Mairan (co-longitude 44 degrees (sunrise)) is located in the Jura Mountains between Oceanus Procellarum to the west and Mare Imbrium to the east. Page 36 of our Handbook will tell you when it becomes visible (at sunrise) and invisible (at sunset). Mairan has a similar latitude to the prominent crater Plato, but is 34 degrees east of it. Mairan has a similar longitude to Aristarchus but is 18 degrees north of it.
British Astronomical Association
Supporting amateur astronomers since 1890