20181+4044 STF 2666 AB (HD 193322)

 
 
20h 18m 06.99s +40 43' 55.6" P.A. 245.00 sep 2.8 mag 5.96,8.24 Sp O9IV+B1.5 dist. 595.24 pc (1941.67 l.y.)
 
 
Coord 2000 20181+4044 Discov num STF2666 Comp AB Coord arcsec 2000 20 18 06.99 +40 43 55.6
Date first 1831 Date last 2018 Obs 86
Pa first 242 Pa last 244.8 P.A. Now (θ) 244.8°
Sep first 2.7 Sep last 2.758 Sep. Now (ρ) 2.758"
Mag pri 5.96 Mag sec 8.24 delta mag (ΔM) 2.28 Spectral class O9IV+B1.5 (blue/blue-white)
Pri motion ra +001 Sec motion ra +001
Pri motion dec -010 Sec motion dec -010
Notes N (See Notes)
Nature of this double is uncertain.
 
 
20181+4044 SYSTEM COMPONENTS
 
 
Show name SAO coord wds_name last obs pa sep mag1 mag2 d_mag orb current
Show 49438 20 18 07 +40 43 56 CHR 96 Aa,Ab 2018 31 151 0.1 6.60 6.80 0.20 Y
Show HD 193322 49438 20 18 07 +40 43 56 STF 2666 AB 2018 86 245 2.8 5.96 8.24 2.28 <===
Show 49438 20 18 07 +40 43 56 STF 2666 AC 2006 13 207 34.0 5.96 10.70 4.74
Show 49438 20 18 07 +40 43 56 TAR 5 AD 2006 8 181 49.6 5.96 11.00 5.04
Show 20 18 06 +40 43 25 STF 2666 CD 2018 13 142 24.1 10.70 11.00 0.30
Quintuple system
4 estimated visually detectable stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Name HD 193322 Constellation Cygnus SAO 49438 HIP 100069
Tycho2 3155-02321-1 Gaia DR2 2062360626011542272 HD 193322 HR 7767
GC 28228 ADS 13672 BD BD+40 4103 Distance 595.24
Distance ly 1941.67