Overview of various factors of the overall composition with the Milky Way The Milky Way contains a bar-shaped core location surrounded by a warped disk of gas, dust and stars.[175][176] The mass distribution throughout the Milky Way carefully resembles the kind Sbc while in the Hubble classification, which represents spiral galaxies with fairly loosely wound arms.
依據希臘神話，銀河是赫拉在發現宙斯以欺騙的手法誘使他去餵食年幼的赫拉克勒斯因而濺灑在天空中的奶汁。另一種說法則是赫耳墨斯偷偷地將赫拉克勒斯帶去奧林匹斯山，趁著赫拉沉睡時偷吸她的奶汁，而有一些奶汁被射入天空，於是形成了銀河。
To give you an idea of what Meaning, a light-weight-yr is the distance that mild can travel in a single year, which happens to be approximately five.88 trillion miles. So, when you multiply that by a hundred,000, you’d get the space throughout our Milky Way galaxy. That’s a amount so huge it’s not easy to even imagine!
Foreseeable future telescopes and missions assure to expose much more. The James Webb Room Telescope will peer into dusty star-forming regions, while radio arrays will map the galaxy’s framework intimately.
《欽定古今圖書集成·曆象彙編·乾象典·天河部》，出自陳夢雷《古今圖書集成》
As an example, observations of a three-way galactic collision in 2022 using the famed Hubble Space Telescope gave some intriguing insights. The most important of the team, as it received into a good orbit with the opposite two, snagged some product with its reasonably more powerful gravity.
In astronomical exercise, the delineation of the galactic quadrants is predicated upon the galactic coordinate technique, which locations the Sunshine because the origin of your mapping method.[a hundred and fifteen]
Previously, these two galaxies, at all-around 2% of your mass in the Milky Way, were viewed as also compact to impact the Milky Way. Nonetheless, in a pc model, the movement of these two galaxies creates a dark subject wake that amplifies their affect within the greater Milky Way.[290]
To generally be much more certain, the Milky Way is usually a barred spiral galaxy, which means it's a central bar-formed straight framework composed of stars.
Nonetheless this shimmering light-weight is much more than just a visible marvel. It is just a cosmic town spanning 100 thousand mild-a long time, containing countless billions of stars, swirling alongside one another in a very graceful spiral sure by gravity and formed by forces we have been only starting to know.
In Meteorologica, Aristotle (384–322 BC) states that the Greek philosophers Anaxagoras (c. 500–428 BC) and Democritus (460–370 BC) proposed which the Milky Way may be the glow of stars in a roundabout way noticeable because of Earth's shadow, even though other stars acquire their light from your Sunlight, but have their glow obscured by photo voltaic rays.[72] Aristotle himself believed that the Milky Way was Component of the Earth's mawinbet upper environment, along with the stars, and that it absolutely was a byproduct of stars burning that didn't dissipate on account of its outermost place inside the ambiance, composing its wonderful circle.
A simulation published in 2011 suggested the Milky Way could have acquired its spiral arm structure as a result of recurring collisions Along with the Sagittarius Dwarf Elliptical Galaxy.[226]
A diagram from the Sunshine's spot within the Milky Way; the angles represent longitudes within the galactic coordinate program A galactic quadrant, or quadrant of the Milky Way, refers to 1 of 4 round sectors within the division in the Milky Way.
검색, 뉴스, 쇼핑, 숏폼 등 다양한 서비스와 콘텐츠를 한 곳에서 만날 수 있는