The STEREO (Solar TErrestrial RELations Observatory) is the third mission in NASA's Solar Terrestrial Probes program. Not actually intended for comet hunting, the STEREO will be a very productive sungrazing comet detector. It will also be able to detect much fainter comets than that of the current LASCO/SOHO satellite.
Sent to Mr sun grazer, possible STEREO new comet. Kreutz. Still checking the reports, nothing confirmed for 20091219-21 second oppinions most welcome. Should
Gidday Jiangao, This looks to be Asteroid Pallas, approx mag 8. it looks like it has a comet tail due to the optical distortion of the HI1a imager, see the