Constellations

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Astrophotographer Miguel Claro took the image from São Miguel Island in the Azores on April 5, 2014.

International Dark Sky Week 2020 starts Sunday — here's how to celebrate online

By Elizabeth Howell published

Celebrate International Dark Sky Week from anywhere, with sessions streaming online starting Sunday (April 19).

Constellations
Auriga is a constellation of stars shaped like a pentagon. The brightest is Capella, which is actually a group of four stars.

Auriga constellation: Facts about the charioteer

By Adam Mann last updated

All about the constellation Auriga, the charioteer.

Constellations
A star chart from "A Handbook and Atlas of Astronomy" by W. Peck (published 1890).

What are star charts?

By Steve Fentress published

Star charts show the arrangement of stars in the sky, in a style that can be scientific, artistic or both, depending on the intended use.

Constellations
Zodiacal light glows in the sky at ESO’s Very Large Telescope (VLT) at Paranal Observatory in Chile. Image released Dec. 2, 2013.

Zodiacal light: How to spot the rare celestial glow in the night sky

By Joe Rao published

How to see the rare zodiacal light, the faint ghostly glow that appears when sunlight reflects off interplanetary debris likely left over from the formation of our solar system.

Constellations
A lonely stargazer looks up at the constellation of Orion, the hunter — and its dimming star Betelgeuse — in this photo captured from Portugal's Dark Sky Alqueva Reserve.

Orion and its dimming star Betelgeuse shine over a stargazer in this sentimental night-sky photo

By Miguel Claro published

A night-sky photo features a lonely stargazer admiring the beautiful constellation of Orion, the hunter — and it's strangely dimming star Betelgeuse.

Constellations
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Spot Auriga the charioteer (and goat tender) in the winter sky

By Joe Rao published

Auriga is one of those star patterns whose exact origin is a hopeless mix of antique conceptions.

Constellations
The image shows a colorful star trail captured from inside Ramon Crater, the world's largest "erosion cirque," located in Israel's Negev Desert.

Star Trails Swirl Over Israel's Negev Desert (Photo)

By Miguel Claro last updated

Star trails circle over Ramon Crater in this long-exposure photo of the night sky over Israel's Negev Desert.

Constellations
A computer-generated image of objects in Earth orbit that are currently being tracked. Approximately 95 percent of the objects in this illustration are orbital debris – not functional satellites. The dots represent the current location of each item. The orbital debris dots are scaled according to the image size of the graphic to optimize their visibility and are not scaled to Earth.

Scientists Propose New Satellite Tech to Dodge Space Junk from Megaconstellations

By Charles Q. Choi published

New infrared cameras and gel-based thrusters just might help future satellites dodge space debris, a new study finds.

Constellations
A close-up of the Rho Ophiuchi cloud complex, captured by astrophotographer Miguel Claro from the Cumeada Observatory, the headquarters of the Dark Sky Alqueva Reserve in Reguengos de Monsaraz, Portugal.

Rho Ophiuchi's Colorful Cosmic Clouds Glisten in Starry Deep-Space Photo

By Miguel Claro published

One of the most colorful wonders of the summer sky in the Northern Hemisphere, especially for deep-sky photographers, is the Rho Ophiuchi cloud complex.

Constellations
In this image we can see the asterism of the Summer Triangle a giant triangle in the sky composed of the three bright stars Vega (top left), Altair (lower middle) and Deneb (far left).

Why Do We Call It the 'Summer' Triangle?

By Joe Rao published

Step outside this week as soon as darkness falls and look directly overhead, and you will see the famous and very distinctive trio of bright stars collectively known as The Summer Triangle.

Constellations
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