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nebulae造句
1, Nebulae contain very large amounts of ionized gas. 2, You can see nebulae in the clear summer sky. 3, The size of the nebula at this stage is inversely proportional to its mass. 4, Explosions flared like novas inside a dust nebula. 5, These red giants were probably close neighbours of the infant sun and the ejected matter fell into the solar nebula. 6, According to present-day ideas, a star begins its career by condensing out of a cloud of dust and gas known as a nebula. 7, The most celebrated of them is M57, the Ring Nebula in Lyra. 8, By sheer coincidence Kappa Crucis lies at the edge of the dark nebula known as the Coal Sack. 9, The nebula is nearly 50 light-years in diameter, and may owe much of its illumination to Deneb. 10, Accurate recordings of nebulae, comets and solar protuberances now extended the iconography of the natural world. 11, As before, the star condenses out of a nebula, heats up, and begins to shine by the hydrogen-into-helium process. 12, Then, for a relative blink of about 1, 000 years or less, the star becomes a planetary nebula. 13, My collected works rendered the Horsehead Nebula, goofy space cruisers, robots, and Saturn. 14, A nearby nebula, orange and pink, was the lurid gaseous residue of an explosion. 15, The spiral nebulae were scratches left by the grinder. 16, Planetary nebulae are a type of isolated gaseous nebulae possessing a fair degree of bilateral symmetry. 17, Some nebulae appear to be completely engulfed by exceedingly large molecular clouds. 18, He proved wrong those who believed nebulae lay inside the Milky Way. 19, Many people equate focal ratios with image brightness,[http:///nebulae.html] but strictly speaking this is only true when taking pictures of "extended" objects like the Moon and nebulae. 20, Today's also presents the easternmost belt star, Alnitak, at the bottom right of the field, surrounded by the well-known Horsehead and Flame nebulae. 21, When you look up into the heavens with a telescope, you see many nebulae whelloch are like, or approximately like, the perfectly balanced spiral nebula whelloch you see edgewise in Fig. 23. 22, The tiny but intriguing yellowish arc visible near the blue nebulae marks young variable star R Coronae Australis. 23, These sources are generally viewed in projection against radio nebulae representing the remnants of supernova outbursts. 24, One of the most notable of these dark absorption nebulae is a cloud toward the constellation Ophiuchus known as Barnard 68, pictured above. 25, Astronomical images of the well-known Pleiades often show the cluster's alluring blue reflection nebulae, but they are washed-out here in the bright moonlight. 26, Precise thermodynamic equilibrium may never be achieved in a microscopic realm within gaseous nebulae. 27, Coming in third, yet another ultra fast Chinese computing machine called Nebulae. 28, Hurtling through a cosmic dust cloud a mere 400 light-years away, the lovely Pleiades or Seven Sisters star cluster is well-known for its striking blue reflection nebulae. 29, Ever since astrophotography got its start in the late 1800's the two nebulae have been photographed. The Hubble Space Telescope has captured some spectacular images. 30, You can use them to see the stunning pair of nebulae known as the Trifid and the Lagoon.