20303+1054 BU   63AB (1 Del)

 
 
20h 30m 17.95s +10 53' 45.3" P.A. 347 sep 0.9 mag 6.20,8.02 Sp Be+B dist. 227.79 pc (743.05 l.y.)
 
 
Coord 2000
20303+1054
Discov num
BU   63
Comp
AB
Coord arcsec 2000
20 30 17.95 +10 53 45.3
Date first
1872
Date last
2016
Obs
84
Pa first
340
Pa last
347
P.A. Now (θ)
347°
Sep first
0.7
Sep last
0.9
Sep. Now (ρ)
0.9"
Mag pri
6.20
Mag sec
8.02
delta mag (ΔM)
1.82
Spectral class
Be+B (blue-white/blue-white)
Pri motion ra
+014
Sec motion ra
+014
Pri motion dec
-003
Sec motion dec
-003
Notes
N (See Notes)
Nature of this double is uncertain.
 
 
20303+1054 SYSTEM COMPONENTS
 
 
Show name SAO coord_2000 discov# comp first last obs pa sep mag1 mag2 d_mag orb current
Show 1 Del 106172 20303+1054 BU 63 AB 1872 2016 84 347 0.9 6.20 8.02 1.82 <===
Show 20303+1054 BU 297 AC 1885 2006 10 340 16.9 6.20 14.40 8.20
Triple system
3 visible stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
347.2
Precise sep
0.884
Name
1 Del
Constellation
Delphinus
SAO
106172
HIP
101160
Tycho2
1091-01875-1
Gaia DR2
31170644352
HD
195325
HR
7836
GC
28525
BD
BD+10 4303
Flamsteed
1 Delphini
Flamsteed name
1 Del
Distance
227.79
Distance ly
743.05
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
20303+1054 BU 63 AB 2004 81 349 0.9 6.20 8.02 A1eShell N D 203017.95+105345.3
20303+1054 BU 63 AB 2007 82 349 0.9 6.20 8.02 A1eShell N D 203017.95+105345.3
20303+1054 BU 63 AB 2009 83 350 0.9 6.20 8.02 A1eShell N D 203017.95+105345.3
20303+1054 BU 63 AB 2016 84 347 0.9 6.20 8.02 Be+B N 203017.95+105345.3

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