When the moon is full, and within hours on either side of that phase, there are no shadows cast anywhere. All of the variations we see are due to changes in the moon’s geology. This image by Michael nicely shows the numerous rays systems emanating from the younger craters, the various types of dark basalt…
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A Close-up view of Mare Crisium when the terminator will be directly to its west on Wednesday, June 21, 2023 at 10 pm EDT. (Starry Night Pro) Hello, Summer Stargazers! Here are your Astronomy Skylights for the week of June 18th, 2023 by Chris Vaughan. Feel free to pass this along to your friends and…
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This terrific image by Amir H. Abolfath shows a deep exposure of the sky surrounding the bright reddish star Antares, the heart of Scorpius, which shines over the southern horizon on late June evenings. Antares is within the bright orange region at lower left. To its right is the enormous globular star cluster Messier 4.…
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This image of Messier 13 in Hercules, the father of all globular star clusters visible from the Northern Hemisphere, was captured by Martin Pugh. Hundreds of thousands of stars, 25,000 light-years away from the sun, are arranged in a sphere by their mutual gravitational attraction. M13 is visible as a faint fuzzy patch to the…
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This image of the Messier 13 globular star cluster in Hercules was taken by Martin Pugh. The cluster is composed of thousands of old, blue and yellow stars collected into a spherical ball orbiting our galaxy’s core. It’s located about 25,000 light-years from our sun. This image spans about 30 by 40 arc-minutes, slightly larger…
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