等 级:超级版主
头 衔:管理员
积 分:9722分
专家分:431分
主题:科学英语:每日星相(11.03)
点击:657 | 回复:7 | 标签:
每日星相
Daily Astronomy
规则:参与的朋友可以每人翻译一句,也可全部翻译,依照自己情况而定。
注意:抄袭灌水者,无论是谁,一律删贴处理!
说明:每天悬赏50分。

The full-looking waning gibbous moon and the Pleiades star cluster rise in the east around nightfall tonight. After rising, the moon and the Pleiades keep each other company all through the night. They climb close to overhead around 1:00 a.m. (on Wednesday, November 4) and appear rather low in the west as dawn begins to color the sky (Wednesday, November 4).
There are a couple of reasons why you might not see the Pleiades – or the Seven Sisters – tonight. That’s in spite of the fact that tonight’s moon and the Pleiades reside at almost the same spot on the sky’s dome.
First of all, the blinding moonlight will wipe out most if not all the Pleiades’s stars from view. (On a dark, moonless night, most people can see six Pleiades’s stars.) You can use the moon to help you locate the Pleiades cluster, but even with binoculars, you may have a hard time making out this dipper-shape pattern of stars.
There’s another reason why you might not spot the Pleiades cluster. Depending on where you live in North or South America, the moon will occult – pass in front of – certain stars of the Pleiades star cluster tonight.
Related:
The Pleaides cluster enjoys worldwide renown
2009 World Wide Occultations of the Pleiades Cluster
Written by Bruce McClure
|
楼主 Date: 2009-11-02 20:14:59