20277+4507 BKO 154EK

 
 
20h 27m 34.68s +45 06' 54.6" P.A. 109 sep 4.7 mag 11.20,13.00
 
 
Coord 2000
20277+4507
Discov num
BKO 154
Comp
EK
Coord arcsec 2000
20 27 34.68 +45 06 54.6
Date first
1998
Date last
2003
Obs
3
Pa first
107
Pa last
109
P.A. Now (θ)
109°
Sep first
4.8
Sep last
4.7
Sep. Now (ρ)
4.7"
Mag pri
11.20
Mag sec
13.00
delta mag (ΔM)
1.8
Spectral class
Pri motion ra
-004
Sec motion ra
Pri motion dec
+003
Sec motion dec
Notes
Nature of this double is uncertain.
 
 
20277+4507 SYSTEM COMPONENTS
 
 
Show name SAO coord_2000 discov# comp first last obs pa sep mag1 mag2 d_mag orb current
Show 20277+4507 ROE 43 AB 1910 2003 5 317 17.5 9.38 14.80 5.42
Show 20277+4507 ROE 43 AC 1910 2003 4 312 52.7 9.38 13.19 3.81
Show 20277+4507 ROE 43 AD 1910 2003 5 271 42.6 9.38 12.47 3.09
Show 20277+4507 ROE 43 AE 1892 2003 10 282 83.0 9.38 11.19 1.81
Show 20277+4507 ROE 43 AF 1892 2003 9 336 87.3 9.38 12.40 3.02
Show 20277+4507 ROE 43 AG 1892 2003 9 282 102.7 9.38 12.85 3.47
Show 20277+4507 BKO 154 AH 1998 2003 3 224 18.6 9.38 12.70 3.32
Show 20277+4507 BKO 154 AI 1998 2003 3 64 23.9 9.38 14.00 4.62
Show 20277+4507 BKO 154 CJ 1998 2003 3 331 18.0 13.40 13.90 0.50
Show 20277+4507 BKO 154 EK 1998 2003 3 109 4.7 11.20 13.00 1.80 <===
11-fold system
11 visible stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
109.1
Precise sep
4.66
Constellation
Cygnus
last precise pa
109.1
last precise sep
4.66
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
20277+4507 BKO 154 EK 2003 2 109 4.7 11.20 13.00 D 202734.68+450654.6

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