EK Draconis: Long-term photometry on Sonneberg Sky-Patrol plates
Open Access
- 2 August 2002
- journal article
- Published by EDP Sciences in Astronomy & Astrophysics
- Vol. 391 (2) , 659-663
- https://doi.org/10.1051/0004-6361:20020860
Abstract
We performed long-term photometry of the young solar analog EK Draconis (HD 129333) using 1030 blue-sensitive Sky-Patrol plates taken at Sonneberg Observatory from 1958 onwards. A secular dimming of mag/y beginning around 1975 was found. Hence, the recent trend first observed with Automatic Photoelectric Telescopes (APTs) is confirmed and traced back to the mid-seventies.Keywords
This publication has 0 references indexed in Scilit: