Rare comet may be visible for only time in 160,000 years

Spotting the Comet: A Once-in-160,000-Year Event

Comet C/2024 G3 (ATLAS) might be the most exciting celestial visitor our skies will see this year. This comet, discovered by NASA’s Asteroid Terrestrial-impact Last Alert System (ATLAS), holds a special place in astronomical lore as a once-in-160,000-years event.

The Discovery

Detected in April 2024, C/2024 G3 (ATLAS) is predicted to be a dynamically new comet, meaning it will encounter the inner Solar System for the first time in thousands of years. The astronomical community is both fascinated and anxious about this encounter, given the unpredictability of comet behavior.

Visibility and Brightness

As with all comets, its visibility and brightness can be notoriously uncertain. The comet is expected to reach a bright magnitude of -2.0 by January 13, 2025, making it potentially visible to the naked eye in the daytime sky. However, it could also be much fainter than predicted, hindering observational efforts[2].

How to Spot It

For those in the Southern Hemisphere, the best viewing opportunities might occur around perihelion (January 13, 2025). During this period, skywatchers should look toward the eastern horizon before sunrise. After perihelion, try observing in the western horizon after sunset. Be warned, though: predictions on comet brightness are often unreliable, and many end up being much dimmer than anticipated[2].

Challenging Conditions

For those in the Northern Hemisphere, including areas like the UK, viewing may be challenging due to the comet’s relative proximity to the Sun. You can check with BBC Weather online to see if the skies are clear enough for a possible sighting where you are. Clear, dark nights are essential for optimal viewing conditions, so be prepared to get out under those starry skies[3].

Preparations

Comets are notorious for their unpredictable behavior, but this one promises to be a thrilling spectacle if it reaches predicted brightness levels. Binoculars with 7x or 10x magnification can enhance your comet-viewing experience, making fainter comets like C/2024 G3 (ATLAS) more manageable to observe. If it’s visible in the daytime, it will be positioned quite close to the Sun in the sky, so be sure to scan your skies carefully for any signs of this celestial wonder[3].