A comet that completes an 80,000-year orbit around the sun is expected to provide an impressive sight for skywatchers across the country, including in California. Known as C/2023 A3 Tsuchinshan-ATLAS, this comet was initially classified as an asteroid but is now considered a potential highlight of the century due to its anticipated brightness.
NASA has indicated that the comet will be closest to Earth this weekend. It is believed to have originated from the Oort Cloud, a vast spherical region of icy debris that encircles our solar system, extending far beyond Pluto.
When will the comet be visible?
According to Space.com, the comet’s optimal viewing period will occur over two weeks from October 12 to October 26. During this time, it will gradually ascend in the night sky but will become more challenging to view with the naked eye. It is expected to begin fading either the week of Halloween or just prior, depending on its brightness, as reported by NPR.
Following this period, a telescope will be necessary for observations. While the comet may be positioned higher in the sky, it will also be dimmer, and moonlight could hinder visibility.
How can you spot comet C/2023 A3 Tsuchinshan-ATLAS?
To catch a glimpse of the comet, plan to do your stargazing after sunset. This Saturday, the comet will be visible close to the horizon about 45 minutes post-sunset and will set approximately 90 minutes later, according to Space.com. For the best experience, find a dark location away from city lights, and consider bringing binoculars to enhance your view.