On March 26, 2009, Korean amateur Dae-am Yi caught the small, greenish glow of a new comet with his Canon camera.
On the morning of Friday, Jan. 9, from 10:55 to 11:06 UT, asteroid 1963 Bezovec occults the 8.3-magnitude star HIP 64220 in a narrow path from Baja California through Texas to New England and Nova Scotia.
During January 2009 a faint star in Cepheus will fade, as it does every five or six years, when "something" goes in front of it.
Light pollution is most amateur astronomers' worst enemy. Learn here how to measure and describe how brightly your sky glows.
S&T contributing editor Fred Schaaf takes a new approach to an old subjecty by describing the 50 best astronomical sights of any kind, from naked-eye spectacles to objects that can only be seen through telescopes at high magnification.
Late Monday night, October 6-7, 2008, a tiny asteroid will enter Earth's atmosphere over Sudan, creating a spectacular explosion in the night sky.
An unexpected meteor burst was detected on the night of September 8-9. Bill Cooke of the Marshall Space Flight Center is urging meteor watchers to see if the activity continues on the night of September 9-10.
Telescope tinkering can be fun and rewarding.
When Galileo Galilei first turned a telescope to the heavens four centuries ago, he discovered amazing things and you can follow in his footsteps.
Como sacar fotos increíbles de constelaciones, nebulosas, grupos de estrellas, y nuestra galaxia.
Todo lo que necesita para disfrutar de las maravillas del cielo nocturno es un par de binoculares.
Pasar una o dos horas aprendiendo a leer un mapa estelar le abrirá el Cosmos para una vida de exploración.
La Astronomía no merece su reputación como un pasatiempo difícil y caro. Sólo necesita empezar con los consejos correctos.
Lo esencial de la navegación por el cielo con un telescopio y atlas de estrellas.
Cada año millones de personas compran telescopios, pero pocas tienen una buena idea de qué deben buscar (o evitar) cuando vayan en busca de su instrumento nuevo.
Even when the air is perfectly clear, a significant fraction of starlight is lost in the atmosphere. And when there's a lot of haze or your target is close to the horizon, atmospheric extinction is a major problem.
Here are links to some websites that can help you predict where and when you'll get good transparency for deep-sky observing.
During May and June 2008, this visitor may be dimly visible without a telescope — but only if you live in the Southern Hemisphere.
Just magnitude 9 when discovered on April 18, 2008, this nova in Sagittarius has brightened tenfold.
Two Japanese amateurs captured the new star on April 10, 2008, at a spot where their camera had recorded nothing just three days earlier.
On March 8, 2008, this asteroid or one of its two moons could make a faint naked-eye star vanish briefly from the sky.
A huge, remote asteroid could briefly blot out a faint star in Gemini on February 10-11, 2008.
Earth's beautiful and historical places serve as foregrounds for the starry sky.
On Nov. 14, 2007, a star in the constellation Puppis suddenly became visible in binoculars.
On Wednesday, October 24, 2007, this faint comet between the orbits of Mars and Jupiter suddenly became a naked-eye "star."