世界各地有許多創造天地的神話圍繞著銀河系發展出來。很特別的是，在希臘就有兩個相似的希臘神話故事在解釋銀河是怎麼來的。有些神話將銀河和星座結合在一起，認為成群牛隻的乳液將深藍色的天空染白了。在東亞，人們相信在天空中群星間的霧狀帶是銀色的河流，也就是所謂天河。
Due to the fact they are no more in a position to cease the gravitational collapse, they shrink into a gravitationally potent object that could warp time and space all over it a lot of that gentle now not can escape.
The Milky Way is a considerable spiral-shaped technique of around 400 billion stars, which include our Sun, bound with each other by gravity. The Place in between stars is generally stuffed with dust and fuel, and within the incredibly heart of this system lies a supermassive black gap. This method is named a “galaxy”.
We've got only started to examine the billions of planets it harbors. The behavior of Sagittarius A*, the procedures driving star formation, and the final word destiny from the galaxy continue being Lively frontiers of study.
When the arms from the Milky Way will surely be ripped up by this process, individual stars are somewhat Safe and sound given that the spaces amongst them are rather big. Quite simply, Will not try to look for star collisions, as They are going to be practically non-existent.
By way of example, observations of a three-way galactic collision in 2022 utilizing the famed Hubble Place Telescope gave some intriguing insights. The most important in the group, because it obtained into a good orbit with one other two, snagged some materials with its fairly more powerful gravity.
There are many methods being used in astronomy in defining the size of the galaxy, and every of these can produce various success with respect to each other. The most commonly used approach will be the D25 standard – the isophote where by the photometric brightness of a galaxy inside the B-band (445 nm wavelength of light, inside the blue Portion of the visible spectrum) reaches 25 mag/arcsec2.[121] An estimate from 1997 by Goodwin and others in contrast the distribution of Cepheid variable stars in seventeen other spiral galaxies to the ones in the Milky Way, and modelling the connection to their surface brightnesses.
If you could increase superior previously mentioned the Milky Way and glimpse again upon it, you'd probably see a shocking barred spiral galaxy—its central bar glowing warmly with tightly packed stars, its majestic arms curling outward like cosmic ribbons.
Although the Milky Way is visible yr-round, its breathtaking Main is obvious in between March and October — to find out it, you’ll have to have darkish areas with small light-weight pollution. To easily examine and Track down the objects with the Milky Way from the night sky, utilize the free Sky Tonight application.
Researchers will use Rubin facts to help you notify the Tale of our possess galaxy better than at any time, and to map the historical past on the Milky Way.
With the very core with the Milky Way lies its most mysterious inhabitant: Sagittarius A*, a supermassive black hole by using a mass about 4 million periods that of your Sun.
There's also proof the Milky Way collided with numerous smaller galaxies all through its evolution. In 2018, a workforce of Dutch astronomers discovered a gaggle of 30,000 stars going in sync through the Sunshine's community in the opposite course to the remainder of the stars in the data set.
Everything else within the galaxy revolves all-around this potent gateway to nothingness. In its fast environment is usually a tightly packed region of dust, gasoline and stars called mawinbet the galactic bulge.
Planets of your solar system do not orbit within the plane from the galaxy but are tipped by about sixty three levels.