20305+3454 ES 2304

 
 
20h 30m 27.80s +34 54' 16.9" P.A. 39 sep 3.6 mag 10.11,13.90 Sp A5
 
 
Coord 2000
20305+3454
Discov num
ES 2304
Comp
Coord arcsec 2000
20 30 27.80 +34 54 16.9
Date first
1927
Date last
2015
Obs
3
Pa first
46
Pa last
39
P.A. Now (θ)
39°
Sep first
3.2
Sep last
3.6
Sep. Now (ρ)
3.6"
Mag pri
10.11
Mag sec
13.90
delta mag (ΔM)
3.79
Spectral class
A5 (white)
Pri motion ra
-002
Sec motion ra
+159
Pri motion dec
-002
Sec motion dec
+200
Notes
U (Proper motion indicates non-physical)
rPM=1.011
This double is not physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
39
Precise sep
3.638
Constellation
Cygnus
Tycho2
2693-01056-1
Gaia DR2
02309501184
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
20305+3454 ES 2304 1927 1 46 3.2 10.11 13.90 A5 203027.80+345416.9
20305+3454 ES 2304 2011 2 47 3.7 10.11 13.90 A5 u 203027.80+345416.9
20305+3454 ES 2304 2015 3 39 3.6 10.11 13.90 A5 U 203027.80+345416.9

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