20096+3459 SEI 929 (HD 227998)

 
 
20h 09m 34.34s +34° 58' 36.2" P.A. 31.00 sep 20.9 mag 10.87,11.60 Sp A0
 
 
Coord 2000 20096+3459 Discov num SEI 929 Comp Coord arcsec 2000 20 09 34.34 +34 58 36.2
Date first 1896 Date last 2015 Obs 15
Pa first 30 Pa last 30.8 P.A. Now (θ) 30.8°
Sep first 21.9 Sep last 20.86 Sep. Now (ρ) 20.86"
Mag pri 10.87 Mag sec 11.60 delta mag (ΔM) 0.73 Spectral class A0 (white)
Pri motion ra +000 Sec motion ra +001
Pri motion dec -002 Sec motion dec -010
Notes
rPM=0.802
This double is not physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Name HD 227998 Constellation Cygnus Tycho2 2679-01212-1 Gaia DR2 2058766704770748928
HD 227998
 
 
WDS 20096+3459 SEI 929 (HD 227998) : NOTES
 
 
No records found.

 
 
REFERENCES
 
 
refcode metd author reference
Sei1908 Pa - Scheiner, J. 1908POPot..59.....S
Sei1908 +Po Pub. Obs. Potsdam 20, #59, 1908
Sei1913A Pa - Scheiner, J. 1913QB811.B8.......
Sei1913A cited by Burnham (Carnegie Inst. Wash. #168, 1913)
Sei1932A Pa - Scheiner, J. 1932QB821.A43......
Sei1932A cited in ADS (Aitken Double Star Cat.), 1932
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
20096+3459 SEI 929 2000 7 31 21.0 10.87 11.60 D 200934.34+345836.2
20096+3459 SEI 929 2002 8 31 20.9 10.87 11.60 D 200934.34+345836.2
20096+3459 SEI 929 2011 9 31 20.8 10.87 11.60 D 200934.34+345836.2
20096+3459 SEI 929 2015 11 31 20.8 10.87 11.60 A0 200934.34+345836.2

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WDS 20096+3459 SEI 929 (HD 227998) : VISUAL OBSERVATIONS REPORTS
 
 
No records found.


 
 
WDS 20096+3459 SEI 929 (HD 227998) : MEASURES
 
 
No records found.

 
 
WDS 20096+3459 (HD 227998) : VIRTUAL EYEPIECE
 
 

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WDS 20096+3459 (HD 227998) : ALADIN DSS IMAGE @
 
 
Error -22130
Not valid ID.
Error -22130
Not valid ID.
Error -27220
Not valid ID.