19500+1702 HU  349AB

 
 
19h 49m 58.74s +17 01' 41.9" P.A. 237 sep 2.4 mag 9.00,13.40 Sp B9
 
 
Coord 2000
19500+1702
Discov num
HU  349
Comp
AB
Coord arcsec 2000
19 49 58.74 +17 01 41.9
Date first
1901
Date last
2000
Obs
9
Pa first
237
Pa last
237
P.A. Now (θ)
237°
Sep first
2.4
Sep last
2.4
Sep. Now (ρ)
2.4"
Mag pri
9.00
Mag sec
13.40
delta mag (ΔM)
4.4
Spectral class
B9 (blue-white)
Pri motion ra
+001
Sec motion ra
Pri motion dec
-002
Sec motion dec
Notes
Nature of this double is uncertain.
 
 
19500+1702 SYSTEM COMPONENTS
 
 
Show name SAO coord_2000 discov# comp first last obs pa sep mag1 mag2 d_mag orb current
Show 19500+1702 HU 349 AB 1901 2000 9 237 2.4 9.00 13.40 4.40 <===
Show 19500+1702 HU 349 AC 1915 2009 5 28 57.7 9.00 12.80 3.80
Show 19500+1702 J 1107 CD 1915 2009 4 197 3.1 12.80 13.50 0.70
Quadruple system
4 visible stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
237.4
Precise sep
2.36
Constellation
Sagitta
last precise pa
237.4
last precise sep
2.36
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
19500+1702 HU 349 AB 1960 8 237 2.6 8.96 13.40 B9 194958.73+170141.9
19500+1702 HU 349 AB 2000 9 237 2.4 9.00 13.40 B9 194958.74+170141.9

If you need more information about this double, apply for a data request form to the WDS.