November 29, 2024
The same gravity that holds galaxies together and keeps planets in their orbits also held you to the Earth on the day you were born.
Messier 4
Birthday · November 29, 2024
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APOD published November 29, 2024. Credit: Steve Crouch. A publication-date match, not a photo taken on your date. Independent of NASA.
Messier 4 can be found west of bright red-giant star Antares, alpha star of the constellation Scorpius. M4 itself is only just visible from dark sky locations, even though the globular cluster of 100,000 stars or so is a mere 5,500 light-years away. Still, its proximity to prying telescopic eyes makes it a prime target for astronomical explorations. Recent studies have included Hubble observations of M4's pulsating cepheid variable stars, cooling white dwarf stars, and ancient, pulsar orbiting exoplanet PSR B1620-26 b. This sharp image was captured with a small telescope on planet Earth. At M4's estimated distance it spans about 50 light-years across the core of the globular star cluster.
Image credit: Steve Crouch