User talk:2601:647:5500:77B0:8896:D5D8:D412:27E1

June 2022
Hello, I'm M.Bitton. I noticed that you added or changed content in an article, Reflecting telescope, but you didn't provide a reliable source. It's been removed and archived in the page history for now, but if you'd like to include a citation and re-add it, please do so. You can have a look at referencing for beginners. If you think I made a mistake, you can leave me a message on my talk page. Thank you. M.Bitton (talk) 00:29, 9 June 2022 (UTC)