20488+3426 SEI 1256

 
 
20h 48m 47.96s +34° 26' 07.6" P.A. 279.00 sep 26.3 mag 11.27,13.29
 
 
Coord 2000 20488+3426 Discov num SEI1256 Comp Coord arcsec 2000 20 48 47.96 +34 26 07.6
Date first 1896 Date last 2015 Obs 9
Pa first 278 Pa last 278.5 P.A. Now (θ) 278.5°
Sep first 26.6 Sep last 26.337 Sep. Now (ρ) 26.337"
Mag pri 11.27 Mag sec 13.29 delta mag (ΔM) 2.02 Spectral class
Pri motion ra -002 Sec motion ra +004
Pri motion dec -005 Sec motion dec -001
Notes N (See Notes)
rPM=1.339
This double is not physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Constellation Cygnus Tycho2 2695-01350-1 Gaia DR2 1869422693566745088
 
 
WDS 20488+3426 SEI 1256 : NOTES
 
 
discov_num notes refcode
SEI1256 V2247 Cyg. Primary is eclipsing binary of Algol-type, period 1.25486d. Zas2014
 
 
REFERENCES
 
 
refcode metd author reference
Zas2014 - Zasche, P. ...................
Zas2014 private communication, 2014
 
 
DISCOVERER
 
 
idgroup discov author
1 SEI Scheiner, J.
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
20488+3426 SEI1256 1999 3 279 26.4 10.80 12.60 D 204847.96+342607.6
20488+3426 SEI1256 2002 4 279 26.3 10.80 12.60 D 204847.96+342607.6
20488+3426 SEI1256 2010 5 279 26.4 11.27 13.29 N 204847.96+342607.6
20488+3426 SEI1256 2015 6 279 26.3 11.27 13.29 N 204847.96+342607.6

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WDS 20488+3426 SEI 1256 : VISUAL OBSERVATIONS REPORTS
 
 
No records found.


 
 
WDS 20488+3426 SEI 1256 : MEASURES
 
 
No records found.

 
 
WDS 20488+3426 : VIRTUAL EYEPIECE
 
 

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Radius:
Components only
 
 
WDS 20488+3426 : ALADIN DSS IMAGE @
 
 
Error -22130
Not valid ID.
Error -22130
Not valid ID.
Error -27220
Not valid ID.