20146+3855 ES 2047AD

 
 
20h 14m 37.91s +38 55' 29.2" P.A. 103 sep 10.6 mag 9.50,14.00 Sp B0.5III
 
 
Coord 2000
20146+3855
Discov num
ES 2047
Comp
AD
Coord arcsec 2000
20 14 37.91 +38 55 29.2
Date first
1923
Date last
2015
Obs
4
Pa first
100
Pa last
103
P.A. Now (θ)
103°
Sep first
11.2
Sep last
10.6
Sep. Now (ρ)
10.6"
Mag pri
9.50
Mag sec
14.00
delta mag (ΔM)
4.5
Spectral class
B0.5III (blue-white)
Pri motion ra
-002
Sec motion ra
+051
Pri motion dec
-004
Sec motion dec
-017
Notes
rPM=1.015
This double is not physical.
 
 
20146+3855 SYSTEM COMPONENTS
 
 
Show name SAO coord_2000 discov# comp first last obs pa sep mag1 mag2 d_mag orb current
Show 20146+3855 ES 2047 AB 1923 2015 7 175 33.2 9.48 11.23 1.75
Show 20146+3855 ES 2047 AD 1923 2015 4 103 10.6 9.50 14.00 4.50 <===
Show 20146+3855 ES 2047 AE 1998 2015 3 106 27.6 9.50 13.30 3.80
Show 20146+3855 ES 2047 BC 1923 2015 6 198 4.8 10.60 10.80 0.20
Quintuple system
5 visible stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
103.2
Precise sep
10.609
Constellation
Cygnus
SAO
69683
Tycho2
3151-01650-1
Gaia DR2
35936730240
HD
228519
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
20146+3855 ES 2047 AD 1998 2 103 10.6 9.49 14.00 D 201437.91+385529.2
20146+3855 ES 2047 AD 2002 3 103 10.6 9.50 14.00 D 201437.91+385529.2
20146+3855 ES 2047 AD 2015 4 103 10.6 9.50 14.00 B0.5III 201437.91+385529.2

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