October 17, 2025
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The way to catch uncommon comets and meteor showers
A comet seen to the bare eye will make its closest method to Earth on October twenty first.
Astrophotographer Brennan Gilmore took this photograph of Comet Lemmon from central Virginia on October 4, 2025.
The comet, found earlier this yr, is now brilliant sufficient to be seen with the bare eye and poised to grow to be one of many high astronomical phenomena of 2025. The celestial wanderer, generally known as C/2025 A6 (Lemon), is presently within the western sky after sundown, not removed from the Large Dipper, and in a superb place to watch because the sky darkens.
Astronomers found the comet in January as a part of the Mount Lemmon expedition in Arizona and calculated that it was in a 1,350-year orbit across the solar.
Comet Lemon will make its closest method to Earth on October 21, passing inside 55 million miles (89 million kilometers) of Earth. Conveniently, today can be the day of a brand new moon, that means there will probably be no moonlight within the sky, making it simpler to watch fainter objects. Coincidentally, the Orionid meteor bathe will even peak on the evening of October twenty first, so fortunate skywatchers could possibly catch a glimpse of some capturing stars whereas gazing on the comet.
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The comet is anticipated to be at its brightest from across the similar day till early November. Will probably be closest to the Solar on November eighth (some extent generally known as perihelion).
“You most likely cannot see it with the bare eye from the town, however you need to be capable of spot it with binoculars,” says Bob King, contributing editor at Sky & Telescope. “You possibly can see the moon from the countryside when it isn’t within the sky.” [with the] bare eye. “It should be somewhat blurry, however the binocular view must be very stunning.”
Amanda Montanez. Supply: Stellarium with additions by Bob King (reference)
Even should you’re not conversant in constellations, you need to be capable of spot the comet utilizing the Large Dipper and Arcturus, the brightest star within the western sky presently of yr. The Wanderer is presently below the “deal with” of the dipper, however in late October it will likely be on the left facet of the dipper, above Arcturus. As a result of the comet is sort of low within the sky, it will likely be greatest seen simply after sundown, with the candy spot about an hour after sundown. It’s possible you’ll want binoculars to see the comet’s wispy tail, which is the results of high-velocity particles from the Solar pushing gasoline and mud away from the comet’s core.
Debra Ceravolo, an astrophotographer who pictures the skies from southern British Columbia, stated that whereas rural places could be excellent, there is not any must put individuals who cannot escape cities on the again burner. “At the least discover a darkish nook of your yard, shielded from avenue lights,” she says. “Binoculars are at all times useful.”
Skywatchers must also bear in mind that what they see with their very own eyes won’t ever come near the beautiful pictures taken by skilled astrophotographers. Sometimes, astrophotographers use mechanisms known as clock drives to compensate for the Earth’s rotation, and processing methods akin to picture stacking to make celestial objects seem brighter. Nonetheless, individuals who shoot completely with their smartphones can nonetheless get good outcomes, particularly if they will mount their smartphones on a tripod, King says. “As we speak’s smartphone cameras are able to lengthy exposures of, say, 3 to 10 seconds. That must be sufficient to seize it.”
Comets are notoriously tough to foretell, and whereas Comet Lemon is scheduled to brighten into late October, it virtually actually will not match the comets Hale-Bopp and Hyakutake, which lit up the skies within the Nineteen Nineties. Nonetheless, Ceravolo says it is effectively value a go to. “I like comets,” she says. “So each time one thing good occurs, I’ll go there.”
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