421–440 of 463 results

Variable Stars

An 11th-Magnitude Supernova

An unusually bright supernova has gone off in NGC 2403, an 8.5-magnitude galaxy in the constellation Camelopardalis, the Giraffe.

Occultations

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.

Planets

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.

Transit of Venus

Celestial Objects to Observe

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.

Celestial Objects to Observe

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…

Planets

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.

Celestial Objects to Observe

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.

Celestial Objects to Observe

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.

Occultations

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.

Occultations

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.

Celestial Objects to Observe

Five Asteroids Meet

There’s a rare imaging challenge in Leo this month for amateurs with CCD-equipped telescopes.

Celestial Objects to Observe

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.

Path of Vesta in 2003

Celestial Objects to Observe

Vesta in Virgo

During April, Vesta has many close encounters with members of the Virgo Galaxy Cluster.

Celestial Objects to Observe

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.

Planets

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.

Occultations

Crescent Moon Occults Venus

On Sunday evening, October 26th, Venus disappears behind the crescent Moon for observers in South America and Hawaii.

Planets

Mercury Transits the Sun

When this innermost planet passes between the Earth and the Sun on May 7th, it will appear as a tiny black "sunspot" in small telescopes.

Asteroid 2002NY40

Celestial Objects to Observe

Catch Hermes on the Fly

Since 1937, Hermes has made eight unseen flybys past Earth. In late October, the asteroid will be 13th magnitude — bright enough to be seen in scopes 10-inches and larger.

Celestial Objects to Observe

Upcoming Asteroid Occultation

S&T illustration. A few minutes before 5:00 a.m. Eastern Standard Time on December 24th, the 170-kilometer-wide minor planet 334 Chicago passes in front of the 8.5-magnitude star SAO97327 in Gemini. The nominal path for this event crosses Philadelphia (at about 9:57 Universal Time) and continues westward across Lake Michigan, just…

Planets

Jupiter's Moon Dances

Every six years, for a few months at a time, Jupiter's satellites engage in a wonderful variety of alignments. They're starting up again.

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