Eclipse Calculator – Eclipses in San Francisco, California, U.S.A.
Eclipse visible in San Francisco – Apr 21, 1940 Penumbral Lunar Eclipse
The animation shows approximately what the eclipse looks like from the night side of earth.
This is an approximate representation. The eclipse and moon will look slightly different in real life.
During this penumbral lunar eclipse, the Earth's main shadow do not cover the Moon. As the Earth's shadow (umbra) misses the Moon during a penumbral lunar eclipse, there are no other locations on Earth where the Moon appears partially or totally eclipsed during this event.
A penumbral lunar eclipse can be a bit hard to see, as the shadowed part is only a little bit fainter than the rest of the Moon.
Local times for eclipse in San Francisco on Sunday, April 21, 1940
Click on the Sun/Moon symbol in the “Looks like” column to see what the eclipse looks like during the different phases of the event.
This eclipse is in progress during moonrise or moonset, so only parts of the eclipse are visible in San Francisco.
The animation's bottom edge represents an ideal, flat horizon, which is at the same altitude as the observer.Times are local for San Francisco (PST - Pacific Standard Time).
Other eclipses visible in San Francisco
Sun & Moon Calculators for San Francisco
- Sunrise and sunset in San Francisco
- Moonrise and moonset in San Francisco
- Phases of the moon in San Francisco
Types of Eclipses
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- Moon Phase Calculator – Find moon phases for any year
- Find Sunrise and Sunset for a location
- Day and Night World Map – See which parts of the Earth are currently illuminated by the Sun