January 2020 guide to the bright planets

In January 2020, dazzling Venus lights up the early evening sky. Moderately-bright red Mars comes up before dawn. Late in the month, you might catch elusive Mercury at dusk and giant Jupiter at dawn. Ringed Saturn hides in the sun’s glare all month.

Close and far moons of 2020

The moon will swing to its farthest from Earth for 2020 on March 24, and then comes closest to Earth about 2 weeks later, on April 7.

Sun in zodiac constellations, 2020

The sun in our sky moved in front of the constellation Sagittarius on December 18, 2019. It’ll move in front of the constellation Capricornus on January 20. Click here for sun-entry dates to zodiac constellations in 2020, using boundaries for constellations set by the International Astronomical Union in the 1930s.

Star Sirius rings in New Year!

Dog Star Sirius reaches its highest point in the sky around midnight every New Year’s Eve. For this reason, it might also be called the New Year’s star.

Middle of eclipse season December 30

The annular solar eclipse on December 26, 2019, happened some 4 days before the middle of the eclipse season, which came to pass on December 30, 2019.

Thin partial eclipse with a woman and child standing on a hillside, pointing at it.

Photos of December 26 ‘ring of fire’ eclipse

The December 26, 2019, annular or ‘ring of fire’ solar eclipse was viewed across a narrow track that started at sunrise in Saudi Arabia and ended at sunset over the North Pacific Ocean.

Was the Christmas Star real?

Are there any possible astronomical explanations for the Star of Bethlehem or Christmas star?

Mirfak is Perseus’ brightest star

Mirfak isn’t as famous as Algol, its brother star in the constellation Perseus. But Mirfak is easier to find and can help guide you to Algol.

Solstice tale of two cities

December solstice sunrise comes at the same time for St. Augustine, Florida, and New York City. But St. Augustine has an hour more of daylight than New York. Here’s why.

December solstice: All you need to know

It’s getting closer. December solstice 2019 arrives on December 22 at 04:19 UTC. That’s December 21 for much of North America. High summer for the Southern Hemisphere. For the Northern Hemisphere, the return of more sunlight!