20305+4434 ES 1442

 
 
20h 30m 27.93s +44 33' 56.9" P.A. 265.00 sep 2.7 mag 10.29,14.00
 
 
Coord 2000
20305+4434
Discov num
ES 1442
Comp
Coord arcsec 2000
20 30 27.93 +44 33 56.9
Date first
1915
Date last
2015
Obs
2
Pa first
266
Pa last
265
P.A. Now (θ)
265°
Sep first
2.3
Sep last
2.7
Sep. Now (ρ)
2.7"
Mag pri
10.29
Mag sec
14.00
delta mag (ΔM)
3.71
Spectral class
Pri motion ra
+005
Sec motion ra
Pri motion dec
-002
Sec motion dec
Notes
S (Parallax indidates non-physical)
Visually invisible, K-band or other infrared star This double is not physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
264.8
Precise sep
2.726
Constellation
Cygnus
Tycho2
3165-00880-1
Gaia DR2
79753566336
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
20305+4434 ES 1442 1915 1 266 2.3 10.29 14.00 203027.93+443356.9
20305+4434 ES 1442 2015 2 265 2.7 10.29 14.00 S 203027.93+443356.9

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