High Andean air above Cusco thins haze and sharpens southern deep-sky targets. Altitude cold and thin oxygen matter as much as cloud decks for long sessions near the Sacred Valley.
Wet-season afternoons build storm towers that often clear for brilliant post-midnight skies.
Peru · Andes · ~13.5°S · ~3400 m
Check the live Tonight score, best clear window, and next ISS pass on this page, then open a tool with coordinates prefilled.
Learn: Is tonight good for stargazing? · How to see the Milky Way