20181+4122 ES 1674

 
 
20h 18m 03.61s +41 22' 14.8" P.A. 125 sep 4.9 mag 9.64,10.27 Sp B0
 
 
Coord 2000
20181+4122
Discov num
ES 1674
Comp
Coord arcsec 2000
20 18 03.61 +41 22 14.8
Date first
1892
Date last
2015
Obs
13
Pa first
121
Pa last
125
P.A. Now (θ)
125°
Sep first
5.2
Sep last
4.9
Sep. Now (ρ)
4.9"
Mag pri
9.64
Mag sec
10.27
delta mag (ΔM)
0.63
Spectral class
B0 (blue-white)
Pri motion ra
-008
Sec motion ra
-001
Pri motion dec
-003
Sec motion dec
-010
Notes
N (See Notes)
rPM=0.985
This double is not physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
124.9
Precise sep
4.929
Constellation
Cygnus
Tycho2
3159-01888-1
Gaia DR2
75943278976
HD
228827
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
20181+4122 ES 1674 2006 9 125 4.9 9.64 10.27 B0 N D 201803.61+412214.8
20181+4122 ES 1674 2008 10 126 4.9 9.64 10.27 B0 N D 201803.61+412214.8
20181+4122 ES 1674 2010 12 124 4.7 9.64 10.27 B0 N 201803.61+412214.8
20181+4122 ES 1674 2015 13 125 4.9 9.64 10.27 B0 N 201803.61+412214.8

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