20423+4549 BKO 158EG

 
 
20h 42m 24.92s +45 48' 44.2" P.A. 221 sep 28.7 mag 10.55,14.00
 
 
Coord 2000
20423+4549
Discov num
BKO 158
Comp
EG
Coord arcsec 2000
20 42 24.92 +45 48 44.2
Date first
1998
Date last
2008
Obs
4
Pa first
221
Pa last
221
P.A. Now (θ)
221°
Sep first
28.8
Sep last
28.7
Sep. Now (ρ)
28.7"
Mag pri
10.55
Mag sec
14.00
delta mag (ΔM)
3.45
Spectral class
Pri motion ra
-001
Sec motion ra
+013
Pri motion dec
-002
Sec motion dec
+004
Notes
N (See Notes)
rPM=1.12
This double is not physical.
 
 
20423+4549 SYSTEM COMPONENTS
 
 
Show name SAO coord_2000 discov# comp first last obs pa sep mag1 mag2 d_mag orb current
Show 20423+4549 STT 411 AB 1845 2012 37 349 31.5 7.66 10.58 2.92
Show 20423+4549 WAL 132 AC 1892 2008 10 357 70.2 7.66 10.23 2.57
Show 20423+4549 BKO 158 AF 1998 2012 5 144 41.0 7.66 12.20 4.54
Show 20423+4549 WAL 132 BC 1892 2008 10 4 40.1 10.58 10.23 0.35
Show 20423+4549 CTT 15 BD 1892 2008 8 178 86.7 10.58 10.60 0.02
Show 20423+4549 CTT 15 BE 1892 2008 7 142 87.9 10.58 10.55 0.03
Show 20423+4549 BKO 158 EF 1998 2012 5 281 25.0 10.55 12.20 1.65
Show 20423+4549 BKO 158 EG 1998 2008 4 221 28.7 10.55 14.00 3.45 <===
Show 20423+4549 BKO 158 EH 1998 2008 4 340 51.7 10.55 12.60 2.05
Show 20423+4549 BKO 158 EI 1998 2008 4 236 39.2 10.55 13.60 3.05
Ninefold system
9 visible stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
220.9
Precise sep
28.7
Cdsa2 id
BKO 158 EG
Constellation
Cygnus
Ra deg
20.70692222222222
De deg
45.81227777777777
last precise pa
220.9
last precise sep
28.7
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
20423+4549 BKO 158 EG 2008 3 221 28.7 10.30 14.00 D 204224.92+454844.2

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