Read the story here. Advertise at Before It's News here.
Profile image
By Universe Today (Reporter)
Contributor profile | More stories
Story Views
Last hour:
Last 24 hours:

Mars at Opposition 2022: The Full Moon Occults Mars Wednesday Night

% of readers think this story is Fact. Add your two cents.

A rare event transpires Wednesday night, as the Full Moon occults Mars near opposition.

Have you checked out Mars lately? The Red Planet currently rides high to the east at dusk, rising as the Sun sets. We call this opposition season, the biannual span when Mars passes closest to the Earth and offers observers optimal views of the planet. Mars opposition 2022 is special however, as three events converge in one night: Mars at opposition, the Moon reaches Full, and the Moon occults (passes in front of) Mars, all on the evening/morning of Wednesday/Thursday, December 7th/8th.

Celestial Dates with Destiny

You can see how the action around Mars stacks up in the first week of December:

1st- Mars passes nearest Earth (2:00 Universal Time/UT)

8th-Full Moon (4:00 UT)

8th-Mars Lunar Occultation (4:00 UT)

8th-Mars at Opposition (5:00 UT)

Note that Mars is closest to the Earth a week prior to opposition. This occurs for two reasons: while the Earth is moving towards perihelion in January (that is, we’re moving towards the Sun in December, but away from Mars), the Red Planet is doing the opposite, headed towards aphelion on May 30, 2023, just under six months after this week’s opposition. This makes up for the 900,000-odd kilometer difference as Mars is 0.55 Astronomical Units (AU, or 81.5 million kilometers) from Earth on the 1st, but sits 82.4 million kilometers from Earth at opposition.

Mars from November 21st as it nears opposition. Image credit and copyright: Damian Peach.

In fact, we’re currently trending towards a cycle of unfavorable oppositions for Mars now, which will bottom out in February 2027 when Mars only reaches an apparent diameter of 13.8” as seen from the Earth. After 2027, Mars oppositions will slowly start to become more favorable again.

No Missions to Mars

Unfortunately, this Mars launch window also marks a sad milestone: for the first time since 2009, no mission will catch the biannual pre-opposition window to head to Mars. The European Space Agency’s ExoMars Rosalind Franklin rover was set to make the trip until Russia invaded Ukraine early this year, forcing ESA to look for another launch carrier and lander. ESA still hopes to get the rover to Mars by 2030.

The occultation visibility footprint for Wednesday night’s event. Credit: Occult 4.2.

‘Standing in the Shadow’ as the Moon occults Mars

But it’s Wednesday night’s occultation of Mars by the Full Moon that makes the 2022 opposition special. Opposition and the occultation plus the Full Moon all occur within an hour of each other. This is pretty rare: the near-Full Moon hasn’t occulted a naked eye planet or bright star since July 2019 (Saturn) and won’t do so again until May 24, 2024 (Antares), This is also the last of two occultations of Mars by the Moon for 2022, The Moon will occult Mars five times in 2023, though none are as favorable as the December’s event. The December ‘Long Night’s Moon’ nearest to the southward equinox also rides high in the sky for northern hemisphere observers, another plus.

Dec 6
Tuesday, December 6th at dusk, looking eastward. Credit: Stellarium.

This is also the closest Mars opposition versus a Full Moon with a lunar occultation for the 21st century. 21st century occultations of Mars near (less than 24 hours) from Full Moon also occur on December 24, 2007, January 14, 2025, February 5, 2042, May 28, 2048, February 27, 2059, and finally on April 27th 2078, which also features a shallow penumbral lunar eclipse.

The lunar occultation ‘footprint’ for Wednesday night’s occultation spans most of North America and Europe, with only the southeast U.S. missing out. Mars is 17” across during the event, shining at magnitude -1.9. The Moon will take just over a minute to cover Mars during the occultation.

A sped up view of Wednesday night’s occultation event. Credit: Stellarium.

When to Watch

Here’s a table for select North American and European cities in the path of the occultation, with ingress/egress times. You can see an extensive list of sites and times here.

