Post-Perihelion Data on 3I/ATLAS: New Measurements and Implications
Lead New astrometric and photometric reports from the Minor Planet Center and NASA’s Jet Propulsion Laboratory covering October 31–November 4, 2025 update measurements for interstellar object 3I/ATLAS after its October 29, 2025 perihelion passage. Compared with early-October data, the object brightened by roughly a factor of five in the Green band (centered at 0.464 μm) … Read more