Five Planets In a Twilight Sky
Until early April, all five planets that are ever visible to the unaided eye shine at once during dusk.
Saturn Covers a Star
Late Friday night, November 14–15, Saturn and its ring system glide right in front of an 8.4-magnitude star in Gemini.
The Transit of Venus: Where to See It
For the first time since 1882, Venus will glide across the face of the Sun. Here's where you'll be able to watch this rare event on June 8, 2004.
Reanimating the 1882 Transit of Venus
Travel 130 years back in time to watch Venus transit the Sun in 1882, thanks to the discovery of 147 forgotten photographs taken by David Peck Todd from Mount Hamilton in California.
The Transit of Venus: Tales from the 18th and 19th Centuries
Observers and administrators gather at the US Naval Observatory in Washington, DC, in preparation for the American expeditions to the 1874 transit of Venus.Courtesy US Naval Observatory Library. A magnificent rendezvous between the planet of love and the bright orb of the Sun. One of the most celebrated phenomena in…
Venus at Its Best
Venus is readily visible in the evening sky until late May during this most favorable apparition of its eight-year cycle.
One Planet, Two Moons, Three Shadows
This coming weekend, weather permitting, almost anyone with a telescope in North America (and northwestern South America) can see the shadows of three Jovian moons at once.
One Planet, One Moon, and Three Shadows
Clouds and poor seeing plagued much of North America on the night of March 27–28, 2004, but some observers still managed to see the remarkable triple shadow transit on Jupiter.
How Yuji Hyakutake Found His Comet
Ever wonder how somebody actually finds a comet, and what happens when he does? Here's one astronomer's story.
A Disturbance In Jupiter's Clouds
A new, 40°-long, diffuse blue feature is currently visible at the interface between Jupiter's South Equatorial Belt and the Equatorial Zone.
Storm Watch on Mars
If events of the past 30 years are an indication, there's a good chance that the Martian landscape may soon be cloaked by a major dust storm.
Asteroid Occultation in November
North Carolina skywatchers have a chance to see the asteroid 72 Feronia pass in front of an 8th-magnitude star around 2 a.m. Eastern Standard Time on November 5th.
Saturn Hides Another Star
On Tuesday November 25th, Saturn and its ring system glide in front of an 8.3-magnitude star in Gemini, the second time Saturn has occulted a star in 10 days.
Planetary Occultations for 2003
No matter where you live, there are plenty of chances to see an asteroid pass in front of a star this year.
Five Asteroids Meet
There’s a rare imaging challenge in Leo this month for amateurs with CCD-equipped telescopes.
Asteroid Aurora Occults a Star
On the night of September 24–25, minor planet 94 Aurora will pass directly in front of the 5th-magnitude star Chi Geminorum, blocking its light for up to 7 seconds.
Moon Occults Mars
During the predawn hours of Thursday, July 17th, the waning gibbous Moon will cover Mars for skywatchers in southeastern Florida, the Caribbean, and parts of Central and South America.
Vesta in Virgo
During April, Vesta has many close encounters with members of the Virgo Galaxy Cluster.
Lunar Occultation Highlights for 2003
Dozens of times this year, no matter where you live, the Moon can be seen hiding bright stars in its path. Here's when and where you can watch the Moon occult these stars.
Dust Storm on Mars
A large regional dust storm has enveloped several thousand square kilometers of the red planet and shows no signs of abating.