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2024-08-09 13:28:15

Random Astronomy Pictures OTD on Nostr: APOD from 2023-01-30 Globular Star Cluster NGC 6355 from #Hubble Once abundant, less ...

APOD from 2023-01-30

Globular Star Cluster NGC 6355 from #Hubble

Once abundant, less than 200 ancient globular clusters remain in the Milky Way, many lost to gravitational encounters. Hubble's image of 13-billion-year-old NGC 6355 reveals its dense, blue-star-lit core. Most other stars are background objects. Conditions no longer favor new cluster formation.

HD image at https://apod.nasa.gov/apod/ap230130.html

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