During the"day" the water goes back into the coma.
这会产生可见的气氛或彗发,有时还会产生彗尾。
This produces an atmosphere or coma, and sometimes also a tail.
这就意味着火星将会穿过彗星的彗发区域。
In other words, Mars will pass through the comet's coma.
彗发的内侧区域通常在地球上是观测不到的。
The inner part of a comet's coma is not usually observable from Earth.
这会产生可见的气氛或彗发,有时还会产生彗尾。
This produces a visible atmosphere or coma, and sometimes also a tail.
彗发的内侧区域通常在地球上是观测不到的。
The inner part of a comet's coma is normally not accessible from Earth.
但是彗星周围的大气层,或者说彗发,比木星还要大。
But the atmosphere around the comet, or coma, is bigger than Jupiter.
彗星继续接近太阳,彗发的直径可扩大到10万km。
When it reaches close to the sun, its coma develops that can stretch to 100,000 Km.
在大质量的彗发星系团中,这种剧烈的气体损失过程发生在许多星系中。
In the Coma cluster, this violent gas-loss process occurs in many galaxies.
彗发可能高达地球直径的15倍,而彗尾可能会拉伸一个天文单位。
Coma may be up to 15 times the Earth's diameter, while the tail may stretch one astronomical unit.
最终,冰会从彗星上燃烧,它将会是一个没有彗发或彗尾的金属岩石。
Eventually the ice will burn off of a comet andit will just be a metallic rock with no coma or tail.
在这个距离上,太阳风已经足够强大,可以将气体和尘埃吹离彗发,使尾巴增大。
The solar wind is strong enough to push dust andgas away from a comet to make a tail.
此外,影像也捕捉带着宽广彗尾和明亮彗发的麦克诺彗星(2007年大彗星)。
The scene also captures the broad tail and bright coma of Comet McNaught, the Great Comet of 2007.
彗发的长度可以达到地球直径的15倍,而彗星尾部的长度可以长达一个天文单位。
Coma may be up to 15 times the Earth's diameter, while the tail may stretch one astronomical unit.
熄火彗星是已经耗尽掉绝大部分挥发性冰,只留下一点的彗尾或彗发的彗星。
Extinct comets are those that have expelled most of their volatile ice andhave little left to form a tail or coma.
彗发和彗尾的物质极为稀薄,其质量只占总质量的1%-5%,甚至更小。
Coma and comet material is extremely thin, its quality only the total mass of 1 to 5%, or even small Bill Dunford.
例如,(60558)厄开克洛斯曾经显现出彗发,而现在也有彗星的名称,174P/厄开克洛斯。
Echeclus has displayed a cometary coma and now also has the cometary designation 174P/Echeclus.
当彗核被太阳加热时,这些气体升华并产生一种围绕着彗核的大气层,这被称为彗发。
When heated by the Sun,the gases sublimate and produce an atmosphere surrounding the nucleus known as the coma.
在这个距离上,太阳风已经足够强大,可以将气体和尘埃吹离彗发,使尾巴增大。
At this distance the solar wind becomes strong enough to blow the gas anddust away from the coma, enlarging the tail.
例如,(60558)厄开克洛斯曾经显现出彗发,而现在也有彗星的名称,174P/厄开克洛斯。
For example, 60558Echeclus has previously displayed a cometary coma and thus also has been given the cometary designation 174P/Echeclus.
熄火彗星是那些已经排出绝大部分挥发性冰,只留下一点的彗尾或彗发的彗星。
Extinct comets are those that have expelled most of their volatile ice andhave little left to form a tail or coma.
彗发的漫反射性质和它发出的光实际上可能使观察变得更加困难,特别是使用双筒望远镜或望远镜时。
The diffuse nature of the coma and its glow may actually make it more difficult to view, especially if using binoculars or a telescope.
对地表以下硬度的测量,再加上对温度的测量,将帮助科学家弄清楚这颗彗星彗发里的气体和尘埃如何形成。
The hardness of this sub-surface will, along with temperature measurements,help scientists to piece together how the comet's coma of gas and dust forms.
At that time Comet Iwamoto, sporting a green coma, was about 10 light minutes distant, while spiral galaxy NGC 2903 remained about 30 million light years away.
ALMA的精确分辨率可以在每一天甚至每小时的基础上,清楚地分解出这些团块迁入彗星彗发的不同区域。
ALMA's exquisite resolution could clearlyresolve these clumps moving into different regions of the cometary comas on a day-to-day and even hour-to-hour basis.
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