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However, in 2008 scientists studying images from Hubble calculated the galaxy's distance at nearly 11 million light-years away, about 4 million light-years farther than previously thought, meaning it is a member of the IC 342 group of galaxies. [2] [5]
Panoramic image of the center of the nebula, taken by the Hubble Telescope. This view is about 2.5 light years across. The Trapezium is at center left. Interstellar clouds like the Orion Nebula are found throughout galaxies such as the Milky Way. They begin as gravitationally bound blobs of cold, neutral hydrogen, intermixed with traces of ...
Later observations (by Hubble himself, among others) showed Hubble's belief to be correct and the S0 class was included in the definitive exposition of the Hubble sequence by Allan Sandage. [12] Missing from the Hubble sequence are the early-type galaxies with intermediate-scale disks, in between the E0 and S0 types, Martha Liller denoted them ...
Hubble's photo of the pillars is composed of 32 different images [16] from four CCD sensors [17] in the Wide Field and Planetary Camera 2 on board Hubble. [18] The photograph was made with light emitted by different elements in the cloud and appears as a different color in the composite image: green for hydrogen , red for singly ionized sulfur ...
Astronomers have released an image of the Milky Way that maps some of the largest structures in the galaxy, including nebulas and the galactic center.
Some parts of space are a little more crowded than others. The Arches Cluster, located 25,000 light-years from Earth, is currently the densest known star cluster in the Milky Way. For comparison ...
Hubble proved that many objects previously thought to be clouds of dust and gas and classified as "nebulae" were actually galaxies beyond the Milky Way. [4] He used the strong direct relationship between a classical Cepheid variable 's luminosity and pulsation period [ 5 ] [ 6 ] (discovered in 1908 by Henrietta Swan Leavitt [ 7 ] ) for scaling ...
According to recent studies, the Andromeda Galaxy lies in what is known in the galaxy color–magnitude diagram as the "green valley", a region populated by galaxies like the Milky Way in transition from the "blue cloud" (galaxies actively forming new stars) to the "red sequence" (galaxies that lack star formation). Star formation activity in ...