The icy solar system comet C/2024 E1 (Wierzchos) is set to make its closest pass of Earth tomorrow (Feb. 17), an event known to astronomers as perigee. But your ability to see the ancient wanderer will depend entirely on your location — and equipment.
Comet Wierzchos’ flyby of Earth will occur on Feb. 17, when the icy body will glide 94 million miles (151 million kilometers) from our Blue Marble — about the same as the distance between Earth and the sun. The comet will pose no threat to our planet.
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Will comet C/2024 E1 (Wierzchos) be visible?
Comet Wierzchos currently has a brightness, or magnitude, of about +8.2, placing it beyond the reach of the naked eye. For context, the unaided eye can spot objects with a brightness of +6.5 from a dark sky location. The lower the number, the brighter the object.
If the comet were in a favorable position, stargazers may have been able to spot it as a hazy patch of light through a pair of binoculars, or a backyard telescope. Sadly, comet Wierzchos will be travelling through the southern constellation of Grus on Feb. 17 and will appear less than 20 degrees — the width of two stacked fists at arm’s length — above the southwestern horizon at sunset for viewers in the U.S., before setting swiftly out of view.
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Each subsequent night will see the comet positioned slightly higher above the horizon at sundown. By early March, it will have passed into the faint constellation Eridanus — the “heavenly river” — and will have reached a more favorable altitude in the post-sunset sky. By then, its brightness will likely have dimmed beyond +8 as it races ever farther from the sun, according to the Comet Observation Database (COBS) run by the Crni Vrh Observatory in Slovenia, which would still make it bright enough to be a viable telescopic target.
Stargazers looking to upgrade their gear should read our picks of the best telescopes and binoculars for exploring the night sky, while photographers should read our guide to imaging wandering comets, along with our roundups of the top cameras and lenses for astrophotography.