Looking for an observing challenge? An expert observer offers advice for exploring the Minkowski catalog of planetary nebulae. German-American astronomer Rudolph Minkowski was best known for his spectroscopic work on supernovae. But he was also interested in "gaseous nebulae," and in the 1940s, created a catalog of planetary nebulae he'd identified with the 60-...
In the Going Deep column in the July 2016 issue Sky & Telescope Contributing Editor Steve Gottlieb shared his expert knowledge, gathered through multiple observing sessions and outside research, of the Hercules Galaxy Cluster, cataloged as Abell 2151. The central 18' × 6' region, called Abell 2151C, is the richest region of the cluster...
In the July 2016 Sky & Telescope, Jim Mullaney presents "A Forgotten Observing Classic": the story of Charles Edward Barns and his delightful 1927 amateur-astronomy guide 1001 Celestial Wonders as Observed with Home-Built Instruments. Today Barns's reputation, to the extent that the amateur community knows of him at all, stems from his colorful and...
Watch a million stars age in these prize-winning simulations of globular clusters. The simulations track the stars' movements and evolution over 12 billion years.
Here's some further reading on the stages of star formation visible in the Trifid Nebula, subject of the May 2016 issue's Going Deep column.
How many details can you see when you take a look at galaxies M81 and M82? On October 13, 2015, Contributing Editor Howard Banich experienced a spectacular morning of observing at Steens Mountain in southeastern Oregon. With fantastic transparency and increasingly good seeing, he was able to view M82 as he'd never seen it...
To expand on the feature article on adaptive optics in our May 2016 issue, we're including here a full gallery of before-and-after images. The effect of the technology is immediately visible - and astounding.
Ancient cosmic sound waves (aka baryon acoustic oscillations) shaped the universe we see today. These animations demonstrate how the universe's large-scale structure came to be.
Check here for a list of known errata in 2016 issues of Sky & Telescope. If you don't see the error you found, send us an e-mail and alert us.
On a single night at a remote site, Contributing Editor Steve Gottlieb observed 35 circumpolar galaxies. Here we're providing a complete list of those 35 galaxies,
Astronomers dedicated significant time and resources to studying the planets as deep-space exploration ramped up in the late 1960s and early 1970s.
Take advantage of early evenings and dark winter skies — turn your scope southward to view some of the most massive objects in the universe.
Read on for an entertaining (and true) story on the Soviets, the morals of society, and astronomy.
As part of our December 2015 issue’s articles on general relativity and gravitational waves, we’ve compiled some videos to help you grasp both.
The cover story of the October 2015 issue features the conundrum of massive star formation: how do these stars can form at all in the hostile environment they themselves create? Here, you'll find accompanying videos.
An observing guide for the Pegasus Galaxy Groups
Some additional finder aids for "Going Deep" in Delphinus.
What is a solar flare? Flares are spikes in emission from the Sun, energy unleashed (we’re fairly sure) when magnetic field lines suddenly reconnect. Read more about them and watch fascinating videos in this online extra to our November 2015 cover story.
Watch in-depth conversations between Dennis di Cicco and astronomy vendors to find full details on hot new products and featured equipment.
iOptron’s chief engineer Kevin Zou takes Sky & Telescope on a tour of the company’s extensive line of telescope mounts and camera tracking platforms.
Sky Watcher product specialist Kevin LeGore gives an overview of the company’s latest offering of telescopes.
Learn the history of Software Bisque, from its introduction of TheSky planetarium software in the 1980s to its evolution of state-of-the-art robotic telescope mounts.
Thanks to NASA's New Horizons spacecraft, we're about to see Pluto up close for the first time. Here are candid snapshots of the scientists and engineers who'll make it possible.
So when astrologers talk about tides linking us to the planets, they're babbling pathetic woo.
Experience Herschel’s “Night of Discovery” for yourself! Follow this guide to recreating William Herschel's amazing night covering 73 deep-sky delights.