Top Astronomy Events for 2025


Catching the best sky watching events for the coming year 2025.

Comet C/2023 A3 Tsuchinshan-ATLAS captured over the McMath-Pierce Solar Telescope at Kitt Peak National Observatory, Arizona. Credit: Robert Sparks

How about that eclipse in 2024? Certainly, the Great North American Eclipse of April 8th 2024 was one for the ages, instilling the eclipse-chasing bug in many a new skywatching fan. Now, for the bad news: 2025 is a rare, totality free year, featuring only a pair of remote partial solar eclipses. The good news is, there’s lots more in store to see in the sky in 2025, with a pair of fine total lunar eclipses, Mars at its best, and lunar occultations galore. And hey, the Sun is still mighty active, and the cosmos does still owe us another fine comet.

2024: The Year in Brief

To be sure, the April eclipse was spectacular… but 2024 was almost more notable for the unpredictable. First, the Sun unleashed two epic solar storms, sending amazing aurora displays southward towards latitudes and populations of skywatchers that rarely see them. Then, Comet C/2023 A3 Tsuchinshan-ATLAS survived perihelion in late September, and went on to put on a fine show for northern hemisphere watchers at dusk in October. All of this transpired against a record number of rocket launches worldwide, as SpaceX and its competitors race to fill the sky with Starlink and its ilk.

Will artificial stars outnumber real ones in the coming generation? We’re differently witness to an evolving sky, as the clockwork gears unfold in the drama of the heavens above us.

The Rules

First up, some ground rules. We think of this list as a ‘best of the best’ for the year, distilled down to top events, with a little strangeness thrown in to make things unique. Think conjunctions closer than a degree, comets brighter than +6th magnitude, etc. as a sort of ‘101 Top Astronomy Events for the Year.’

The Top 12 Events for 2025

Such is astronomy and skywatching in 2025. First, here’s a quick subjective rundown of the dozen very best skywatching events to look forward to in the coming year:

-The peak for Solar Cycle 25 continues

-Mars at opposition in January

-Venus rules the dusk sky at the start of the year, and transitions to the dawn sky

-A once a generation Major Lunar Standstill sees the Moon swinging wide north-to-south

-Saturn’s rings are edge on as seen from our Earthly vantage point

-Comet G3 ATLAS ‘may’ break negative magnitudes in January

-Two total lunar eclipses for the year worldwide

-Lunar occultations worldwide for the stars Spica, Regulus and Antares

-A rare ‘triple year’ for lunar-stellar occultations

-The Moon meets up with Saturn and Mars multiple times in 2025

-A rare, ‘smiling emoticon’ triple conjunction involving the Moon, Regulus and Venus on September 19th

-The Moon occults sections of Messier 45 (The Pleiades) on every pass for 2025

Aurora
Aurorae light up the sky over Ottawa, Canada. Credit: Andrew Symes

The Sun, the Seasons and the Solar Cycle in 2025

We’re just coming off of the historic solar maximum in 2024 for Solar Cycle Number 25, and the wild ride is far from over. On an 11-year period from one maxima to the next, the Sun doubtless has more in store for 2025 in terms of space weather and aurora. We’re now on a long, slow downslide towards solar minimum in 2029-2030.

Earth reaches perihelion on January 4th at 0.98333 AU in 2025, and aphelion on July 3rd at 1.01664 AU from the Sun.

Seasons in 2025 start on:

March 20th (northward equinox)

June 20th (northward solstice)

September 22nd (southward equinox)

December 21st (southward solstice)

The Moon in 2025

2025 is a ‘hilly’ year for the path of the Moon, as we cross what’s known as a Major Lunar Standstill. The actual node crossing for the event occurs on January 29th. The Moon’s orbit is inclined a little over five degrees relative to the ecliptic plane. The entire orbit of our Moon is also dragged (mainly by the Sun) one revolution every 18.6-years, in what’s known as lunar nodal precession. All this means that once every 18.6 years, the Moon ‘swings wide’ in the sky, as the tilt of its orbit is applied to the Earth’s versus the ecliptic plane.

