Eclipsing binary images at max and min

American Association of Variable Star Observers (AAVSO)
Wed, 03/29/2023 - 21:40

Greetings one and all. I'm new to this forum but there is a reason for that as I have come with a request. I'm working with Deborah Shapley, the granddaughter of Harlow Shapley, on the website, "The Harlow Shapley Project" ( Ms. Shapley has asked for my help in explaining the importance of eclipsing binary stars to a lay audience, with reference to research conducted by HS in the early part of the 20th century. What she would like to illustrate are images (not light curves – we have enough of those) that show an eclipsing binary at both maximum and minimum. She is particularly interested in XZ Cyg, TW And, and Y Leo. However, if none are available, just about any eclipsing binary would suffice if it clearly shows both phases, or a series of phases. In fact, I would be interested in using the good ones in my book series, Annals of the Deep Sky ( This would be an important contribution to historical astronomy. 

Many thanks in advance!