恒星本身发光发热。

A fixed star can emit light and heat by itself.

一种求恒星视位置的新算法

A new algorithm of calculating the apparent place of fixed star

地球离最近的恒星大约为4光年。

The nearest star to earth is about 4 light years away.

这些恒星一定是形成于100到150亿年前。

The stars must have formed 10 to 15 billion years ago

这颗行星可能正环绕着一颗小恒星运行。

The planet is probably in orbit around a small star.

卫星通过对每颗恒星反复观察进行定位。

The satellite fixes positions by making repeated observations of each star.

这颗恒星的表面温度估计在零下75摄氏度左右。

The star's surface temperature is reckoned to be minus 75 degrees Celsius

这颗人造卫星将用来研究恒星的能量辐射。

The satellite will study energy radiation from stars.

托勒密绘制了48个星座1,000多颗恒星的星位图。

Ptolemy charted more than 1000 stars in 48 constella-tions

从那颗恒星上不断吹出恒星风。

A stellar wind streams outward from the star.

银河系由1,000亿颗恒星组成。

The Galaxy consists of 100 billion stars.

天文学家们必须要从这些恒星上采集更多的光谱来证实他们的推想。

Astronomers will have to collect more spectra from these stars to confirm their suspicions.

科学家什么时候能征服恒星呢？

When will scientists conquer the stars?