Future observations of stellar orbits have the potential for detecting post-Newtonian effects in the short-period stars and should probe the distribution of orbital parameters at larger radii, which is key to understanding star and cusp formation around a central supermassive black hole....
Viewed from a star in some other comer of the galaxy, Earth would be a speck, a faint blue dot hidden in the blazing light of our sun. While our neighbors Venus and Mars would reflect a fairly even glow, Earth would put on a little show. Earth"s light would brighten and dim as ...
But Betelgeuse isn't the only red supergiant in our galaxy. Others, like Eta Carinae, might erupt in the sky first. In a galaxy the size of the Milky Way, statistically there should be a supernova every 50 or so years, explained Graur. But we haven't seen one actually happen in 400...
a massive star somewhere in our galaxy 我们的银河某处,有一个大质量的星体 runs out of fuel. 把燃料用光了。 This happens after millions of years of heat and pressure 会有这种情况,是因为数百万年来,高热和压力 have fused the star’s hydrogen 将该星体的氢气融入到更重的元素当中, into heavier ...
What remains of the star that exploded just outside our galaxy in 1987? Debris has obscured scientists’ view, but two ofNASA’s X-ray telescopes have revealed new clues. Since astronomers captured the bright explosion of a star on February 24, 1987, researchers have been searching for the ...
literally touch your star and easily locate and track it at any time of the day. The Star Finder App helps you navigate the universe and shows you the beauty of the constellations and the stars in our galaxy. Learn more about the 88 constellations and several famous Landmark Stars along ...
There has not been a supernova in our galaxy since the invention of the telescope. While a 1987 explosion in a nearby galaxy gave astronomers plenty of valuable data, they are hungry for an even closer look.Eta Carinae has other unique features, and is the only star known to produce an ...
The size of our galaxy is only ten thousand times the distance to the nearst star and already that is two hundred thousand times the distance to the sun. 相关知识点: 试题来源: 解析 直译:银河系的大小是只有一万倍的距离到最近的恒星,而且以前的那个是20万倍的距离到太阳.活译:银河系的大小到...
Of course, this is just in our galaxy, the Milky Way. There are billions more galaxies out there, and trillions more stars. Stars are primarily made up of Hydrogen and Helium. This is the sane as the planets Jupiter, Saturn, Uranus and Neptune. Of course, this is the same as the Sun...
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