SOHO彗星的发现数目正向1000挺进！预计今年夏天可以到达。第1000颗彗星的发现者将获奖！
SOHO Comet CatcherBy Edwin L. Aguirre
February 1, 2005 | On January 15th, just seven months after the 800th comet was found in images obtained by the SOHO (Solar and Heliospheric Observatory) spacecraft, SOHO No. 900 was discovered by a German amateur astronomer.
Rainer Kracht detected the object in images taken with one of the spacecraft's LASCO coronagraphs. Kracht downloaded the observations from the LASCO Web site. The new interloper turned out to be a member of the Kreutz family of "sungrazing" comets, which usually get vaporized during their close encounters with the Sun. To date, Kracht has discovered 138 SOHO comets, including SOHO No. 500 on August 12, 2002. He details his discoveries on his Web site.
Launched in 1995, SOHO is operated by NASA and the European Space Agency. Although its primary mission is to continuously monitor the Sun's activity, it has now become the most prolific comet "discoverer" in history. Kracht is one of a growing number of successful SOHO comet hunters worldwide who regularly scan LASCO images, which are posted in near-real time on the Internet. To join in the search, visit http://ares.nrl.navy.mil/sungrazer/.
In the meantime, the SOHO project has established a Web-based contest to celebrate the spacecraft's 1,000th comet sighting, which is expected to come sometime this summer or early fall. Participants are asked to guess the date and time SOHO No. 1000 will reach perihelion. The three closest entries will win assorted SOHO products. 有自动发现soho彗星的软件吗？ :mrgreen:
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