20179+4319 ES 1440

 
 
20h 17m 54.49s +43 18' 48.9" P.A. 258 sep 2.7 mag 10.40,11.40
 
 
Coord 2000
20179+4319
Discov num
ES 1440
Comp
Coord arcsec 2000
20 17 54.49 +43 18 48.9
Date first
1915
Date last
2011
Obs
3
Pa first
260
Pa last
258
P.A. Now (θ)
258°
Sep first
2.6
Sep last
2.7
Sep. Now (ρ)
2.7"
Mag pri
10.40
Mag sec
11.40
delta mag (ΔM)
1
Spectral class
Pri motion ra
+018
Sec motion ra
Pri motion dec
-002
Sec motion dec
Notes
Nature of this double is uncertain.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
258.2
Precise sep
2.66
Constellation
Cygnus
Tycho2
3163-00100-1
Gaia DR2
86806915840
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
20179+4319 ES 1440 1936 2 254 2.5 10.40 11.40 201754.49+431848.9
20179+4319 ES 1440 2011 3 258 2.7 10.40 11.40 201754.49+431848.9

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