准备迎接御夫座Ependium Aurigae的千年第一次日食
Gearing Up for Epsilon Aurigae's First Eclipse of the Millennium
摘要：
神秘的三等长周期食双星系统御夫座预计将在2009年夏末开始其2年一次的食。虽然这是真正的兴奋开始的时候，但在第一次接触之前还有很多东西要学。本文讨论了目前的观测结果，迄今为止，积累了使用光度监测，H-α光谱和其他数据来源。这些发现中的关键是：（1）低振幅光变准周期在过去20年中显著减少，（2）日食的持续时间一直在减少，而全食的持续时间一直在增加。观察活动的网站是：www.du.edu/~rstencel/epsaur.htm。
英文摘要：
The mysterious 3rd magnitude long period eclipsing binary star system epsilon Aurigae is predicted to be starting its 2 year eclipse in the late summer of 2009. While this is when the real excitement starts, much is to be learned before first contact. This paper discusses current observational results that have accumulated thus far, using photometric monitoring, H-alpha spectroscopy and with other data sources. Key among the findings are that (1) the low amplitude light variation quasi-period has decreased significantly over the past 20 years, and (2) that the duration of egress, eclipse-to-eclipse has been decreasing, while the duration of total eclipse has been increasing. The website for the observing campaign is: www.du.edu/~rstencel/epsaur.htm .
机构、总结、中文摘要均由AI分析而来，可能存在错误，请以论文正文为准。
