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- Apathetic Retiree
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Hubble Takes Gigantic Image of the Triangulum Galaxy
ESA Hubble Photo Release | 2019 Jan 07
Triangulum Galaxy Shows Stunning Face in Detailed Hubble Portrait
The NASA/ESA Hubble Space Telescope has captured the most detailed image yet of a close neighbour of the Milky Way — the Triangulum Galaxy, a spiral galaxy located at a distance of only three million light-years. This panoramic survey of the third-largest galaxy in our Local Group of galaxies provides a mesmerising view of the 40 billion stars that make up one of the most distant objects visible to the naked eye.
This new image of the Triangulum Galaxy
— also known as Messier 33
or NGC 598 — has a staggering 665 million pixels and showcases the central region of the galaxy and its inner spiral arms. To stitch together this gigantic mosaic, Hubble’s Advanced Camera for Surveys (ACS
) needed to create 54 separate images.
Under excellent dark-sky conditions, the Triangulum Galaxy can be seen with the naked eye as a faint, blurry object in the constellation of Triangulum
), where its ethereal glow is an exciting target for amateur astronomers. ...
NASA | STScI | HubbleSite | 2019 Jan 07
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- 4725 Å
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Great portrait to be sure, but I am unhappy with the colors. M33 looks quite orange in the new Hubble picture. But the B-V index of M33 is 0.55, making the overall light of this galaxy bluer than the Sun.
Compare the picture of M33 (left) with an ESA/Hubble picture of M81 (right). The B-V index of M81 is 0.95, making the galaxy yellower than the Sun. But in the pictures, M33, which is bluer than the Sun, looks more orange than M81.