City Ingress Egress
Detroit 3:20UT/10:20PM EST 4:09UT/11:09PM EST
Dallas 2:54UT/8:54PM CST 3:28UT/9:28PM CST
Los Angeles 2:30UT/6:30PM PST 3:30UT/7:30PM PST
Seattle 2:51UT/6:51PM PST 3:50UT/7:50PM PST
London 5:00UT/5:00AM BST 6:00UT/6:00 AM BST
Helsinki 4:55UT/6:55AM EET 5:39UT/7:39 AM EET
Table credit: Dave Dickinson.

Mars will be bright enough to follow riiiiiight up to the limb of the Full Moon during the event. The occultation occurs in the early morning hours for Europe on Thursday December 8th, and late in the evening of December 7th for North America. The disappearance of Mars behind the Moon will be visible even to the unaided eye, though binoculars or a small telescope will definitely help you enjoy the view.

Looking back from Mars, you’d be treated to an even stranger view, as the Moon transits the slim crescent Earth, just scant degrees from the Sun.

Moon transit
The Moon transits the Earth Wednesday night, as seen from Mars. Credit: Starry Night.

The Moon occults Mars: Weather Prospects, Watching Live

As of writing this, weather prospects for the contiguous United States (CONUS) look to favor the central northern states and the U.S. southwest.

Wx prospects
Weather prospects across CONUS for Wednesday night’s occultation. Credit: NOAA.

Clouded out or simply live outside of the occultation footprint? Astronomer Gianluca Masi has you covered, with a live webcast as the Moon occults Mars, starting at 4:00 UT/11:00 PM EST Wednesday night.

Mars near the crescent Moon from 2020. Image credit and copyright: Efrain Morales Rivera.

The Moon Occults Mars: Spotting a ‘Daytime’ Red Planet

Finally… ever seen Mars in the daytime? It’s certainly possible near opposition… and the nearby Full Moon offers an excellent guide to complete this unusual feat of visual athletics. In North America, I’d start looking for Mars near the Moon just before local sunset, while in Europe, your best bet is to follow Mars near the Moon low to the West, after local sunrise.

Good luck, clear skies, and don’t miss this week’s unique, triple play dance of the Moon and Mars.

The post Mars at Opposition 2022: The Full Moon Occults Mars Wednesday Night appeared first on Universe Today.


Before It’s News® is a community of individuals who report on what’s going on around them, from all around the world.

Anyone can join.
Anyone can contribute.
Anyone can become informed about their world.

"United We Stand" Click Here To Create Your Personal Citizen Journalist Account Today, Be Sure To Invite Your Friends.

Please Help Support BeforeitsNews by trying our Natural Health Products below!

Order by Phone at 888-809-8385 or online at M - F 9am to 5pm EST

Order by Phone at 866-388-7003 or online at M - F 9am to 5pm EST

Order by Phone at 866-388-7003 or online at M - F 9am to 5pm EST

Humic & Fulvic Trace Minerals Complex - Nature's most important supplement! Vivid Dreams again!

HNEX HydroNano EXtracellular Water - Improve immune system health and reduce inflammation.

Ultimate Clinical Potency Curcumin - Natural pain relief, reduce inflammation and so much more.

MitoCopper - Bioavailable Copper destroys pathogens and gives you more energy. (See Blood Video)

Oxy Powder - Natural Colon Cleanser!  Cleans out toxic buildup with oxygen!

Nascent Iodine - Promotes detoxification, mental focus and thyroid health.

Smart Meter Cover -  Reduces Smart Meter radiation by 96%! (See Video).

Report abuse


    Your Comments
    Question   Razz  Sad   Evil  Exclaim  Smile  Redface  Biggrin  Surprised  Eek   Confused   Cool  LOL   Mad   Twisted  Rolleyes   Wink  Idea  Arrow  Neutral  Cry   Mr. Green

    Load more ...




    Email this story
    Email this story

    If you really want to ban this commenter, please write down the reason:

    If you really want to disable all recommended stories, click on OK button. After that, you will be redirect to your options page.