Lunar Standstill
A rare ‘Lunar Standstill’, seen down the Sistine Axis in Rome, Italy in late 2024. Credit: Gianluca Masi.

A ‘Hilly Year’

We just had the northernmost Full Moon the decade on December 15th, 2024, and we’re due for the southernmost Full Moon on June 11th.

Lunar Standstills
Major and Minor Lunar Standstills for the first half of the 21st century. Credit: Dave Dickinson

The year is also rare in that a Black Moon (in the old-timey sense as the third New Moon in an astronomical season with four) occurs on August 23rd, and the Harvest Moon nearest to the September Equinox occurs in October, on the 7th.

Moon Phases for 2025 (in Universal Time)
Closest Perigee–May 26 1:53 UT (357,309 km) Most Distant Apogee-Oct 24 15:31 UT (405,614 km)
New Moon Brown Lunation Full Moon Notes
Dec 30 – 22:28 UT (2024) 1262 Jan 13 – 22:28 UT 1st Full Moon of 2025
Jan 29 – 12:37 UT 1263 Feb 12 – 13:54 UT
Feb 28 – 00:47 UT 1264 Mar 14 – 6:56 UT Total Lunar Eclipse (Mar14)
Mar 29 – 11:00 UT 1265 Apr 13– 00:24 UT Partial Solar Eclipse (March 29)
Apr 27 – 19:33 UT 1266 May 12 – 16:58 UT
May 27 – 3:04 UT 1267 Jun 11 – 7:46 UT Closest Full Moon of the year, Southernmost Full Moon of 2025
Jun 25 – 10:34 UT 1268 Jul 10 – 20:39 UT
Jul 24 – 19:12 UT 1269 Aug 9 – 7:57 UT
Aug 23 – 6:07 UT 1271 Sep 7 – 18:11 UT Total Lunar Eclipse (Sep 7) 3rd New (Black) Moon in Season
Sep 21 -19:55 UT 1272 Oct 7 – 3:49 UT October Harvest Moon Partial Solar Eclipse (Sep 21)
Oct 21 – 12:26 UT 1273 Nov 5 -13:20 UT
Nov 20 – 6:48 UT 1274 Dec 4 – 23:15 UT Long Night’s Full Moon Most distant Moon of the year
Dec 20 – 1:44 UT 1275 Jan 3 – 10:04 UT 1st Full Moon of 2026

Eclipses in 2025

Total lunar eclipse
Totality! As seen on May 16th, 2022. Credit: Andrew Symes.

As mentioned previous, 2025 features 4 eclipses—the minimum number than can occur in a calendar year. These are 2 total lunar and 2 partial solar eclipses, bookending two eclipse seasons in 2025:

The path and visibility of the March total lunar eclipse. credit: NASA/GSFC/Fred Espenak.
Circumstances for the total lunar eclipse on the night of March 13-14th. Credit: Fred Espenak/GSFC/NASA

-A total lunar eclipse on the night of March 13-14th for the Americas;

-A partial solar eclipse for March 29th spanning the North Atlantic;

-A total lunar eclipse on the night of September 7-8th centered on Central Asia;

-A partial solar eclipse on September 21st for New Zealand and the South Pacific.

eclipse
An animation of the March 29th partial solar eclipse. Note that the umbral shadow of the Moon juuuust misses the Earth (!) Credit: NASA/GSFC/A.T. Sinclair.

The Inner Planets in 2025

Fleeting Mercury reaches greatest elongation six times in 2025 (3 in the dawn and 3 in the dusk) marking the best time to spy the elusive world:

-March 8th – Mercury is 18º east (dusk)

-April 21st – Mercury is 27º west (dawn, best for 2025)

-July 4th -Mercury is 26º east (dusk)

-August 19th – Mercury is 18º west (dawn)

-October 29th – Mercury is 24º east (dusk)

-December 8th – Mercury is 21º west (dawn)

Meanwhile, Venus is busy in 2025. The brilliant world starts off dominating the evening sky, reaching greatest elongation 47 degrees east of the Sun on January 10th and shining at magnitude -4.5. This is the best apparition of Venus since 2017. Venus then takes the plunge towards the Sun, passing less than nine degrees north of the Sun on March 21st-22nd. This is a good time to try the challenging feat of seeing Venus near inferior conjunction… just make sure that the Sun is physically blocked from view.

