41–60 of 98 results

Pro-Am Collaboration

New Circumpolar Comet Yi-SWAN

On March 26, 2009, Korean amateur Dae-am Yi caught the small, greenish glow of a new comet with his Canon camera.

Pro-Am Collaboration

Asteroid to Occult Star on Morning of Friday, Jan. 9

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.

Pro-Am Collaboration

Rare Eclipse of EE Cephei Is Set to Begin

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.

Pro-Am Collaboration

Rock from Space to Burn Up over Africa

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.

Pro-Am Collaboration

Possible Fireball Outburst Sept 9-10

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.

Solar System

Perseids Hitting the Moon

Amateurs have helped lead the way in recording the flashes of meteoroids hitting the Moon's night side.

Pro-Am Collaboration

Jupiter's Third Red Spot May Have Survived

Jupiter's newest red spot was disrupted during its encounter with the Great Red Spot and Oval BA, but appears to be reforming.

Pro-Am Collaboration

Comet Boattini Brightens

During May and June 2008, this visitor may be dimly visible without a telescope — but only if you live in the Southern Hemisphere.

Pro-Am Collaboration

Another Bright Nova, This Time in Sagittarius

Just magnitude 9 when discovered on April 18, 2008, this nova in Sagittarius has brightened tenfold.

Pro-Am Collaboration

Found in Cygnus: A 7th-Magnitude Nova

Two Japanese amateurs captured the new star on April 10, 2008, at a spot where their camera had recorded nothing just three days earlier.

Pro-Am Collaboration

A Triple Occultation by Eugenia and Its Moons

On March 8, 2008, this asteroid or one of its two moons could make a faint naked-eye star vanish briefly from the sky.

Pro-Am Collaboration

S&T's Star-count Challenge!

How bad is the light pollution where you live? How many stars can you see on a dark night? Last year the GLOBE at Night project tallied 8,500 star-counting estimates from around the world. That's great — but we can do better! All it'll take is 30 minutes and a clear evening between now and March 8th.

Pro-Am Collaboration

Possible Occultation by Varuna Sunday Night

A huge, remote asteroid could briefly blot out a faint star in Gemini on February 10-11, 2008.

Pro-Am Collaboration

Mercury, Messenger, and Observers

As the first images are released from Messenger's flyby of the innermost planet, previous ground-based observations are proving to be surprisingly accurate.

Pro-Am Collaboration

Nova in Puppis

On Nov. 14, 2007, a star in the constellation Puppis suddenly became visible in binoculars.

Pro-Am Collaboration

Comet Holmes Undergoes Huge Outburst

On Wednesday, October 24, 2007, this faint comet between the orbits of Mars and Jupiter suddenly became a naked-eye "star."

Exoplanets

Amateurs Spot Transiting Exoplanet

Using modest gear and a lot of skill, amateur astronomers catch a record-breaking planet crossing the face of its star 250 light-years away.

Pro-Am Collaboration

An Occultation by Pluto's Moon Charon?

New calculations indicate that Charon may actually occult an 8.7-magnitude star on Sept. 27, 2007.

Pro-Am Collaboration

Occultations by Possible Rings of Pluto This Week

Pluto will pass extremely close to an 8.7-magnitude star on September 27, 2007; observers should monitor the star's brightness electronically.

Pro-Am Collaboration

Nominations Sought for Amateur Award

The American Astronomical Society (AAS) is now accepting nominations for the Chambliss Amateur Achievement Award.

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