20301+4857 GUI  32AD

 
 
20h 30m 03.53s +48 57' 05.6" P.A. 44 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
P.A. Now (θ)
44°
Sep first
133.1
Sep last
131.1
Sep. Now (ρ)
131.1"
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_2000 discov# comp first last obs pa sep mag1 mag2 d_mag orb current
Show Ome1 Cyg 49712 20301+4857 BU 669 AB 1878 2013 10 336 15.0 4.95 12.90 7.95
Show 20301+4857 BU 669 AC 1878 2013 11 89 55.8 4.92 11.77 6.85
Show 20301+4857 GUI 32 AD 1899 2015 7 44 131.1 4.92 11.99 7.07 <===
Quadruple system
4 visible stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
44.3
Precise sep
131.057
Constellation
Cygnus
SAO
49712
HIP
101138
Tycho2
3581-02031-1
Gaia DR2
91862120192
HD
195556
HR
7844
GC
28537
BD
BD+48 3142
Bayer
Omega 1 Cygni
Bayer name
Ome1 Cyg
Flamsteed
45 Cygni
Flamsteed name
45 Cyg
Distance
278.55
Distance ly
908.63
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
20301+4857 GUI 32 AD 2000 4 44 131.3 4.95   B2.5IV D 203003.53+485705.6
20301+4857 GUI 32 AD 2003 5 44 131.6 4.95 12.10 B2.5IV N D 203003.53+485705.6
20301+4857 GUI 32 AD 2013 6 44 130.9 4.92 11.99 B2.5IV N 203003.53+485705.6
20301+4857 GUI 32 AD 2015 7 44 131.1 4.92 11.99 B2.5IV N 203003.53+485705.6

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