See it! Last night’s lunar eclipse

It was the last total eclipse of the moon until May, 2021. The EarthSky community captured it. A selection of images here. See more at EarthSky Community Photos!

How to watch a total eclipse of the moon

Are you planning on watching the January 20-21 total eclipse of the moon? Here are some tips.

Close and far moons in 2019

This year’s farthest apogee (moon’s farthest monthly point) comes on February 5, 2019, and the closest perigee (moon’s closest monthly point) occurs some 2 weeks later, on February 19, 2019.

Why does moon in total eclipse look red?

If Earth didn’t have an atmosphere, the moon would be dark – perhaps even invisible – when entirely eclipsed within Earth’s shadow.

Why no eclipse every full and new moon?

In 2019, there are 13 new moons and 12 full moons, but only 5 eclipses – 3 solar and 2 lunar.

Will star Betelgeuse explode?

Yes, it will. The star Betelgeuse will run out of fuel, collapse under its own weight, and then rebound in a spectacular supernova explosion. Someday … but probably not soon.

Why is Mars sometimes bright and sometimes faint?

Why was Mars brighter in our sky in 2018 than since 2003? And why is it so much fainter now? What about the rest of this year? Will Mars brighten again in 2019?

What’s a Blood Moon?

The upcoming total lunar eclipse on the night of January 20-21 is being called a Blood Moon eclipse. Why? Here’s the reason.

What is the zodiac?

Maybe you associate the word ‘zodiac’ with astrology, but it has an honored place in astronomy, too. It’s defined by the annual path of the sun across our sky.

Sun in zodiac constellations, 2019

Sun-entry dates to zodiac constellations in 2019, using boundaries for constellations set by the International Astronomical Union in the 1930s.

Lengths of lunar months in 2019

The longest lunar month in 2019 starts with the new moon on January 6, and concludes with the new moon on February 4. Its duration will be 29 days 19 hours and 35 minutes.

Dates of solar and lunar eclipses in 2019

Dates of all solar and lunar eclipses this year. Is there one you can see?

Top 7 tips for safe solar eclipse viewing

Safe – and unsafe – solar eclipse viewing methods. Order your eclipse glasses now!

Are December’s solstice and January’s perihelion related?

December solstice 2018 was December 21. Earth was closest to the sun for 2019 on January 2-3. Coincidence?

The moon Venus rising over Whitehaven NW England on January 2, 2019. Photo by Adrian Strand.

See it! Moon and Venus at sunrise

Not to be missed! A beautiful combo to ring in the new year. Photos here from the EarthSky community.

Amazing photo of a meteor streaking right in front of Venus

EarthSky’s 2019 meteor shower guide

All you need to know about major meteor showers in 2019.

January guide to the bright planets

In January 2019, the 2 bright planets up before the sun are Venus (brighter) and Jupiter! Mars is the sole bright evening planet. Mercury fades from view as a morning planet in early January. Saturn becomes visible before sunup near the month’s end.

Dark skies for 2019’s Quadrantid meteors

2019’s first major meteor shower is the Quadrantid shower. Best time to watch is probably late night January 3 until dawn January 4. Northerly latitudes are favored. No moon this year!

Past-and-future Earths ring in New Year

Astronomer Guy Ottewell has developed a novel way of picturing ourselves riding on Earth, orbiting the sun. See those past-and-future Earths as we look backward at the old year – and forward into the new – here.

See brightest star Sirius at midnight on New Year’s Eve

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.