Of course, the moon doesn't actually change size, but it appears to be larger because of how its orbit lines up with the Earth and sun.
The next time anyone will see a supermoon will be in January 2018 when two will occur in the same month, one on January first and the other on January 31st.
Last night was your only shot to see the first (and last) supermoon of 2017, when the moon appeared 14 percent larger and 30 percent brighter than usual.
Sunday night at its perigee, the moon will be nearly 50,000 kilometers closer than at its apogee, or farthest point. You obviously can't tell from just watching it, but the moon orbits the Earth in a slightly oval-shaped path.
Here's how the moon appeared all over the world.
Even as stargazers in the city were looking forward to witnessing yesterday's supermoon, which was also the last full moon of the year, many were left disappointed as the moderately cloudy sky played spoilsport.
Below, see scenes of the beaming supermoon over some of Washington's best-known landmarks and elsewhere from Capital Weather Gang's social networks ...
Regular observers of the full moon may notice the difference between a regular full moon and a supermoon, but sometimes it can be hard to tell the difference.
The biggest and brightest supermoon in 70 years had Aucklanders in awe. Icerink opened for skating at full moon.
This optical illusion also occurs when watching the supermoon immediately after sunset (or before sunrise).