Hubble captures awe-inspiring PHOTO of Triangulum galaxy that spans 19,400 light-years

Katie Ramirez
January 11, 2019

According to the US National Aeronautics and Space Administration (NASA), Triangle galaxy is located about 2.8 million light years away from the Earth and has a diameter of more than 19 thousand light years.

The most detailed image yet of a 40-billion star neighbouring galaxy has been captured by the Hubble Space Telescope.

AStronomers are now studying the data to see how Triangulum compares to our own Milky Way galaxy and the third large spiral in the Local Group, the Andromeda galaxy. The galaxy is usually visible as a faint, blurry object under dark-sky conditions. Despite the fact that the galaxy is a third the size of the object in the Local group, it is the smallest spiral galaxy. To be able to create the panoramic survey of the 40 billion years that make up the Triangulum Galaxy, Hubble's Advanced Camera for Surveys captured 54 separate photos and created one enormous mosaic.

In the past, star-formation histories in the Local Group have been measured one galaxy at a time, often using different analysis techniques.

This image is only a tiny part of the large wide-field image of the Triangulum Galaxy created by the NASA/ESA Hubble Space Telescope.

The spectacular vista is in fact a giant mosaic, formed from 54 separate images created by Hubble's Advanced Camera for Surveys.

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Triangulum Galaxy is also characterised by a huge amount of dust and gas and dust, which enables it to form stars at a rapid rate - about one solar mass in every two years. The Triangulum Galaxy also contains two orders of magnitude less than Andromeda.

Still, Messier 33 remains an important find, its abundance of gas clouds drawing astronomers to conduct this detailed analysis.

It also has at least an order of magnitude less stars than the Milky Way and two orders of magnitude less than Andromeda.

As the junior member of this trio, the Triangulum Galaxy provides the valuable comparisons and contrasts that only a close companion can.

During star formation, the clouds of gas and dust in galaxies are used to fuel growth. The latter is the second most luminous region of ionized hydrogen within the Local Group and it is also among the largest known star formation regions in the Local Group.

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