20301+4857 GUI 32 AD

 
 
20h 30m 03.53s +48 57' 05.6" P.A. 44.00 sep 131.1 mag 4.92,11.99 Sp B2.5IV dist. 278.55 pc (908.63 l.y.)
 
 
Coord 2000 20301+4857 Discov num GUI  32 Comp AD Coord arcsec 2000 20 30 03.53 +48 57 05.6
Date first 1899 Date last 2015 Obs 7
Pa first 45 Pa last 44.3 P.A. Now (θ) 44.3°
Sep first 133.1 Sep last 131.057 Sep. Now (ρ) 131.057"
Mag pri 4.92 Mag sec 11.99 delta mag (ΔM) 7.07 Spectral class B2.5IV (blue-white)
Pri motion ra +011 Sec motion ra -002
Pri motion dec +007 Sec motion dec -005
Notes N (See Notes)
rPM=1.357
This double is not physical.
 
 
20301+4857 SYSTEM COMPONENTS
 
 
Show name SAO coord wds_name last obs pa sep mag1 mag2 d_mag orb current
Show 49712 20 30 04 +48 57 06 BU 669 AB 2013 10 336 15.0 4.95 12.90 7.95
Show Ome1 Cyg 49712 20 30 04 +48 57 06 BU 669 AC 2013 11 89 55.8 4.92 11.77 6.85
Show 49712 20 30 04 +48 57 06 GUI 32 AD 2015 7 44 131.1 4.92 11.99 7.07 <===
Quadruple system
4 estimated visually detectable stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Constellation Cygnus SAO 49712 HIP 101138 Tycho2 3581-02031-1
Gaia DR2 2083947891862120192 HD 195556 HR 7844 GC 28537
ADS 13932 BD BD+48 3142 Bayer Omega 1 Cygni Bayer name Ome1 Cyg
Flamsteed 45 Cygni Flamsteed name 45 Cyg FK5 3641 Distance 278.55
Distance ly 908.63 Bayer greek ω1 Cyg