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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