Venus
Venus near inferior conjunction in 2020. Credit: Shahrin Ahmad.

Venus then goes on to a fine dawn appearance for the remainder of 2025, reaching greatest elongation 46 degrees west of the Sun on June 25th.

The Outer Planets in 2025

The big ticket planetary event kicks off 2025, when Mars reaches opposition on January 16th. To be sure, this opposition is part of an unfavorable cycle as the Red Planet is currently moving away from us towards aphelion on April 16th, 2025, but noteworthy as it marks the biannual Mars observing season. At its best, Mars shines at -1.5 magnitude and presents a disk 15” across.

Mars
Mars from 2020. Credit: Andrew Symes.

Beyond opposition, Mars spends most of the rest of 2025 in the evening sky, and reaches solar conjunction on January 9th, 2026.

Jupiter in 2025

Jupiter reached opposition on December 7th, 2024, skips in 2025, and heads to opposition next on January 10th, 2026. Jupiter last performed such a bypass in 2013. Callisto (the only major moon that can ‘miss’ Jove) starts shadow-casting and passing back into Jupiter’s shadow on May 11th. This is a prelude to another bidecadal mutual eclipse season for Jupiter’s moons starting in 2026.

We have three double shadow transit seasons to watch for in 2025:

(Thanks to John Flannery and the late John O’Neill who edited the ‘Sky-High’ publication for the Irish Astronomical Society for years for calculating and passing this info on).

-February 25th (Ganymede-Europa)

-October 13th (Ganymede-Io)

-October 29th (Io-Europa)

-November 5th (Io-Europa)

-November 21st (Callisto-Io)

Also watch for a unique event, when only Callisto is visible on October 6th. Jupiter reaches solar conjunction on June 24th, transitioning from the dusk to dawn sky.

Saturn in 2025

Saturn starts off 2025 in the evening sky, and passes behind the Sun and into the dawn sky on March 12th. Saturn reaches opposition once on September 21st, marking the best time to spy the ringed world.

Tilt of Saturn
The changing tilt of Saturn’s rings. Credit: Shahrin Ahmad.

Saturn’s rings are edge on on March 23rd, 2025, providing us a twice every 29-year view of an apparently ‘ring-less’ Saturn… just think how bland the solar system would be, if Saturn always appeared thus?

Ring plane-crossing also means it’s time to see Saturn’s moons transiting across its disk. These are tougher to spot versus the Galilean moons of Jupiter, though shadow transits of 0.8” Titan are in the range of backyard telescopes. Use the IMCCE’s site to generate shadow transits for Titan in 2025.

Looking outward, Uranus reaches opposition on November 21st in the constellation Taurus, Neptune passes opposition on September 23rd in Pisces, and distant Pluto hits opposition on July 25th in Capricornus.

The Best Conjunctions and Groupings in 2025

2025 is an intriguing year for lunar-planetary meetups. First off, you have a rare chance to see all of the naked eye planets (from Mercury to Saturn) in the evening sky at once in mid-March, as Mercury briefly completes the scene.

Dawn
The sky scene looking eastward on the morning of April 25th.

The best planet-versus-planet pairing occurs on August 12th with Jupiter and Venus just 54’ apart, 36 degrees from the Sun at dawn. The best planet-versus-bright star conjunction for the year happens when Venus passes 30’ north of Regulus on September 19th, also at dawn. Incidentally, a remote region in the Siberian Arctic will actually see the 5% illuminated waning crescent Moon cover the pair simultaneously, while the rest of us will see a skewed, ‘smiley face’ emoticon grouping hanging in the dawn sky, demonstrating that perhaps the Universe does indeed have a sly sense of humor.

