1968/10/01 by P. Maffei · 4 citations
Physics and Astronomy · Engineering · #Stellar, planetary, and galactic studies #Astronomical Observations and Instrumentation #History and Developments in Astronomy
paper · pdf · doi:10.1086/128698
openalex publication_date 1968/10/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/05/22
nor any other with as short a period as 033. To what class of variables AT Herculis belongs cannot be ascertained on the basis of present observations. If the small amplitude of 05 is correct, AT Herculis may be an eclipsing variable with an early K-type star as the brighter component. The present observations also show that the star is about half a magnitude fainter than given in the General Catalogue of Variable Stars.