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AstroAlert


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

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

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

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

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

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

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

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

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.

Amateur observations of variable star PQ Andromedae are needed on September 11-12, 2007, to ensure a successful Hubble campaign.

A suspected dwarf nova is undergoing its first observed outburst and had reached 9th magnitude as of September 5, 2007. More observations are needed.

Please help us accurately map the edge of the Moon by timing occultations of stars during the August 28, 2007, total lunar eclipse.

On Tuesday morning, August 21, 2007, observers across much of North America should watch for a possible occultation by asteroid 146 Lucina's satellite.

On August 8, 2007, variable-star observer Hiroshi Abe discovered a 9th-magnitude nova in Vulpecula. The AAVSO seeks your observations.



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