16551-4459 CHR 253AB

 
 
16h 55m 06.45s -44 59' 21.3" P.A. 337 sep 0.6 mag 8.20,11.00 Sp O5
 
 
Coord 2000
16551-4459
Discov num
CHR 253
Comp
AB
Coord arcsec 2000
16 55 06.45 -44 59 21.3
Date first
1996
Date last
2014
Obs
2
Pa first
338
Pa last
337
P.A. Now (θ)
337°
Sep first
0.6
Sep last
0.6
Sep. Now (ρ)
0.6"
Mag pri
8.20
Mag sec
11.00
delta mag (ΔM)
2.8
Spectral class
O5 (blue)
Pri motion ra
+000
Sec motion ra
Pri motion dec
-003
Sec motion dec
Notes
N (See Notes)
Nature of this double is uncertain.
 
 
16551-4459 SYSTEM COMPONENTS
 
 
Show name SAO coord_2000 discov# comp first last obs pa sep mag1 mag2 d_mag orb current
Show 227426 16551-4459 SNA 59 Aa,Ab 2012 2012 2 120 0.1 6.50 9.80 3.30
Show 227426 16551-4459 CHR 253 AB 1996 2014 2 337 0.6 8.20 11.00 2.80 <===
Show 227426 16551-4459 SNA 59 AC 2012 2012 1 222 3.5 6.50 12.69 6.19
Show 227426 16551-4459 SNA 59 AD 1999 2012 2 127 7.4 6.50 7.00 0.50
Quintuple system
4 visible stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
336.6
Precise sep
0.56
Constellation
Scorpius
SAO
227426
Tycho2
7880-00313-1
HD
152386
last precise pa
336.6
last precise sep
0.56
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
16551-4459 CHR 253 AB 1996 1 338 0.6 8.20 11.00 O5 N 165506.45-445921.3
16551-4459 CHR 253 AB 2012 3 120 0.1 8.11   O5 N 165506.45-445921.3
16551-4459 CHR 253 AB 2014 2 337 0.6 8.20 11.00 O5 N 165506.45-445921.3

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