Astronomy EssentialsTonight

Visible planets and night sky guide for September

Watch for the moon and Jupiter


Join EarthSky’s Marcy Curran for your skywatching best bets for this week. Don’t miss the lovely waning crescent moon near the bright planet Jupiter on the morning of September 9. It’ll be a beautiful sight before dawn. See what’s in store in the night sky this week. Watch here or on YouTube.

2 positions of the thin crescent moon with Jupiter between them, all along the steep ecliptic line.
The moon is now waning, rising in the east only shortly before sunrise. New moon – when the moon passes between the Earth and sun – will fall at 3:27 UTC on September 11. Between now and new moon, the waning crescent will sweep past Jupiter in the eastern, predawn sky. Jupiter is easy to spot. It’s the brightest thing up there before sunrise. Watch for the moon and Jupiter as dawn’s light begins to glow. Why do we see Jupiter in this part of our sky? This video with Will Triggs explains more. Chart via EarthSky.

Our charts are mostly set for mid-latitudes in the Northern Hemisphere. To see a precise view – and time – from your location, try Stellarium Online.

Will Triggs explains: Why Jupiter has returned


If you go outside and look just as dawn is breaking, you should be able to see bright Jupiter near the sunrise point. In this video, EarthSky’s Will Triggs explains why Jupiter is returning now and what to expect from our sky’s 2nd-brightest planet (after Venus) in the months ahead. Watch in the player above or on YouTube.

All-sky view of morning planets

Round sky chart showing 3 labeled dots along a curved green line that runs across the chart.
As seen from all of Earth, the early September morning sky features 3 bright planets: Saturn, Mars and Jupiter. Note that these planets lie along the ecliptic, or the path the sun travels in the daytime (the green line on our chart). From the Northern Hemisphere, this line will cross your southern sky. From the Southern Hemisphere, it’ll cross your northern sky. Chart via EarthSky.

The big picture: September’s 5 best sky sights


September 2026 has an especially beautiful night sky! In this livestream with host Deborah Byrd, we’ll look at 5 things you won’t want to miss. So join us! Watch in the player above, or on YouTube.

At this time of year, watch for the zodiacal light

Two fuzzy bands of light shining up from horizon into the starry sky, 1 the Milky Way and 1 the zodiacal light.
View at EarthSky Community Photos. | Michael Flynn in Pine Mountain Club, California, took this image on September 26, 2022. Thank you, Michael! The zodiacal light might be visible before morning twilight for Northern Hemisphere observers in dark skies around the September equinox. Southern Hemisphere observers? Look for it as darkness falls.

September 11: New moon

Image of the sun taken by the CCOR-1 coronagraph showing the new moon on the day of the total solar eclipse.
NOAA’s CCOR-1 coronagraph aboard the GOES-19 spacecraft spotted the moon drifting through its field of view, on its way to the August 12, 2026, total solar eclipse. CCOR-1 blocks the sun’s blinding face with an occulting disk so it can watch the faint outer corona for coronal mass ejections. The moment of new moon will fall at 3:27 UTC on September 11, 2026. That’s 10:27 p.m. Central Daylight Time on September 10 in the Americas. And it’s 3:27 p.m. New Zealand Standard Time on September 11. New moons rise and set with the sun. Nights around the new moon offer the darkest skies. See EarthSky’s best places to stargaze. Images via NOAA/GOES.

Want more? Here are 4 keys to understanding the moon’s phases.

September 13 and 14 evenings: Moon visits Venus

A crescent shape, the moon, moves past a starred dot, Venus. They are above a wavy line, the horizon.
Here’s another don’t-miss view involving a crescent moon and a super-bright planet. Shortly after sunset on September 13 and 14, the thin waxing moon will sweep past brilliant Venus. And Venus is at its greatest brilliancy this week! Be sure to step outside for this sweet sky scene. The farther south you are on Earth’s globe, the better. The moon will occult, or pass in front of, Venus – in daylight for most possible observing locations – at 11 UTC on September 14. Few people (or nobody) will see the occultation. But many will see the moon exceptionally near Venus in the evening sky. The Southern Hemisphere has the best view! Chart via EarthSky.

Around September 15: Venus brightest and near moon

A thin blue crescent pointing upward.
View at EarthSky Community Photos. | Venus will be at its greatest illuminated extent, aka its greatest brilliancy, on and around September 18, 2026. Then it’ll be shining in your evening sky at magnitude -4.8. That’s super bright! Our friend Eliot Herman of Tucson, Arizona contributed this photo in 2025, at that year’s greatest brilliancy of Venus, to show why it’s happening. That is, Venus is now at that magical place in its orbit around the sun where it’s about to go between the Earth and sun. That inferior conjunction of Venus will happen on October 23-24, 2026. So, right now, it’s relatively near Earth, and its disk appears large through telescopes. Meanwhile, we’re also still seeing a fairly large fraction of its day side. It’s that combination – relative nearness and relatively big crescent – that makes Venus brightest in our sky! No matter where you are on Earth, watch for Venus as the blazing object in the west after sunset.
A crescent shape, the moon, lies below a starred dot, Venus, and a dot, Antares. They all are above a wavy line, the horizon.
Shortly after sunset on September 15, the young moon will hang between blazing Venus – at its brightest for this evening apparition around now – and the bright red star Antares, Heart of Scorpius the Scorpion. Chart via EarthSky.

