研究者猜测它的宿主星系很有可能隐藏在星尘之中，但无迹可寻。
Researchers thought the galaxy must be hidden behind some dust. But they didn't find one.
前身恒星很容易找到，因为它是这个宿主星系中最亮的恒星之一。
The progenitor was comparatively easy to find because it was one of the brightest stars in the host galaxy.
Ia型超新星如此之亮，以至于在几个星期内它的寄主星系的光芒也相形见绌。
Type Ia supernovae are so luminous that they outshine their host galaxies for several weeks.
研究小组通过比较黑洞和它的寄主星系的质量，可以确定这些黑洞吞噬了多少物质。
The team also compared the masses of the black holes with the total masses of their host galaxies to determine how much matter they had swallowed.
查克拉·巴蒂说她的方法只能应用于卫星星系质量只有主星系质量的千分之一的星系。
Chakrabarti says her method should work for satellites as small as one one-thousandth the mass of the host galaxy.
最初人们认为，黑洞的尺寸和其宿主星系的大小是成比例的，但这个观点现在看来并不尽然。
Initial observations that the size of a black hole and the size of its host galaxy were matched are turning out to not always be the case.
因为这些星簇很容易便消失在主星系混乱的恒星背景中，仔细观察星簇的瓦解是很困难的。
It's been difficult to observe exactly how star clusters dissolve due to the fact that they are easily lost in the cluttered star field background of the host galaxy.
牛郎星最让人印象深刻的很可能是1956科幻片《惑星历险》中成为了外星人的主星系。
Altair is probably best known for being the home star system of the aliens in the 1956 science fiction film Forbidden Planet.
科学家们在研究一种距离遥远，亮度超常的类星体，它是唯一没有已知宿主星系的恒星状球体。
Scientists were checking out a quasar, an incredibly distant, incredibly bright object. This quasar was the only one without a known host galaxy.
天文学家很早就了解，年轻的或者“疏散”的星簇最终必然被他们所在的主星系分解和吞噬。
Astronomers have long known that young or "open" star clusters must eventually disrupt and dissolve into the host galaxy.
天文学家很早就了解，年轻的或者“疏散”的星簇最终必然被他们所在的主星系分解和吞噬。
Astronomers have long known that young or "open" star clusters must eventually disrupt and dissolve into the host galaxy.
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