Skywatchers across parts of the globe were treated to a rare celestial alignment Thursday evening as the waxing crescent moon passed in front of the planet Mercury, an event known as an occultation. The phenomenon was visible in some US cities, although others experienced a close approach of the two bodies.
The occultation, where the moon appears to cover up a star or planet, occurred as Mercury reached its greatest eastern elongation – the point at which it appears farthest from the sun in the sky. This positioning makes Mercury more easily visible in the pre-dawn sky, enhancing the opportunity to witness the event. According to reports, the conjunction was visible over West Michigan, adding to the spectacle for observers in that region.
Beyond the Mercury-moon alignment, the pre-dawn sky also featured Venus and Jupiter, creating a striking display for those awake before sunrise. The BBC Sky at Night Magazine reported that the next two mornings will continue to offer views of the crescent Moon alongside Venus, Jupiter, and Mercury.
While the occultation itself was a relatively brief event, the close approach between the moon and Mercury provided a beautiful sight for many. The Daily Galaxy highlighted the rarity of such an occurrence, emphasizing its appeal to astronomy enthusiasts. Observations suggest that Mercury is currently fading in brightness as it moves further from its peak visibility following greatest eastern elongation.
Looking ahead to February 21, the waxing crescent moon will continue to be a prominent feature of the pre-dawn sky, though Mercury’s visibility will diminish, while Jupiter will dominate the view, according to When the Curves Line Up.
