Do you think 2016 has seemed unusually long? An international agency has decided to make it even longer.
Bringing order to chaos, the International Astronomical Union has approved standardized spellings and designations for the traditional names of 212 bright stars.
Our Constellation Basics webinar provides background information about the major winter constellations. Here are some accompanying online resources.
Calendars help us plan our lives. And for amateur astronomers, no plan is complete unless it includes sky events.
Two star parties in late May, including one of the biggest in the world, drew together beginners and experienced astronomers alike.
Looking through a telescope introduces you to a whole new world of unexpected wonders. But telescopes come in a huge range of sizes and shapes. Here's a detailed, printable guide to the essential features that every good scope needs to have.
April 2014 will be the last month covered by Sky & Telescope's wildly popular SkyWeek TV show.
Did you know that the great globular cluster Messier 5 contains two bright Cepheid variables? Here's the useful information about them.
Uranus and Neptune are easy to find with the aid of the charts in this article.
On Thursday, May 29th, Comet 209P/LINEAR will pass just 5 million miles (8 million km) from Earth, one of the closest comet approaches in history.
The two brightest asteroids are very close to each other in the sky in 2014, fitting in a single field of view through binoculars and some telescopes.
Start the new year right by viewing an excellent but short-lived meteor shower, called the Quadrantids, which peaks on Friday, January 3rd.
Venus usually appears pretty boring through a telescope. But from mid-December to mid-February it's a spectacularly long, thin crescent.
Transit times for Jupiter's Great Red Spot are listed through December 2014.
The March 2014 issue of Sky & Telescope features an article by Bob Cava, who hunts for quasars in light-polluted New Jersey with his 10- and 16-inch telescopes. As Cava discovered, quasar hunting requires considerable skill with astronomical databases and online tools. This web supplement describes some useful resources and collects their URLs in a…
Comet ISON has come and gone, but lovely Comet Lovejoy (C/2013 R1) is still going strong. It is now at or near peak brightness, and well placed in the Northern Hemisphere's predawn sky.
Veteran comet observer John Bortle reports that Comet ISON is undergoing a major outburst. It was six times brighter when he observed it this morning (November 14th) than on the previous morning.
While Comet ISON is brightening rapidly, Comet Lovejoy (C/2013 R1) is far more impressive right now, and also much better placed in the sky. It's shown here passing Messier 44, the Beehive Cluster.
It's easy to stay warm on cold winter nights if you dress appropriately — and take a few common-sense precautions.
Nova Delphini 2013 was discovered on August 14th, peaked two days later at magnitude 4.4, and by early November was down to magnitude 11.
Check out our videos from the 22nd annual Northeast Astronomy Forum, one of the world's largest telescope shows.
May 2013 features an annular solar eclipse that's visible from extraordinarily little land area and a penumbral lunar eclipse that isn't visible at all.
On the evening of Sunday, March 17th, stargazers all across the Americas will be able to watch the Moon pass spectacularly close to Jupiter, the third brightest object in the night sky after the Moon and Venus.
This is the web supplement to Howard Banich's article "The Determined Observer's Guide to M101," in the June 2013 issue of Sky & Telescope. In it, Banich describes observing M101 with his motorized 28-inch alt-azimuth Newtonian, preparing the sketch shown below at low resolution. M101 is extraordinarily rich in active star-forming regions, 10 of which…
A remarkable series of events takes place low in the west-northwest shortly after sunset from late May to late June. It features the tightest three-planet grouping visible without binoculars until 2026 and an excellent apparition of Mercury.