Visual Observations of Four Classical Cepheids
Volume 14 number 1 (1985)
- Jerzy Speil
- Z
Abstract
Results of visual observations of SU Cas, δ Cep, η Aql, and X Cyg are presented. The reported period-increase of η Aql around JD 2437000 is confirmed.
Volume 14 number 1 (1985)
Results of visual observations of SU Cas, δ Cep, η Aql, and X Cyg are presented. The reported period-increase of η Aql around JD 2437000 is confirmed.