20246+0531 BU  664AB

 
 
20h 24m 33.24s +05 30' 34.1" P.A. 287 sep 8.9 mag 7.23,12.70 Sp B8V dist. 425.53 pc (1388.08 l.y.)
 
 
Coord 2000
20246+0531
Discov num
BU  664
Comp
AB
Coord arcsec 2000
20 24 33.24 +05 30 34.1
Date first
1878
Date last
2014
Obs
11
Pa first
285
Pa last
287
P.A. Now (θ)
287°
Sep first
9.7
Sep last
8.9
Sep. Now (ρ)
8.9"
Mag pri
7.23
Mag sec
12.70
delta mag (ΔM)
5.47
Spectral class
B8V (blue-white)
Pri motion ra
+006
Sec motion ra
Pri motion dec
-007
Sec motion dec
Notes
N (See Notes)
Nature of this double is uncertain.
 
 
20246+0531 SYSTEM COMPONENTS
 
 
Show name SAO coord_2000 discov# comp first last obs pa sep mag1 mag2 d_mag orb current
Show 20246+0531 BU 664 AB 1878 2014 11 287 8.9 7.23 12.70 5.47 <===
Show 20246+0531 FOX9034 AC 1915 2015 6 89 35.6 7.23 13.60 6.37
Triple system
3 visible stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
287.2
Precise sep
8.93
Constellation
Delphinus
HIP
100654
Tycho2
0505-00251-1
Gaia DR2
04700547328
HD
194262
BD
BD+05 4503
Distance
425.53
Distance ly
1388.08
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
20246+0531 BU 664 AB 2006 8 288 8.6 7.20 12.70 B8V N D 202433.24+053034.1
20246+0531 BU 664 AB 2013 9 288 8.6 7.20 12.70 B8V N 202433.24+053034.1
20246+0531 BU 664 AB 2014 11 287 8.9 7.23 12.70 B8V N 202433.24+053034.1

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