Ibn Yunus   Hi Zerida  Regarding Ibn Yunus he was actually born in baghdad then later moved to Egypt But still I left the Egyptian Category since he lived he probably lived most of his life there I hope you agree with me that you can be an arab and an egyptian at the same time  Another famous arab egyptian astronomer was Mashallah I provided sources that mention him as an egyptian but it gets continusly removed by the persians Please have a look at it   Cheers