The sun entered the constellation Sagittarius on December 18, 2020. It'll cross into the constellation Capricornus on January 19, 2021. Look here for dates of the sun's entry into the zodiacal constellations for 2021.

Bruce McClure

December 28, 2020

Sun’s entry into zodiac signs, 2021

Every year, at the December solstice, the sun enters the sign Capricorn. One month later, on January 19, 2021, the sun will enter the sign Aquarius. Look here for the dates for the sun's entry into each sign of the zodiac for the year 2021.

Bruce McClure

December 28, 2020

Moon passes in front of Taurus the Bull

These next three nights - December 26, 27 and 28, 2020 - the bright waxing gibbous moon shines in front of the constellation Taurus the Bull.

Bruce McClure

December 26, 2020

Moon, Mars, Uranus December 22 to 24

Uranus likely won't be visible to the eye alone. But you'll easily see red Mars near the moon on December 22, 23 and 24, 2020. Mars isn't exactly blazing now. But it's bright, and very red, still a stunning sight, high in the sky at nightfall.

Bruce McClure

December 22, 2020

All you need to know: 2020’s great conjunction of Jupiter and Saturn

Jupiter and Saturn at conjunction are only 0.1 degree apart. Don't miss them! Info, charts, photos here.

Deborah Byrd

Bruce McClure

December 21, 2020

Solstice sun at southernmost point

The December solstice happens at 10:02 Coordinated Universal Time (UTC) on December 21, 2020. That time - the moment of solstice - marks the sun's southernmost point for this year.

Bruce McClure

December 21, 2020

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.

Bruce McClure

December 19, 2020

Bruce McClure

Bruce McClure served as lead writer for EarthSky's popular Tonight pages from 2004 to 2021, when he opted for a much-deserved retirement. You can still find many articles at EarthSky.org that were originally written by Bruce, and which the EarthSky editors still update regularly. Bruce is a sundial aficionado, whose love for the heavens has taken him to Lake Titicaca in Bolivia and sailing in the North Atlantic, where he earned his celestial navigation certificate through the School of Ocean Sailing and Navigation. He also wrote and hosted public astronomy programs and planetarium programs in and around his home in upstate New York. Bruce he loves cycles of all kinds! You can still find many articles at EarthSky with Bruce's name on them, exploring the various, intricate cycles of the sky.