@MaryMcIntyreAstro
Thanks for bringing those features to attention. I wasn't aware of them. I have a number of photos of the moon I've taken over the years and looked through them to see if I happened to have picked up those features.
Alas, as your article states, these are transient views that are only visible for perhaps a few hours, so sadly I didn't happen to capture most of them. But I captured one. The eyes of #Clavius.
#Clavius crater with #Camille #Flammarion 240 mm #refractor.
Juvisy observatory
2018 - green filter.
#Moon #Astrodon
#Clavius #Camille #Flammarion #refractor #moon #Astrodon
#Tycho and #Clavius at #Dawn
#Astronomy #Picture of the Day
#tycho #Clavius #dawn #astronomy #picture #apod
#tycho #Clavius #astronomy #picture #apod #moon