The entire image width covers about one-half a degree, about the same angular width as the full moon.

整个图像宽度约半度，相当于一个满月的直径宽度。

youdao

The entire image width covers about one-half a degree, about the same angular width as the full moon.

整个图像宽度约半度，相当于一个满月的直径宽度。

youdao