16569-4031 COO 289AD

 
 
16h 56m 54.67s -40 30' 44.4" P.A. 237 sep 15.2 mag 7.27,9.61 Sp O6.5IIIf: dist. 395.26 pc (1289.34 l.y.)
 
 
Coord 2000
16569-4031
Discov num
COO 289
Comp
AD
Coord arcsec 2000
16 56 54.67 -40 30 44.4
Date first
1897
Date last
2016
Obs
9
Pa first
239
Pa last
237
P.A. Now (θ)
237°
Sep first
15.1
Sep last
15.2
Sep. Now (ρ)
15.2"
Mag pri
7.27
Mag sec
9.61
delta mag (ΔM)
2.34
Spectral class
O6.5IIIf: (blue)
Pri motion ra
+001
Sec motion ra
+004
Pri motion dec
-002
Sec motion dec
-003
Notes
N (See Notes)
rPM=0.632
Nature of this double is uncertain.
 
 
16569-4031 SYSTEM COMPONENTS
 
 
Show name SAO coord_2000 discov# comp first last obs pa sep mag1 mag2 d_mag orb current
Show 227479 16569-4031 CHR 254 Aa,Ab 1996 2014 5 310 0.1 7.50 9.30 1.80
Show 227479 16569-4031 RST5421 AB 1945 1999 3 129 7.3 7.27 13.00 5.73
Show 227479 16569-4031 COO 289 AC 1897 2016 10 253 7.9 7.27 9.48 2.21
Show 227479 16569-4031 COO 289 AD 1897 2016 9 237 15.2 7.27 9.61 2.34 <===
Show 227479 16569-4031 COO 289 AE 2016 2016 1 339 38.2 7.27 12.70 5.43
Show 227479 16569-4031 COO 289 CD 1897 1999 7 221 7.9 9.48 9.61 0.13
Sextuple system
5 visible stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
236.8
Precise sep
15.24
Constellation
Scorpius
SAO
227479
HIP
82936
Tycho2
7872-02169-1
HD
152723
CD
CD-4010986
CP
CP-40 7650
Distance
395.26
Distance ly
1289.34
last precise pa
236.8
last precise sep
15.24
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
16569-4031 COO 289 AD 1999 7 237 15.0 7.27 9.61 O6.5IIIf: D 165654.67-403044.4
16569-4031 COO 289 AD 2016 9 237 15.2 7.27 9.61 O6.5IIIf: N 165654.67-403044.4

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