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The full 'Wolf micromoon' rises Jan. 6. Here's how to watch.
The full 'Wolf micromoon' rises Jan. 6. Here's how to watch.
The full 'Wolf micromoon' rises Jan. 6. Here's how to watch.

Look up on Jan. 6 for a view of the first full moon of 2023: The Wolf 'micromoon.'

January's full moon will be slightly smaller than average because the moon is at the farthest point from Earth in its orbit. The moon's path around the planet is elliptical. At its nearest approach, called perigee, it is 225,291 miles (362,570 kilometers) away. At its farthest distance, called apogee, it is 251,910 miles (405,410 km) away.

Perigee and apogee don't always coincide with full moons, but when they do, they're colloquially known as supermoons and micromoons, respectively. Supermoons appear about 14.5% wider and 25% brighter in the sky than micromoons, according to the University Space Research Association (USRA). A side-by-side comparison of the two, taken from the same location with the same camera, is available on the USRA website.

The "wolf" nickname is believed to reference the fact that wolves are typically active this time of year. The names for the full moons are thought to come from a mixture of Native American, Anglo-Saxon and German month names, according to Time and Date.

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— 5 strange new facts about the moon

— Who owns the moon?

The moon will reach its fullest at 6:07 p.m. EST (11:07 p.m. UTC) on Jan. 6. Full moons happen when the sun, Earth and moon align such that the sun's rays illuminate the entire Earth-facing side of the moon. The moon sits a little above or below Earth's shadow, enabling this illumination. On the occasions when the full moon passes through part or all of Earth's shadow, it creates a lunar eclipse.

The full moon will rise just a few days after the peak of the Quadrantids meteor shower, which will occur on the night of Jan. 2 to Jan. 3. A few shooting stars may still be visible during the Wolf micromoon, however, as the Quadrantids continue through Jan. 16.

The next full moon is known as the "Snow Moon" and will occur at 1:29 p.m. EST (6:29 p.m. UTC) on Sunday, Feb. 5, 2023.

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