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12 January 2026
PanSTARRS: A Rare Treat for Night Sky Enthusiasts
Some celestial events truly come only once in a lifetime. This April, skywatchers will have a rare chance to observe the PanSTARRS comet as it makes a close pass by Earth. Classified as a long-period comet, it is believed to visit our region of space no more than once every 200 years—and possibly far less often. Until now, only professional astronomers could track it. Soon, it may become visible to a much wider audience.
For many observers, this could be the only opportunity to see such an object firsthand.
A Brief History of an Unusual Comet
The story of this comet began on September 8, 2025, when astronomers detected a new object in telescope images. It was officially designated C/2025 R3 and later named PanSTARRS, after the 1.8-meter telescope system that discovered it at the summit of Hawaii’s Haleakalā volcano.
At the time, the comet was little more than a faint point of light. Now, after months of observation and analysis, astronomers are confident it will soon offer a rare spectacle in the night sky.
Comet fact:
It follows a retrograde orbit inclined at about 125 degrees relative to the plane of the planets’ orbits. It likely originates from the Oort Cloud and is a remnant from the early Solar System.
It follows a retrograde orbit inclined at about 125 degrees relative to the plane of the planets’ orbits. It likely originates from the Oort Cloud and is a remnant from the early Solar System.
When Will the PanSTARRS Comet Be Visible?
On April 20, the comet will reach perihelion—the point in its orbit closest to the Sun—at a distance of about 47.4 million miles (76.3 million kilometers). That moment matters scientifically, but for observers on Earth, the key date comes a few days later.
April 27 is expected to mark the comet’s closest approach to Earth, at just over 43.5 million miles. That alignment significantly improves viewing conditions, making late April the best window for observation.
Will the Comet Be Visible Without a Telescope?
At this stage, astronomers remain cautious. Current forecasts suggest that binoculars or a small telescope may be required, especially under light-polluted skies. However, there is still room for optimism.
Some researchers believe the comet could brighten enough to rival the most prominent stars in the constellation Cassiopeia. If that happens, it may become visible to the naked eye under dark, clear conditions.
How to Prepare for Viewing in April
Regardless of how bright the comet ultimately becomes, a few simple steps can greatly improve your chances of seeing it clearly:
- Move away from city lights and streetlamps.
- Arrive 20–30 minutes early to allow your eyes to adapt to darkness.
- Bring binoculars or a small telescope if available.
- Dress warmly and consider a reclining chair for comfort.
The comet will pass between Earth and the Sun, a geometry that can cause dust in its tail to reflect sunlight toward us. This effect may briefly enhance its brightness and visibility.
Even beyond this event, these preparation tips will remain useful—interesting astronomical phenomena are expected to appear regularly throughout 2026.
Read this article in Polish: Nadciąga niezwykle rzadka kometa. Kiedy i jak zobaczyć PanSTARRS?
