1801–1820 of 1,874 results

Variable Stars

X Sagittarii: A Variable Star Toward Our Galaxy's Heart

This naked-eye variable should be near peak brightness every Wednes-day night during August, September, and October.

Celestial Objects to Observe

Chi Cygni Rises Toward Maximum

Catch a orange-red variable star in Cygnus, the Swan, as its brightness peaks in early July.

Celestial Objects to Observe

Meteors That Changed the World

When "shooting stars" make the transition from heaven to earth, even small strikes can have a huge impact on human history.

Occultations

Lunar Occultation Highlights for 2004

No matter where in the world you live, you can see the Moon hide stars and planets in its path. Here's when and where you can see dozens of lunar occultations this year.

Celestial Objects to Observe

A Daytime Occultation of Jupiter

Here's a blue-sky project if ever there was one. The thin waning crescent Moon will occult the second-brightest planet as seen from much of North America on Tuesday, November 9th.

Occultations

Planetary Occultations for 2004

You've got plenty of chances to see an asteroid or planet pass in front of a star this year — and here's when and where to see them.

Celestial News & Events

Celestial Highlights for 2004

Eclipses, occultations, comets, and a transit of Venus — it’s going to be an exciting year for observers.

Celestial Objects to Observe

The Closest Whiz-by of Toutatis

An asteroid several kilometers wide will brighten to 9th magnitude and be visible in small telescopes when it passes Earth in late September.

Asteroids

Flora and Herculina meet Saturn

While checking out Saturn and Titan in the next few months, don't overlook two nearby minor planets: 8 Flora and 532 Herculina.

Paths of Vesta and Uranus in late 2004

Celestial Objects to Observe

Spot Vesta (and Uranus)

Two solar-system bodies just below naked-eye brightness can be found with binoculars in eastern Aquarius on October and November evenings: the minor planet 4 Vesta and Uranus.

Celestial Objects to Observe

The Variable Star T Cephei

The long-period variable star T Cephei peaks this October. The star is relatively easy to locate in binoculars because of its red hue.

Celestial Objects to Observe

The Moon Meets Jupiter and Venus

The crescent Moon joins Jupiter and Venus in the east at dawn to create a beautiful scene on November 9th and 10th.

Celestial Objects to Observe

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.

Observing

Catch the End of the Perseids

It's not too late to catch the tapering-down of the Perseid meteor shower during the nights after its peak.

black drop

Where Was the Black Drop?

Reports around the world vary dramatically as to the reality of a black-drop effect during the Venus transit.

Celestial Objects to Observe

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.

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

Daylight Phenomena

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…

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