3I/Atlas December 2, 2025

by Andrew Barton

Equipment: Astro-Physics StarFire GTX 130mm f/6.3 (3.5"), ZWO ASI2600MM Pro

Integration: 1h 30m

I have been glued to the coverage of 3I/Atlas since it was discovered. It is only the third confirmed extrasolar body to visit our solar system. It appears to have originated from the general direction of Sagittarius, near the center of the Milky Way. Astronomers do not yet know the size of 3I/Atlas, but current estimates range from about 1,400 feet to 3.5 miles across. After waiting for 3I/Atlas…