The bottom line of the section specifies the size of the smallest star circle which will be displayed on the map.

这部分的下面一行指定了要绘制在星图上最小恒星圆的尺寸。

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A close encounter with another star put the doomed star (orange circle) on a path that took it near a supermassive black hole.

一颗过于接近已经熄灭的恒星的恒星，会进入一颗超级巨型黑洞的轨道。

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You can choose to circle the idea, draw a picture around it (like a star) to emphasize important points.

你可以在观点上画圈、在它上面画个小图(比如一个星号)来强调它是重要的观点。

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Later came intensive memorising of the star-compass, a circle of coral pebbles, each pebble a star, laid out in the sand round a palm-frond boat.

ECONOMIST: Mau Piailug

The new worlds, which circle the star HD 40307, are 4.2, 6.7 and 9.4 times the size of Earth.

BBC: Trio of 'super-Earths' discovered

The observatories will circle this point, keeping the Earth and our star in a near-straight line.

BBC: World's most daunting parking job