A gif that alternates back and forth between the same region on the two photo plates. In the second, a very faint dot is barely visible between two wax pencil lines. The word “VAR!” is written next to it, in red.

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1. Robert McNees (mcnees@mastodon.social)'s status on Friday, 06-Oct-2023 15:51:26 UTC Robert McNees

   in reply to

   Here is a blink comparator gif of the two plates, switching back and forth with a 1s interval and cropped to show the region with the Cepheid variable.

   Do you think you would have spotted it?

   The images I have access to have been compressed, and the quality isn't too high, so it becomes almost impossible to see it on the screen. It would have been more apparent (though still very faint) on the original plate.