Sunday night brings a super-moon, which can be considered the year’s “first, last and only supermoon. Such a phenomenon occurs, practically speaking, when the moon is full, or when its monthly elliptical orbit brings it closest in to earth. As for the moons we can see, being closer to earth can make the full moon appear larger, by as much as 14 percent.
Even that can be harder to appreciate if observers are in a city or other spots with bright overhead lights, so it’s best to look for a viewing spot where skies are darker. As for Long Island skies overnight Sunday into Monday, conditions were expected to be mostly clear!