How to See Comet C/2025 R3 (PanSTARRS) in the Predawn Sky

Comet C/2025 R3 (PanSTARRS) is currently brightening and may become visible to the naked eye in the predawn sky after April 13, 2026, as it makes a close approach to the sun.

The celestial event is drawing attention from comet hunters as the object approaches its closest points to both Earth and the sun.

Visibility and Brightness

During observations in early April 2026, Comet PanSTARRS was recorded at approximately magnitude 6. This level of brightness is considered the threshold for naked-eye visibility, though it typically requires a very dark sky.

Light-curve data from the Comet Observation database suggests the comet could brighten to approximately magnitude 4 in the weeks following April 8, 2026. Such an increase would make the comet significantly more likely to be seen without the aid of telescopes or binoculars.

Despite these projections, astronomers caution that comet brightness is highly unpredictable.

Current Position and Tracking

Comet C/2025 R3 (PanSTARRS) is currently located in the constellation of Pegasus.

Real-time tracking data indicates the comet is 150,102,733.8 kilometers from Earth, with a current Right Ascension of 23h 00m.

The object is expected to peak in late April 2026.

Comparison with Comet C/2026 A1

The anticipation for Comet PanSTARRS follows the loss of another celestial object, Comet C/2026 A1 (MAPS).

Comet C/2026 A1 (MAPS) was vaporized after it flew within 100,700 miles, or 162,000 kilometers, of the sun. This event prevented skywatchers from observing the comet at its maximum brightness.