20303+1054 BU  297AC

 
 
20h 30m 17.95s +10 53' 45.3" P.A. 340 sep 16.9 mag 6.20,14.40 Sp Be dist. 227.79 pc (743.05 l.y.)
 
 
Coord 2000
20303+1054
Discov num
BU  297
Comp
AC
Coord arcsec 2000
20 30 17.95 +10 53 45.3
Date first
1885
Date last
2006
Obs
10
Pa first
349
Pa last
340
P.A. Now (θ)
340°
Sep first
16.7
Sep last
16.9
Sep. Now (ρ)
16.9"
Mag pri
6.20
Mag sec
14.40
delta mag (ΔM)
8.2
Spectral class
Be (blue-white)
Pri motion ra
+019
Sec motion ra
Pri motion dec
+004
Sec motion dec
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
339.9
Precise sep
16.9
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 297 AC 2006 9 340 16.9 6.20 14.40 A1eShell D 203017.95+105345.3

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