A total solar eclipse occurred at the Moon's descending node of orbit on Saturday, November 12, 1966,[1] with a magnitude of 1.0234.

A total solar eclipse occurs when the Moon's apparent diameter is larger than the Sun's, blocking all direct sunlight, turning day into darkness.

Totality occurs in a narrow path across Earth's surface, with the partial solar eclipse visible over a surrounding region thousands of kilometres wide.

Occurring about 2.25 days after perigee (on November 10, 1966, at 8:40 UTC), the Moon's apparent diameter was larger.

The NASA Gemini XII mission observed this total eclipse from space: The Canary Island controller greeted the crew in the morning with the news that there would be a second maneuver - 5 meters forward - to line the vehicles up properly.

[3] The 28 October 1966 launch of the U.S. Air Force's Orbiting Vehicle 3-2 (OV3-2) was timed such that it could observe ambient charged particle variations before, during, and after the eclipse.

Their appearance and longitude are irregular due to a lack of synchronization with the anomalistic month (period of perigee).