18168-1631 SNA 84 AC (HD 167633)

 
 
18h 16m 49.65s -16° 31' 04.3" P.A. 199.00 sep 5.5 mag 7.35,10.62 Sp O6.5V dist. 649.35 pc (2118.18 l.y.)
 
 
Coord 2000 18168-1631 Discov num SNA  84 Comp AC Coord arcsec 2000 18 16 49.65 -16 31 04.3
Date first 1999 Date last 2015 Obs 3
Pa first 199 Pa last 199.2 P.A. Now (θ) 199.2°
Sep first 5.4 Sep last 5.501 Sep. Now (ρ) 5.501"
Mag pri 7.35 Mag sec 10.62 delta mag (ΔM) 3.27 Spectral class O6.5V (blue)
Pri motion ra +001 Sec motion ra
Pri motion dec -003 Sec motion dec
Notes N V K (See Notes, Proper motion indicates physical, K-band or other infrared magnitudes)
Visually invisible, K-band or other infrared star : Summary line gives K-band or other infrared (>1 micron) magnitudes
This double is physical.
 
 
18168-1631 SYSTEM COMPONENTS
 
 
Show name SAO coord wds_name last obs pa sep mag1 mag2 d_mag orb current
Show 161251 18 16 50 -16 31 04 SNA 84 AB 2012 1 117 5.1 7.35 12.94 5.59
Show HD 167633 161251 18 16 50 -16 31 04 SNA 84 AC 2015 3 199 5.5 7.35 10.62 3.27 <===
Show 161251 18 16 50 -16 31 04 SNA 84 AD 2015 3 261 6.8 7.35 13.07 5.72
Quadruple system
4 estimated visually detectable stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Name HD 167633 Constellation Sagittarius SAO 161251 HIP 89584
Tycho2 6265-02178-1 Gaia DR2 4097600496363078912 HD 167633 BD BD-16 4786
Distance 649.35 Distance ly 2118.18