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The center of our galaxy lies in Sagittarius. Under visible light, most of the stars are hidden in thick dust. This fuzzy dust becomes more and more transparent at infrared wavelengths. This 2MASS image covers an area of about 10 x 8 degrees (about the area of your fist with one arm extended), revealing a large number of hidden stars, all the way to the central cluster of the Milky Way.

This central core, in the upper left part of the enlarged image, is about 25,000 light years away from us, and is considered as a refuge for supermassive black holes. Stars here and along galactic plane turn red because of dust scattering; This is the same as the process of turning red when the sun goes down. The densest dust areas still appear in this mosaic. Several nebulae in the lower right corner are also obvious, including the Cat's Claw Nebula. In this spectacular field alone, 2MASS analysis software has identified and measured the characteristics of nearly100000 stars.

The center of our galaxy is Sagittarius in this constellation. Behind most stars in the visible light band, there are thick clouds and dust. This fuzzy dust becomes more and more transparent in the infrared band. This 2-quality image covers an area of about 10 × 8 degrees (about the area where your fist is held at the length of your arm), revealing countless hidden stars, penetrating the Milky Way in various ways to reach the central cluster.

This panorama contains the whole sky as seen from a two-micron all-day survey. The measured brightness of 500 million stars (points) is combined into three colors representing infrared light with different wavelengths: 1.2 micron blue, 1.6 micron green and 2.2 micron red.

The enlarged image centered on this center, which mainly appears at the upper left, is about 25,000 light years away from us, and is considered as evidence of shielding a super-large black hole. The red stars here and along the plane of the Milky Way are due to scattered dust, which is the same as the process that the sun looks red because of setting. Dense dust areas can still be seen in this mosaic picture. You can also see several nebulae at the lower right, including the Cat's Claw Nebula. 2mass analysis software has determined and measured the performance of nearly 654.38 million stars in this spectacular field.

The center of this photo is the core of our galaxy, facing Sagittarius. Red stars that appear to hover in the center of the Milky Way disk—many of which have never been observed before—track the densest dust clouds in our galaxy. The two fuzzy spots seen in the lower right quadrant are our neighboring galaxies, small magellanic cloud and large magellanic cloud.

This panorama covers the whole sky, and you can see a two-micron sky survey. Half of the measured brightness, 65.438+billion stars (points) have merged into infrared light with three different wavelengths: blue is 654.38+0.2 micron, green is 654.38+0.6 micron, and micron and red are 2.2 microns.

The center of this picture is the core of our galaxy, Sagittarius. Red stars look like disks of the Milky Way in flight-many of them have never observed them before-chasing dense dust clouds in our Milky Way. There are two weak anti-pollution phenomena in the lower right quadrant, namely, the galaxies around us, large magellanic cloud and small magellanic cloud.

A glimpse of the milky way galaxy

In the visible light band, most stars in our Milky Way galaxy are obscured by thick clouds behind the dust and gas of the Milky Way galaxy. But in the eyes of infrared rays, NASA's Spitzer space telescope, distant stars and dust clouds shine with unparalleled clarity and color.

In this panorama (middle row) measured by the mid-infrared plane of the Milky Way's heritage, the extraordinary project, the excessive star activity in the galactic plane of the Milky Way, is exposed in order to stay away from our Milky Way. This image spans 9 degrees of the sky (about the width of a fist held at arm length).

Red clouds indicate large organic molecules (mixed with dust), which illuminate the formation of nearby stars. The black fog of the patch is indestructible, and even Spitzer's ultra-sensitive infrared eyes are discerning. The overall image of white arc is a huge star incubator.

Problem supplement:1600,000 pixels, comprehensive and detailed, which can't be appreciated in this panoramic view, and it has not benefited all aspects (top and bottom lines). Bubbles, or holes, in the red clouds form a powerful outflow of funds and a huge group of stars. You can see the existence of hot hydrogen from the green color. A star cluster can also be regarded as a group of blue, yellow and green spots in some red nebulae or stars forming clouds. In contrast, there are many examples of young stars in this montage photo, and astronomers have also seen an object called a planetary nebula (first row, middle). This nebula is the last dying star, similar to the sun. Its outer layer is blown into the sky, leaving a charred star with the so-called white dwarf at its core.

Although this panoramic image captures a wide range of galaxies, it is only a glimpse of 7.5% primary schools in the survey, and it will image most star-forming areas in our galaxy.