20423+4549 CTT  15BE

 
 
20h 42m 19.66s +45 49' 53.1" P.A. 142 sep 87.9 mag 10.58,10.55
 
 
Coord 2000
20423+4549
Discov num
CTT  15
Comp
BE
Coord arcsec 2000
20 42 19.66 +45 49 53.1
Date first
1892
Date last
2008
Obs
7
Pa first
142
Pa last
142
P.A. Now (θ)
142°
Sep first
88.0
Sep last
87.9
Sep. Now (ρ)
87.9"
Mag pri
10.58
Mag sec
10.55
delta mag (ΔM)
0.03
Spectral class
Pri motion ra
-001
Sec motion ra
-001
Pri motion dec
-009
Sec motion dec
-002
Notes
N (See Notes)
rPM=0.773
Nature of this double is uncertain.
 
 
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
141.5
Precise sep
87.9
Cdsa2 id
CTT 15 BE
Constellation
Cygnus
Ra deg
20.70546111111111
De deg
45.83141666666667
last precise pa
141.5
last precise sep
87.9
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
20423+4549 CTT 15 BE 2008 6 142 87.9 10.58 10.30 D 204219.66+454953.1

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