20003+1757 HU  352AB

 
 
20h 00m 21.02s +17 56' 34.3" P.A. 176 sep 0.2 mag 9.00,9.50 Sp A0
 
 
Coord 2000
20003+1757
Discov num
HU  352
Comp
AB
Coord arcsec 2000
20 00 21.02 +17 56 34.3
Date first
1901
Date last
2007
Obs
17
Pa first
262
Pa last
176
P.A. Now (θ)
176°
Sep first
0.2
Sep last
0.2
Sep. Now (ρ)
0.2"
Mag pri
9.00
Mag sec
9.50
delta mag (ΔM)
0.5
Spectral class
A0 (white)
Pri motion ra
-001
Sec motion ra
Pri motion dec
-001
Sec motion dec
Notes
Nature of this double is uncertain.
 
 
20003+1757 SYSTEM COMPONENTS
 
 
Show name SAO coord_2000 discov# comp first last obs pa sep mag1 mag2 d_mag orb current
Show 105531 20003+1757 HU 352 AB 1901 2007 17 176 0.2 9.00 9.50 0.50 <===
Show 105531 20003+1757 LBU 8 AB,C 1896 2001 8 28 63.6 8.76 11.38 2.62
Show 105531 20003+1757 LBU 8 AB,D 1991 2001 4 353 65.6 8.76 11.30 2.54
Quadruple system
5 visible stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
176.4
Precise sep
0.172
Constellation
Sagitta
SAO
105531
Tycho2
1621-01665-1
HD
189615
last precise pa
176.4
last precise sep
0.172
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
20003+1757 HU 352 AB 1992 16 225 0.2 9.00 9.50 A0 200021.02+175634.3
20003+1757 HU 352 AB 2007 17 176 0.2 9.00 9.50 A0 200021.02+175634.3

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