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Astronomy day 2025 is upon us! To rejoice, we have picked six targets to emphasise the range and scale of objects seen within the evening sky that may make for an exquisite and rewarding sight, whether or not you are observing with the bare eye or a telescope.
The American Astronomical League picks one evening every spring and fall for fanatics and specialists to deliver astronomy “to the people,” by holding stargazing occasions to have interaction the general public within the post-sunset realm.
This year, the autumnal Astronomy Day falls on Sept. 27. Be sure to check out the Astronomical League’s website to search out your native astronomy golf equipment and get in touch to see in the event that they’re holding an occasion to mark the event! Alternatively, you possibly can merely flip your eyes, telescope or binoculars skyward to search out the next six spectacular targets that may be discovered brightening the evening sky in late September.
6 targets to look out for on Astronomy Day 2025
1) The moon — diameter: 2,159 miles (3,475 kilometers)
Where better to start our tour than with Earth’s moon, the rising and setting of which has been a constant throughout our lives and the lives of every human being who has ever lived. The 34%-lit lunar disk can be found 15 degrees above the southwestern horizon at sunset on Sept. 27, with the red supergiant star Antares shining close to its right amongst the stars of the constellation Scorpius.
2) Saturn — diameter: 74,897 miles (120,500 km)
September is the perfect time to see Saturn shining high above the southeastern horizon in the hours following sunset, below the head of the Western Fish in the constellation Pisces.
The planet will appear as a bright “evening star” to the naked eye around this time, just a week or so out from opposition, while an 8-inch telescope will allow you to resolve the vast cloud bands marking the gas giant’s surface.
Ordinarily, a telescope of this size would give you a good chance of spotting the nearly 3,000 mile-wide (4,800 km) gap in Saturn’s iconic ring system called the Cassini Division. However, the gas giant‘s rings are currently oriented almost edge-on to Earth following the ring-plane crossing in March, making them look like a bright line piercing Saturn’s cloud disk through the eyepiece. Be sure to check back with Saturn on Oct. 6 for a chance to see Saturn’s largest moon Titan cast its shadow over the gas giant, though you’ll need a fairly large (8-inch) scope to be able to see it firsthand!
3) Polaris — size: 46 suns
It can be found by locating the Big Dipper in the constellation Ursa Major using a smartphone stargazing app and identifying the bright stars Dubhe and Merak, which form the “pouring edge” of the pan section of the famous asterism. Simply follow an imaginary line outward from Merak through Dubhe, and the next bright star you find will be Polaris.
The entire Northern Hemisphere night sky appears to revolve around Polaris, but this won’t always be the case. A slow wobble in Earth‘s rotational axis — called axial precession — has and will see the mantle of North Star handed to several other bright stellar bodies over a 26,000-year cyclical period. Read our guide to past, present and future North Stars to discover how to find them in the night sky.
4) Orion Nebula — diameter: 30 light-years
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The Orion nebula, also called Messier 42 (M42), is an excellent stellar nursery positioned 1,500 light-years from Earth within the constellation Orion, the Hunter.
The nebula is simple to select with the unaided eye beneath darkish skies and will be discovered by trying beneath the Orion’s Belt formation of three stars — Alnitak, Alnilam and Mintaka — which rise excessive above the southern horizon within the hours previous daybreak in late September.
As one of many closest star-forming areas to Earth, the Orion Nebula has come beneath intense remark from the astronomical neighborhood, together with flagship area telescopes like Hubble and James Webb. Protoplanetary disks have been imaged coalescing around newborn stars within the nebula, observations that haveallowed us to realize insights into the formation of alien photo voltaic methods.
5) Pleiades star cluster — diameter: 43 light-years
Observing the Pleiades through a pair of binoculars or a 6-inch telescope will reveal dozens of energetic young stars, including the seven most prominent stellar bodies from which the cluster got its nickname of the Seven Sisters: Asterope, Celaeno, Alcyone, Electra, Merope, Taygete and Maia.
Our sun was likely born in a star cluster billions of years ago, though its stellar siblings have since dispersed throughout our local galactic neighborhood.
6) The Milky Way
Our final target is our galaxy, the Milky Way. Earth is embedded in the Orion arm, or spur of the Milky Way, which makes it not possible to view its form from with out, as we are able to with the neighboring Andromeda galaxy. However, astronomers have been capable of deduce that we doubtless dwell inside an impressive barred spiral galaxy, primarily based partly on the focus of stars discovered alongside a flat area often called the galactic disk.
Head away from synthetic lights within the hours following sundown in September to see the dense ribbon of stars, mud and gasoline representing the galactic aircraft of the Milky Way streaming down towards the southwestern horizon. The glowing ribbon runs immediately by the intense stars of the Summer Triangle asterism — Altair, Vega and Deneb — and quite a few star clusters will be seen shining in and round its nebulous expanse.
Photographers should read our guide to photographing the Milky Way, while those looking to upgrade their gear should check out our roundups of the best lenses and cameras for astrophotography.
Stargazers hoping to catch a glimpse of the planets of our solar system or the host of deep sky objects beyond should also read up on our picks of the top telescope and binocular deals available in 2025.
This has been just a tiny sampling of the treasure trove of astronomical targets that will be visible as the shifting seasons transform the night sky over the coming months. Be sure to check out our monthly sky maps to stay up to date with everything happening in the post-sunset realm.
This page was created programmatically, to read the article in its original location you can go to the link bellow:
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