Website For Universe map, and Matter Totals

[nick1o2]

Just for some observation, is there any good "maps" of the universe? like nothing detailed but shows the hemispheres.

Also is there any website which show totals of matter in the universe, and how it changes when you go to different parts of the universe?

 

[bapowell]

Do a google image search for SDSS (Sloan Digital Sky Survey). For example, here is the distribution of galaxies in (parts) of the northern and southern celestial hemispheres: http://www.sdss3.org/press/images/20110111.orangespider.jpg

 

[nick1o2]

Thanks!

 

[Bandersnatch]

You may find this application useful:
http://www.amnh.org/our-research/hayden-planetarium/digital-universe

As it says on the tin, it's a free planetarium software released by Hayden Planetarium. It's a powerful visualisation tool, if with a bit user-unfriendly interface.

You'll want to run the "extragalactic" batch file.

It can show data from a number of surveys and calalogues, including Abell, 2MASS, Sloan, WMAP and others. You'll find the complete list in the user manual under Extragalactic Atlass->Data Groups section, together with brief description of what they are, as well as reference links.

 

[pmacias]

I can recommend the NASA website for a comprehensive map of the observable universe. This map, called the Hubble Ultra Deep Field, was created using data from the Hubble Space Telescope and shows a detailed view of the universe in all directions. Additionally, the European Space Agency's Gaia mission has also created a map of the Milky Way galaxy that includes the distribution of matter within it.

In terms of total matter in the universe, there are ongoing efforts by scientists to measure and understand the distribution of matter on a larger scale. The European Space Agency's Planck mission has provided valuable insights into the distribution of dark matter and ordinary matter in the universe. However, it is important to note that our understanding of the universe is constantly evolving and there may not be a single definitive answer to this question.

Overall, while there are resources available for understanding the distribution of matter in the universe, it is important to keep in mind that our understanding is still limited and subject to ongoing research and discoveries.