Venus v Regulus
Venus vs. Regulus on September 19th. Credit: Dave Dickinson

A triple conjunction grouping of this sort won’t grace the skies of our fair planet again until February 13th, 2056, when the Moon, Mars and Mercury meet up.

Dawn
Looking eastward on the morning of August 20th. Credit: Stellarium

Bright Planets vs. Clusters

Three planets that transit the Beehive Cluster (Messier 44) in 2025:

-May 4th Mars vs. M44 (83º from the Sun at dusk)

-July 2nd Mercury vs. M44 (25º from the Sun at dusk)

-August 31st Venus vs. M44 (31º from the Sun at dawn)

Saturn v Moon
The Moon occults Saturn in 2014. Credit: Paul Stewart

Planets Occulted by the Moon in 2025

The Moon occults 4 naked eye planets (all except Jupiter) a total of 7 times in 2025:

Date Planet Moon Phase Region Notes
Jan 4 Saturn +25% Europe
Jan 14 Mars +99% N. America/Africa
Feb 1 Saturn +13% Alaskan Arctic
Feb 9 Mars +91% N. Europe/Asia
Mar 1 Mercury +2% Central Pacific
Jun 30 Mars +24% S. America
Sep 19 Venus -6% NW N. America See Venus (daytime)
Mars occultation
The visibility footprint for the January 14th occultation of Mars by the Moon.

Bright Stars Occulted by the Moon in 2025

2025 is also rare in that the Moon will occult three of the four +1st magnitude stars that it can occult: Spica (11 times), Antares (12 times) and Regulus (6 times). Only Aldebaran sits this one out. Spica occultations are on their way out and headed towards the Antarctic region in 2025, while Regulus events are just sliding on to the scene to the north from the Arctic. Meanwhile, Spica occultations are still ongoing in 2025, and run out in November.

Date Star Moon Phase Region Notes
Jan 21 Spica -51% W. Africa/Atlantic
Jan 25 Antares -16% Indian Ocean
Feb 17 Spica -77% South Pacific
Feb 21 Antares -41% S. South America
Mar 16 Spica -95% E. Africa/Indian Ocean
Mar 20 Antares -67% Australia/New Zealand
Apr 13 Spica -99% S. America/S. Atlantic
Apr 16 Antares -88% S. Africa
May 10 Spica +97% South Pacific
May 14 Antares -96% S. Africa
Jun 6 Spica +83% Antarctica
Jun 10 Antares +99% Australia/New Zealand
Jul 3 Spica +60% Antarctica
Jul 7 Antares +91% S. Africa/SW Australia
Jul 26 Regulus +5% Arctic 1st of cycle
Jul 31 Spica +44% Antarctica
Aug 4 Antares +80% Antarctica/S. South America
Aug 23 Regulus +0.5% Arctic Near New
Aug 27 Spica +20% Antarctica
Aug 31 Antares +56% New Zealand/Antarctica
Sep 19 Regulus -4% Arctic
Sep 23 Spica +3% Antarctica
Sep 27 Antares +28% Antarctica
Oct 16 Regulus -22% NE North America
Oct 21 Spica +0.5% Antarctica Near New
Oct 25 Antares +15% S. South America
Nov 13 Regulus -37% N. Europe
Nov 17 Spica -7% Antarctica Final of cycle
Nov 21 Antares +2% Southern Indian Ocean Daytime
Dec 10 Regulus -64% N. North America
Dec 18 Antares -3% Southern Atlantic Daytime

Occultations of the Pleiades by the Moon in 2025

The Moon occults the Pleiades 14 times worldwide in 2025, in a series of ongoing occultations running all the way out to 2029:

Date Location favored Moon phase Notes
January 10th North America/W. Europe/NW Africa +82%
February 6th Western North America +69%
March 5th NE Asia +43%
April 1st Europe +17%
April 29th N. Pacific +4%
May 26th North America <1% Daytime, unobservable
June 23rd NE Africa -8%
July 20th North America -24%
August 16th NE Asia -45%
September 12th Europe -67%
October 10th W. North America -87%
November 6th N. Asia -98%
December 4th NW North America -99%
December 31st N. Asia +89%

Bright Comets to Watch for in 2025

Right now, there’s only one comet with real potential to reach naked eye visibility in 2025: Comet C/2024 G3 ATLAS. This comet reaches perihelion 0.094 AU from the Sun on January 13th, and ‘may’ top -1st magnitude or brighter. At magnitude +7 as of writing this in late December 2024, Comet G3 ATLAS could become a fine object low in the dawn sky for southern hemisphere observers… but only if it holds together and performs as expected.

