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Visual Observations of Four Classical Cepheids

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Jerzy Speil

Zamek Ksiaz, 58-306 Walbrzych, Poland

 

Abstract

 

Results of visual observations of SU Cas, Delta Cep, Eta Aql, and X Cyg are presented. The reported period-increase of Eta Aql around JD 2437000 is confirmed.

 

Link to ADS abstract, article and citation information

 
 
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