SNAPSHOT: Hubble Takes Second-most Detailed Image Ever

By Alison Mackey | January 10, 2019 4:41 pm
triangulum galaxy

The Triangulum galaxy is seen here in the second-largest image ever taken by Hubble. (Credit: NASA, ESA, and M. Durbin, J. Dalcanton, and B. F. Williams (University of Washington))

Hubble just released its second-largest image ever: the Triangulum Galaxy, and it’s a stunner. While Andromeda has been holding the top spot since being imaged back in 2015, this ~665 million-pixel composite is nothing to sneeze at, clocking in at a staggering 34,372 x 19,345 pixels. All told that adds up to 665 million pixels.

Also known as Messier 33, 40 billion stars make up this spiral galaxy, which is faintly visible by naked eye under a dark sky as a small smudge in the constellation Triangulum (the triangle.) This image spans 14,500 light-years, composed of shots taken between February 2017 and 2018 by the famous space telescope’s Advanced Camera for Surveys. The Triangulum Galaxy is small by cosmic standards, at about half the diameter of the Milky Way and a quarter of the diameter of the Andromeda galaxy. Still, the astronomers estimate there are anywhere between 10 and 15 millions stars contained in this image.

Eat your heart out, David Bowman — this thing is FULL of stars!


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CATEGORIZED UNDER: Space & Physics, top posts
MORE ABOUT: cosmology, stargazing, stars
  • Uncle Al

    “taxonomic collecting” Things are named and grouped. Taxonomic collectors chase completion. They pursue bigger and better collections than their peers.


  • Kurt Stocklmeir

    the Milky Way acts like it has about 10 times more mass than people can find – some people say there is dark matter – the Triangulum galaxy acts like it has about 5 times more mass than people can find – the Milky Way is about 2 times more big than Triangulum – gravity gets stronger as it travels not linear – gravitons get more energy not linear as they travel – gravitons associated with the Milky Way need to travel about 2 times more distance as compared to gravitons associated with Triangulum and the Milky Way acts like it has about 2 times more dark matter as compared to Triangulum – gravitons have a not linear increase of energy as they travel – I think Triangulum has a little less mass than people think – it is simple to use all these things to know how fast gravity gets stronger as it travels Kurt Stocklmeir

  • Mike Richardson

    Like the Andromeda Galaxy (M31) nearby, M33 is also visible in most backyard scopes in a clear dark sky. The claim that it is visible to the naked eye is debatable. I’ve viewed it a few times with my 8-inch aperture Dobsonian telescope, though it is a good bit dimmer than Andromeda. It’s nowhere near as vivid and colorful as the amazing shots from Hubble, but viewing it from your own yard is still pretty cool when you consider that you’re looking at something millions of light years away.


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