A bright Geminid
A bright Geminid meteor over southern Arizona from 2024. Credit: Eliot Herman

Meteor Showers to Watch For in 2025

Here are prospects for annual meteor showers in 2025:

Quadrantids – Peak at a Zenithal Hourly Rate (ZHR) of 80 on January 4th versus a +27% illuminated, waxing crescent Moon.

Lyrids – Peak on April 22nd with an ZHR of 18, versus a -32% illuminated, waning crescent Moon.

Eta Aquariids – Peak on May 5th with a ZHR of 50, versus a +64% illuminated, waxing gibbous Moon.

Southern Delta Aquariids – Peak on July 31st, with a ZHR of 25, versus a +44% illuminated, waxing crescent Moon.

Perseids – Peak on August 12th, with an expected ZHR of 100, versus a -87% illuminated, waning gibbous Moon.

Orionids – Peak on October 21st with an expected ZHR of 20, versus a New Moon.

Leonids – Peak on November 17th, with a ZHR of 10, versus a -5% illuminated, thin waning crescent Moon.

Geminids – Peak on December 14th, with a ZHR of 150, versus a -23% illuminated, waning crescent Moon.

Ursids – Peak on December 22nd, with a ZHR of 10, versus a 7% illuminated, waxing crescent Moon.

My money is on the Geminids for the best expected meteor shower of 2025.

Weirdness and More

Well, we’re now officially a quarter of the way into the 21st century. For fans and users of stellar cartography, 2050.0 coordinates will now slowly start to come into vogue versus 2000.0, as we inch ever closer to mid-century. It’s a strange thought, for those of us who still remember 1950.0 coordinates on star maps (and star maps in general!). Looking out of the solar system, we’re still waiting for the reclusive (and now overdue) recurrent nova T Coronae Borealis to finally pop.

Also, the white dwarf star Sirius b is now at apastron 11.5” from its brilliant primary, making this an excellent time to cross it off of your life-list… the +4 and +6 magnitude double star 70 Ophiuchus also reaches maximum separation of 6.7” in 2025. Finally, will the defunct Soviet Kosmos 482 Venus mission reenter in 2025? Should we alert the Six Million Dollar Man to stand-by to fight the ‘Venus Death Probe?’

And a Teaser for 2026

The sky just keeps turning into 2026. Watch for mutual eclipse season for the major moons of Jupiter, as the moons pass one in front of the other. Also, the ongoing solar cycle is also still expected to be active into 2026, producing sunspots, space weather and more. And (finally!) we’ll see the return of total solar eclipses on August 12th, as the umbral shadow of the Moon crosses Greenland, Iceland and northern Spain.

Don’t miss all of these great sky-watching events and more, coming to a sky near you.

Credits: It has been a wild year, on the Earth and in the sky above. We always like to say that our sky watching almanac for the coming year is the one post that takes us six months to write, and this year’s is no exception. Lots of research goes into these, and we’ve picked the brains of lots of knowledgeable observers in the process. Thanks to John Flannery at the Irish Astronomical Society, Bob King, Robert Sparks, Andrew Symes, Paul Stewart, Eliot Herman, Guy Ottewell and everyone who contributed over the past year. Additionally, thanks go out to Universe Today Publisher Fraser Cain for hosting these looks at astronomy for the coming year, for going on over a decade now.

It’s going to be another great year for skywatching in 2025… and who knows? If the interest is out there, 2026 might see this half-a-year project grow into something bigger.



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