Random Astronomy Pictures OTD on Nostr: APOD from 2014-10-17 Messier 6 and #Comet Siding Spring Comet Siding Spring appears ...
APOD from 2014-10-17
Messier 6 and #Comet Siding Spring
Comet Siding Spring appears near Messier 6, but is actually 2,000 light-years away. On Oct 19th, it'll pass Mars at just 139,500 km—closer than any comet to Earth. Spacecraft and rovers on Mars will observe the encounter and potential atmospheric interactions.
HD image at
https://apod.nasa.gov/apod/ap141017.html 
Published at
2025-02-15 19:28:15Event JSON
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