Astronomical summer in the Northern Hemisphere begins with the closest alignments of Mars, Venus and the 'Earth-shining' crescent moon until 2028.
The summer solstice on June 21 may be an important annual observance on Earth, but aside from the sun being its highest in the sky in the Northern Hemisphere, it's not typically a stargazing event. That changes in 2023 with the appearance in the solstice's evening twilight of Venus, Mars and a slim crescent moon in the western sky.
The following evening, Tuesday, June 20, will see a slightly brighter and higher crescent moon form a line in the sky with bright Venus and dim Mars. The moon will be almost 8% illuminated and will display vivid Da Vinci glow on its darkened limb.
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