After months of observations, he noticed that one unidentified yet persistent source of noise was coming from the direction of the constellation Sagittarius.
经过几个月的观测之后，他注意到一个来自人马座方向的无法识别，但一直持续不断的噪声源。
Astronomers in Japan say one of the best-known nebulae-the Trifid, in the constellation sagittarius-owes its splendor to a smashup between two clouds of gas and dust.
日本的天文学家说，最知名星云之一的人马座三裂星云，它的壮丽景观可正是由两朵气体和尘埃云的碰撞造成的。
Parts of the great disk are obscured by dust, and beyond one of those dusty blots, near the teapot of the constellation Sagittarius, lies the center of the Milky Way.
这个大碟子的一些部分因为尘埃而显得模糊，在其中一个模糊点之外，靠近人马星座茶壶的地方，就是银河系的中心。
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