18335+0726 SLE 690AC

 
 
18h 33m 26.99s +07 25' 49.0" P.A. 304 sep 87.7 mag 9.66,11.38 Sp B8
 
 
Coord 2000
18335+0726
Discov num
SLE 690
Comp
AC
Coord arcsec 2000
18 33 26.99 +07 25 49.0
Date first
1919
Date last
2001
Obs
5
Pa first
304
Pa last
304
P.A. Now (θ)
304°
Sep first
88.9
Sep last
87.7
Sep. Now (ρ)
87.7"
Mag pri
9.66
Mag sec
11.38
delta mag (ΔM)
1.72
Spectral class
B8 (blue-white)
Pri motion ra
-021
Sec motion ra
-004
Pri motion dec
+005
Sec motion dec
+002
Notes
N (See Notes)
rPM=0.8
Nature of this double is uncertain.
 
 
18335+0726 SYSTEM COMPONENTS
 
 
Show name SAO coord_2000 discov# comp first last obs pa sep mag1 mag2 d_mag orb current
Show 18335+0726 SCJ 18 AB 1901 2016 19 197 46.0 9.66 9.77 0.11
Show 18335+0726 SLE 690 AC 1919 2001 5 304 87.7 9.66 11.38 1.72 <===
Show 18335+0726 SCJ 18 AD 1901 2001 3 119 16.6 9.66 13.90 4.24
Quadruple system
4 visible stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
304.1
Precise sep
87.746
Constellation
Ophiuchus
Tycho2
0458-00475-1
last precise pa
304.1
last precise sep
87.746
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
18335+0726 SLE 690 AC 1999 4 304 87.8 9.66 11.38 B8 D 183326.99+072549.0
18335+0726 SLE 690 AC 2001 5 304 87.7 9.66 11.38 B8 N D 183326.99+072549.0

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