Author Archives: Tony Flanders

About Tony Flanders

Contributing editor Tony Flanders has been working with S&T in some capacity since 2003.

Jupiter Dances with the Moon

On the night of Monday, January 21, 2013. Jupiter, the second-brightest planet, appears less than a finger-width from the Moon as seen from North America. And in much of South America, the Moon passes in front of Jupiter, hiding it from view.

Saturn on Feb. 23

A Saturn Almanac

Spectacular Saturn is a perennial favorite of telescope users everywhere. Click here to find printable data on the positions of Saturn's rings and planets.

The crescent Moon meets Venus

Follow the Morning Moon

The Moon is the great highlight of the early morning sky this week, as it heads for a spectacular rendezvous with Venus at dawn on Thursday, January 10th.

Radiant of the Quadrantid meteors

Catch the Quadrantids in Moonlight

Undeniably one of the year's best, the Quadrantid meteor shower peaks on the morning of Thursday, January 3rd. The best viewing opportunity comes between 1 a.m. and dawn, but you'll have competition from a waning gibbous Moon.

Jupiter Meets Venus

Jupiter Meets Venus

Jupiter and Venus have just crossed paths in the sky. From The two planets are within 5° of each other from March 9th to 17th, fitting in a single field of view through most binoculars.

Cassiopeia from Hevelius's star atlas

SkyWeek TV

S&T associate editor Tony Flanders muses on the rewards and challenges of scripting a television program.


Time Committee Procrastinates

An international committee formed to settle the protocol for civilian time once and for all recently announced an important decision — they're going to put off the decision for another three years.

SkyWatch 2012

SkyWatch 2012: Movies and More

SkyWatch 2012, the annual publication of Sky & Telescope, will soon be available as a digital download. You can also purchase a hardcopy magazine online, and it should appear on newsstands on October 18th. The theme of this year's SkyWatch is motion. Most people in the 21st century probably think of astronomy as timeless,...

SkyWatch 2012: The Planets

Planets change greatly in appearance over time frames ranging from hours to months. That's both due to superficial effects — rotation revealing different sides of a globe — and fundamental changes on a planet's surface or in its atmosphere. A number of amateur astrophotographers have stitched their own images together to create movies showing...

SkyWatch 2012: The Deep Sky in Motion

Due to the vast distances separating deep-sky objects from Earth, few show obvious changes on scales shorter than a human lifetime. But there are exceptions. When stars explode or flair, their energy and/or cast-off material can create changes visible thousands of light-years away. For instance, the star V838 Monocerotis flared in 2002. The flash...

A prominent solar flare captured by SDO's AIA instrument in June, 2011

SkyWatch 2012: The Sun

The Sun is incredibly dynamic — something that's difficult to convey properly in the pages of a book or magazine. If you watch a major solar flare through a telescope, it will often change from one minute to the next. Time-lapse movies compress the time scale, allowing you to see this motion directly. In...