Read more: Massive ruby red Antares is the Scorpion’s Heart

Our charts are mostly set for mid-latitudes in the Northern Hemisphere. To see a precise view – and time – from your location, try Stellarium Online.

September 16 and 17 evenings: Moon near Antares

A crescent shape, the moon, first lies to the lower left of a starred dot, Antares, and then to the upper left of that starred dot. They all are above a wavy line, the southwestern horizon.
On the evenings of September 16 and 17, the waxing crescent moon will visit Antares, the brightest star in Scorpius the Scorpion. Chart via EarthSky.

September 18: 1st quarter moon

First quarter moon against a dark sky.
View at EarthSky Community Photos. | Amol Gaikaiwari took this picture on May 23, 2026, in India and wrote: “The moon was in its first quarter phase. It was roughly 51% illuminated, with half of the lunar disk brightly lit against the night sky.” Thank you, Amol! This month’s moment of 1st quarter moon will fall at 20:44 UTC on September 18, 2026. That’s 3:44 p.m. Central Daylight Time in the Americas. And it’s 8:44 a.m. New Zealand Standard Time on September 19. A 1st quarter moon rises around noon your local time and sets around midnight. Watch for a 1st quarter moon high in the sky at sundown.

Want more? Here are 4 keys to understanding the moon’s phases.

September 18 and 19 evenings: Moon near Teapot

A hemisphere, the moon, lies right of eight small dots, the Teapot stars of Sagittarius. On the following evening, the hemisphere lies with the Teapot shape that the eight dots form. They are all above the wavy line of the horizon.
On the evening of September 18, the 1st quarter moon will lie low in the south near the direction of the center of the Milky Way. It’ll be near the spout of the Teapot asterism of Sagittarius the Archer. Then, on the following evening, the waxing gibbous moon will float among the stars of the Teapot. They’ll set around the middle of the night. Chart via EarthSky.

Read more: Teapot of Sagittarius points to Milky Way center

Late September evening planets: Northern Hemisphere view

Sphere chart showing a starred dot, Venus, on the chart's right edge. It is above a wavy line, the southwestern horizon. A small dot, Mercury, lies even closer to the wavy line of the western edge.
As viewed from the Northern Hemisphere, the late September evening sky features 2 bright planets: Venus and Mercury hugging the western horizon. Venus recently reached its greatest brilliancy in the evening sky and Mercury will be at its greatest distance from the sun on October 12. Note that these planets lie along the path the sun travels in the daytime (the green line on our chart). Chart via EarthSky.

September 23: September equinox

Four black and white images of half-Earth from space, 2 upright and 2 tilted.
These are satellite views of Earth on the solstices and equinoxes. The September equinox – aka the autumnal equinox – marks the sun’s crossing above Earth’s equator, moving from north to south. Earth’s tilt on its axis is what causes this southward shift of the sun’s path across our sky at this time of year. Earth’s tilt is now bringing fall and winter to the Northern Hemisphere. At the same time, the September equinox marks the beginning of spring – and a shift toward summer – in the Southern Hemisphere. The sun crosses the celestial equator – a line directly above Earth’s equator – at 0:05 UTC on September 23, 2026 (7:05 p.m. CDT on September 22). And it’s 12:05 p.m. New Zealand Standard Time on September 23. Read more about this image. Images via NASA Earth Observatory.

Full Harvest Moon September 26

A disk, the full moon, is above a dot, Saturn. They are all above a wavy line, the southeastern horizon.
The bright full Harvest Moon will float near Saturn in the eastern sky after sunset on September 26. If you don’t spot Saturn right away, try to block out the light of the full moon with your finger. Chart via EarthSky.

Our charts are mostly set for mid-latitudes in the Northern Hemisphere. To see a precise view – and time – from your location, try Stellarium Online.

September 28 evening: Moon near Pleiades

A fat hemisphere, the moon, is to the upper right of five small dots, the Pleiades star cluster. They are all above a wavy line, the eastern horizon.
The bright waning gibbous moon will float near the Pleiades star cluster on the evening of September 28. Chart via EarthSky.

September 29 and 30 evenings: Moon near Pleiades

A fat hemisphere, the moon, passes five small dots, the Pleiades, on September 29 and 30. They are above another dot, the star Aldebaran, which in turn is above the wavy line of the horizon.
Late on the evenings of September 29 and 30, the waning gibbous moon will visit the Pleiades star cluster. The fiery eye of Taurus the Bull, Aldebaran, will shine nearby. Chart via EarthSky.

