On August 8, 2007, variable-star observer Hiroshi Abe discovered a 9th-magnitude nova in Vulpecula. The AAVSO seeks your observations.
On Tuesday evening, April 17, 2007, observers in Georgia and Florida will get a chance to watch asteroid 411 Xanthe cover the 4.2-magnitude star Iota Cancri.
On March 8, 2008, this asteroid or one of its two moons could make a faint naked-eye star vanish briefly from the sky.
New calculations indicate that Charon may actually occult an 8.7-magnitude star on Sept. 27, 2007.
Just magnitude 9 when discovered on April 18, 2008, this nova in Sagittarius has brightened tenfold.
For anyone in a 25-mile-wide path right across Los Angeles, a bright star in Ophiuchus will wink off for several seconds in the predawn hours of April 6, 2010.
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.
Teaser for partners.
The best occultation of a star by Pluto ever predicted for North America will occur between 10:40 and 11:00 Universal Time on Sunday morning, March 18, 2007.
From late April through mid-May 2007, professionals are seeking amateur observations of four X-ray binaries and a cataclysmic variable star.
During May and June 2008, this visitor may be dimly visible without a telescope — but only if you live in the Southern Hemisphere.
On Wednesday, October 24, 2007, this faint comet between the orbits of Mars and Jupiter suddenly became a naked-eye "star."
Two Japanese amateurs captured the new star on April 10, 2008, at a spot where their camera had recorded nothing just three days earlier.
Observers watching the eclipsed Moon with binoculars in northeastern North America on March 3, 2007, wiill see a 5th-magnitude star wink out.
Amateur observations of variable star PQ Andromedae are needed on September 11-12, 2007, to ensure a successful Hubble campaign.
Please help us accurately map the edge of the Moon by timing occultations of stars during the August 28, 2007, total lunar eclipse.
Use this form to report your observations following receipt of a nearby-supernova AstroAlert, whether or not you found anything suspicious. Please fill in as many fields as you can. Your Name: E-mail Address: Observing Site: (Latitude, longitude; or city, state, country.) Time Zone: Pick oneUT - 13hUT - 12hUT - 11hUT - 10hUT -...
On November 3, 2010, two amateurs in Japan discovered an 8th-magnitude comet visually. It's visible in binoculars.
Late Wednesday night, September 19–20, 2007, observers across much of North America should watch for a possible occultation by asteroid 146 Lucina's satellite.
On March 26, 2009, Korean amateur Dae-am Yi caught the small, greenish glow of a new comet with his Canon camera.
After a two-year search, on March 15, 2007, Australian amateur Terry Lovejoy found his first comet.
California's comet-hunting veteran Don Machholz bagged his 11th discovery on March 23 and 26, 2010. It's a faint diffuse comet, low in the morning sky.
On March 29, 2007, two new white spots appeared on Jupiter. Keep watch as they develop over the coming weeks.
The International Occultation Timing Association (IOTA) announced on April 3, 2007, the release of a free e-book, Chasing the Shadow: The IOTA Occultation Observer's Manual.
Japanese amateur Koichi Itagaki, of recent comet fame, has just discovered a nova near Rigel on November 25, 2009.