18301+0404 STF2322AC

 
 
18h 30m 05.12s +04 03' 55.3" P.A. 295 sep 67.7 mag 6.67,12.79 Sp B2V dist. 507.61 pc (1655.82 l.y.)
 
 
Coord 2000
18301+0404
Discov num
STF2322
Comp
AC
Coord arcsec 2000
18 30 05.12 +04 03 55.3
Date first
1912
Date last
2009
Obs
9
Pa first
295
Pa last
295
P.A. Now (θ)
295°
Sep first
66.9
Sep last
67.7
Sep. Now (ρ)
67.7"
Mag pri
6.67
Mag sec
12.79
delta mag (ΔM)
6.12
Spectral class
B2V (blue-white)
Pri motion ra
-001
Sec motion ra
-005
Pri motion dec
-007
Sec motion dec
-004
Notes
N (See Notes)
rPM=0.707
Nature of this double is uncertain.
 
 
18301+0404 SYSTEM COMPONENTS
 
 
Show name SAO coord_2000 discov# comp first last obs pa sep mag1 mag2 d_mag orb current
Show 123571 18301+0404 CHR 72 Aa,Ab 1985 2015 13 264 0.1 6.70 9.60 2.90
Show 123571 18301+0404 STF2322 AB 1828 2012 28 316 1.8 6.67 11.28 4.61
Show 123571 18301+0404 STF2322 AC 1912 2009 9 295 67.7 6.67 12.79 6.12 <===
Show 123571 18301+0404 STF2322 AD 1912 2009 7 197 85.3 6.67 13.39 6.72
Quintuple system
4 visible stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
294.9
Precise sep
67.69
Constellation
Ophiuchus
SAO
123571
HIP
90676
Tycho2
0454-01662-1
HD
170580
HR
6941
BD
BD+03 3727
Distance
507.61
Distance ly
1655.82
last precise pa
294.9
last precise sep
67.69
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
18301+0404 STF2322 AC 2006 7 294 68.3 6.67 12.79 B2V D 183005.12+040355.3
18301+0404 STF2322 AC 2009 8 295 67.7 6.67 12.79 B2V N D 183005.12+040355.3

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