恒星

The Harvard Smithsonian Center for Astrophysics astronomers studied two dusty regions of star formation in the constellation Serpens Cauda, located 15,000 light years away.

哈佛大学史密森天体物理中心的天文学家们研究了位于15000光年之外巨蛇座尾部的两个富含星际尘埃的恒星形成区域。

This dark column of cool molecular hydrogen gas and dust is part of the Eagle Nebula, a star-forming region 6,500 light-years away in the constellation Serpens.

意译：星云图片画廊。这个黑暗柱状物的清凉分子氢气和灰尘中的一部分――鹰星云，恒星形成区域， 6500光年之遥，在星座巨蛇座。

A sidereal day is about 4 minutes shorter than a solar day .

一个恒星日比一个太阳日大约短4分钟。

Sidereal day is equal to a flat flat solar day 23 hours 56 minutes 409,054 seconds.

一个平恒星日等于平太阳日23小时56分409054秒。C

The sidereal day, two successive vernal equinox on the transit time interval.

恒星日，春分点连续两次上中天的时间间隔。

A sidereal day is shorter than a mean solar day by 3 minutes and 56 seconds.

恒星日比平均太阳日短三分五十六秒。

The sidereal year ,ie 365 days,6 hours,10 minutes

恒星年(即365天6小时10分)。

Tropical year , and sidereal year are two different concepts .

回归年与恒星年是不同的两个概念。

Unfortunately, here on planet Earth, with its decidedly undecimal sidereal year of 365-and-a-quarter days, that is just not going to happen.

但是不巧的是，在地球这个行星星球上，这种事不会发生，因为"恒星年（由365又1/4天所组成）是非十进制的"这一事实是确凿无差的。

The sidereal year is not used to construct a calendar.

恒星年不用于编制年历。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。