How to observe the unique comet Tsuchinshan-ATLAS this month
Look up at the night sky in October as a remarkable celestial event unfolds. Comet Tsuchinshan-ATLAS, also known as C/2023 A3, is approaching Earth and is expected to brighten significantly. Astronomers expect this comet to become visible to the naked eye and possibly match the brightness of Jupiter. The comet was first discovered in January 2023 by astronomers at the Tsuchinshan Observatory in China and has been working its way through the solar system ever since.
A rare celestial phenomenon
Comets like Tsuchinshan-ATLAS are remnants of the early solar system. As they approach the sun, they begin to lose material, forming a glowing tail visible from Earth. The comet is expected to reach its brightest point on October 9, 2024, when it will be just 70 million kilometers away from our planet. Gianluca Masi, astrophysicist and scientific director of the Virtual Telescope Project, described this event as a unique opportunity for stargazers and said it is an opportunity not to be missed.
Best viewing practices
Those hoping to catch a glimpse of the comet should look for a dark location with a clear view of the western horizon. The optimal viewing time is shortly after sunset on October 9, because the comet will be positioned so that its brightness is increased due to light scattering. It may appear blurry compared to nearby stars, so binoculars or a small telescope may be useful for a better view.
After October 9, Tsuchinshan-ATLAS will still be visible, although it may not be as bright. The upcoming supermoon on October 17 could also disrupt observations.
Other comets on the horizon
In addition to Tsuchinshan-ATLAS, another bright comet, C/2024 S1, is expected to be visible later this month. This period offers astronomy enthusiasts a rare opportunity to see several bright comets in a row. Michelle Nichols, director of public observation at the Adler Planetarium, encourages everyone to make an effort to see these spectacular sights.
Now is the time to prepare for this cosmic event, as it may be humanity’s last chance to witness this remarkable comet.