September evening planets

There are three charts showing the movement of a starred dot, Venus, during September. In the first chart, a starred dot, Venus, lies below a dot, the star Spica. In the second chart, the starred dot of Venus has moved left of the dot of Spica, and a crescent shape, the moon, is left of Venus. In the third chart, the starred dot of Venus lies immediately above a wavy line, the horizon.
This chart is for the Northern Hemisphere. Brilliant Venus will hang low in the west shortly after sunset in early September. On September 1 and 2, it will lie in the bright twilight close to Spica, the brightest star in Virgo the Maiden. They’ll be roughly 2 full-moon widths apart. By the middle of the month, Venus has moved away from Spica. On September 14, the crescent moon will be near Venus. And around September 18, Venus will be at its greatest brilliancy. By the end of the month, Venus will be quite low in the bright western twilight. Chart via EarthSky.
Three charts show Venus, Mercury, Spica and the moon above the western horizon during September in the Southern Hemisphere.
This chart is for the Southern Hemisphere. Brilliant Venus will hang low in the west shortly after sunset in mid-September. And elusive Mercury will lie low on the horizon, with the bright star Spica between them. The moon will also float between them on September 12. Around September 18, Venus will be lower in the sky, and Mercury will be easier to spot. Venus will also be at its greatest brilliancy. Then, around September 25, Mercury will lie close to Spica. Chart via EarthSky.
A dot, Saturn, is above a wavy line, the horizon.
Saturn will lie in the east in the evening hours of September. It is in a lonely part of the sky as there are no bright stars near it. Chart via EarthSky.

September morning planets

There are three charts showing the movement of a dot, Jupiter, during September. In the first chart, a dot, Jupiter, lies above a wavy line, the horizon. In the second chart, a smaller dot, Regulus, lies below the first dot. As September progresses, those two dots move closer together while climbing higher above the wavy line, the horizon.
Bright Jupiter will lie in the east shortly before sunrise in early September. By mid-month, it will be joined by Regulus, the brightest star in Leo the Lion. At the end of September, their gap will narrow as they climb higher above the eastern horizon. Chart via EarthSky.
There are three charts showing the movement of a dot, Mars, during September. In the first chart, the dot of Mars lies right of two dots, the stars Castor and Pollux. In the second chart, the dot of Mars lies closer to the dot of Pollux. In the final chart, the dot of Mars lies in a straight line with the two dots of Castor and Pollux.
Red Mars will float near the stars Castor and Pollux high in the eastern sky shortly before sunrise in early September. By mid-month, Mars will move close to Pollux. Then, on September 25, Mars will line up with Castor and Pollux. Chart via EarthSky.

September stars

If you’re out stargazing on any September evening, look for these stars and constellations overhead in the evening sky.

Sky chart showing Cygnus looking like a sideways cross with 2 stars labeled.
If you have a dark sky, it’s easy to observe the edgewise view into our own galaxy – our Milky Way – spanning across the heavens. Need help finding it? Look toward the constellation Cygnus the Swan. You might know this constellation by its asterism, the Northern Cross. The Swan swims along the Milky Way. Its brightest star is Deneb, the Swan’s Tail. Additionally, the constellation Cygnus contains one of the most beloved double stars in the sky, Albireo, which appears blue and gold.
Star chart showing constellation Lyra with 4 stars and a nebula labeled.
The constellation Lyra the Harp is another summer favorite. It consists of a triangle and a parallelogram. Its brightest star is Vega Then, look next to it for the famous Double Double Star, Epsilon Lyrae. It’s really 4 stars in all.
Star chart with constellations Cepheus, Cassiopeia, Ursa Major, and Ursa Minor labeled.
On September evenings, the house-shaped constellation Cepheus the King lies upside down in the northern sky. It’s between the W shape of Cassiopeia and the Little Dipper, an asterism in Ursa Minor.

Our charts are mostly set for the northern half of Earth. To see a precise view – and time – from your location, try Stellarium Online.

Have fun exploring the sky!

New to stargazing? Read more: Planisphere: Your friend to find stars and constellations

Sky dome map for visible planets and night sky

Circle constellations, planets, the moon, the Milky Way and celestial lines.
Here is the sky dome view for September 2026. It shows what is above the horizon at mid-evening for mid-northern latitudes. The view may vary depending on your location. Image via Guy Ottewell’s 2026 Astronomical Calendar.

Read more: Guy Ottewell explains sky dome maps

Heliocentric solar system visible planets and more

Circle with sun at center, planets around, and zodiac names on outer edge.
Heliocentric view of solar system, September 2026. Chart via Guy Ottewell’s 2026 Astronomical Calendar. Used with permission. Plus Guy Ottewell explains heliocentric charts here.

Read more: Guy Ottewell explains heliocentric charts.

Some resources to enjoy

For more videos of great night sky events, visit EarthSky’s YouTube page.

Don’t miss anything. Subscribe to daily emails from EarthSky. It’s free!

Visit EarthSky’s Best Places to Stargaze to find a dark-sky location near you.

Post your own night sky photos at EarthSky Community Photos.

Visit Stellarium-Web.org for precise views from your location.

Bottom line: Visible planets and night sky guide: Tomorrow before dawn, look east for bright Jupiter near the thin crescent moon. This is a can’t-miss celestial event!

Posted 
September 8, 2026
 in 
Astronomy Essentials

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