October 1, 2021
The Moon has changed phase thousands of times since the beginning of the cosmos, but only once did it shine on the night you arrived.
The Central Milky Way from Lagoon to Pipe
Birthday · October 1, 2021
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APOD published October 1, 2021. Credit: Gabriel Rodrigues Santos. A publication-date match, not a photo taken on your date. Independent of NASA.
Dark markings and colorful clouds inhabit this stellar landscape. The deep and expansive view spans more than 30 full moons across crowded star fields toward the center of our Milky Way Galaxy. Cataloged in the early 20th century by astronomer E. E. Barnard, the obscuring interstellar dust clouds seen toward the right include B59, B72, B77 and B78, part of the Ophiuchus molecular cloud complex a mere 450 light-years away. To the eye their combined shape suggests a pipe stem and bowl, and so the dark nebula's popular name is the Pipe Nebula. Three bright nebulae gathered on the left are stellar nurseries some 5,000 light-years distant toward the constellation Sagittarius. In the 18th century astronomer Charles Messier included two of them in his catalog of bright clusters and nebulae; M8, the largest of the triplet, and colorful M20 just above. The third prominent emission region includes NGC 6559 at the far left. Itself divided by obscuring dust lanes, M20 is also known as the Trifid. M8's popular moniker is the Lagoon Nebula.
Image credit: Gabriel Rodrigues Santos