19544+3918 SEI 721 AB (HD 226471)

 
 
19h 54m 24.36s +39° 17' 18.0" P.A. 199.00 sep 6.2 mag 11.10,12.20 Sp A0
 
 
Coord 2000 19544+3918 Discov num SEI 721 Comp AB Coord arcsec 2000 19 54 24.36 +39 17 18.0
Date first 1896 Date last 2015 Obs 12
Pa first 225 Pa last 199 P.A. Now (θ) 199°
Sep first 14.4 Sep last 6.2 Sep. Now (ρ) 6.2"
Mag pri 11.10 Mag sec 12.20 delta mag (ΔM) 1.1 Spectral class A0 (white)
Pri motion ra +000 Sec motion ra +061
Pri motion dec -003 Sec motion dec +032
Notes N (See Notes)
rPM=1.021
This double is not physical.
 
 
19544+3918 SYSTEM COMPONENTS
 
 
Show name SAO coord wds_name last obs pa sep mag1 mag2 d_mag orb current
Show HD 226471 19 54 24 +39 17 18 SEI 721 AB 2015 12 199 6.2 11.10 12.20 1.10 <===
Show 19 54 24 +39 17 18 SEI 722 AC 2015 11 65 21.2 11.10 12.50 1.40
Show 19 54 24 +39 17 18 HJ 2909 AD 2015 12 246 30.6 11.10 12.40 1.30
Quadruple system
4 estimated visually detectable stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Name HD 226471 Constellation Cygnus Tycho2 3137-00703-1 Gaia DR2 2073383096956069248
HD 226471
 
 
WDS 19544+3918 SEI 721 AB (HD 226471) : NOTES
 
 
discov_num notes refcode
HJ 2909 AD: SEI 720. Nsn2017b
 
 
REFERENCES
 
 
refcode metd author reference
Nsn2017b not - Nanson, J. ...................
Nsn2017b private communication, 2017
 
 
DISCOVERER
 
 
idgroup discov author
1 HJ Herschel, J.F.W.
50 SEI Scheiner, J.
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
19544+3918 SEI 721 AB 1929 3 221 11.3 11.10 12.40 195424.36+391718.0
19544+3918 SEI 721 AB 2002 5 203 6.9 11.10 12.20 195424.36+391718.0
19544+3918 SEI 721 AB 2014 6 199 6.2 11.10 12.20 A0 195424.36+391718.0
19544+3918 SEI 721 AB 2015 7 199 6.2 11.10 12.20 A0 195424.36+391718.0

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WDS 19544+3918 SEI 721 AB (HD 226471) : VISUAL OBSERVATIONS REPORTS
 
 
No records found.


 
 
WDS 19544+3918 SEI 721 AB (HD 226471) : MEASURES
 
 
No records found.

 
 
WDS 19544+3918 (HD 226471) : VIRTUAL EYEPIECE
 
 

virtual eyepiece
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Radius:
Components only
 
 
WDS 19544+3918 (HD 226471) : ALADIN DSS IMAGE @
 
 
Error -22130
Not valid ID.
Error -22130
Not valid ID.
Error -27220
Not valid ID.