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
2015
Obs
5
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 2015 38 349 31.8 7.66 10.58 2.92
Show 20423+4549 WAL 132 AC 1892 2015 11 357 71.2 7.66 10.23 2.57
Show 20423+4549 BKO 158 AF 1998 2015 6 143 41.0 7.66 12.20 4.54
Show 20423+4549 WAL 132 BC 1892 2015 11 4 40.1 10.58 10.23 0.35
Show 20423+4549 CTT 15 BD 1892 2015 9 178 86.6 10.58 10.60 0.02
Show 20423+4549 CTT 15 BE 1892 2015 8 141 87.9 10.58 10.55 0.03
Show 20423+4549 BKO 158 EF 1998 2015 6 281 24.9 10.55 12.20 1.65
Show 20423+4549 BKO 158 EG 1998 2015 5 221 28.7 10.55 14.00 3.45 <===
Show 20423+4549 BKO 158 EH 1998 2015 5 340 51.6 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
220.8
Precise sep
28.748
Constellation
Cygnus
SAO
49960
Tycho2
3574-03272-1
Gaia DR2
37851252352
 
 
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
20423+4549 BKO 158 EG 2015 5 221 28.7 10.55 14.00 N 204224.92+454844.2

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