This month’s lunar eclipse will be a ‘super blood wolf moon.’

Overnight Sunday, Jan. 20, into Monday, Jan. 21, the full moon will move into the shadow of earth.

Lunar eclipses can only happen during full moons.

Of the two lunar eclipses that will be visible from various points on Earth this year, this one has more titles.

Super

A supermoon is the term for a full moon that looks unusually large.

The moon’s orbital path is not circular — sometimes it is closer to Earth… sometimes it is farther away. The distance varies from 220,000 miles to 250,000 miles. The moon will appear slightly larger this time because it is closer. At its closest approach, the moon appears about 14 percent larger and 30 percent brighter than when it is farthest away, NASA said.

Blood

The blood moon term refers to the red color often present in an eclipse. That is because the only sunlight striking the sun is bent by particles in Earth’s atmosphere. The longer wavelengths — reds — are the ones that make it through. They bend instead of being scattered like the bluer light, according to NASA. So, a portion of the red light from the sun makes it to the moon while very little of the rest of the spectrum does.

Wolf

Native Americans are given credit for the ‘wolf moon’ term. According to NASA, the wolf moon is the first full moon in January.

Others

The snow moon is the first full moon in February.

A harvest moon is so named because it happens in September or October and provides additional brightness in the evening, extending the number of hours during which crops might be harvested.

‘Once in a blue moon’ has nothing to do with the color of the moon. Full moons take place about once every 29.5 days. Historically, when there are four full moons in a season — about every 2.7 years — the fourth is called the blue moon. In more modern times, the second full moon of a month is known as a blue moon.

There is a fancy word for the alignment of celestial bodies, as in an eclipse — syzygy.