEM COMPONENTS
 
 
Show name SAO coord_2000 discov# comp first last obs pa sep mag1 mag2 d_mag orb current
Show 20023-1157 HU 79 AB 1899 1991 11 235 0.5 10.31 10.26 0.05 <===
Show 20023-1157 B 2882 AB,C 1930 2005 4 289 3.8 9.53 13.90 4.37
Triple system
4 visible stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
234.9
Precise sep
0.54
Constellation
Sagittarius
SAO
163197
Tycho2
5746-00883-1
Gaia DR2
28946083840
HD
189815
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
20023-1157 HU 79 AB 1991 11 235 0.5 10.31 10.26 A8V 200218.63-115724.7

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