File:Hubble stars.jpg: Difference between revisions

Hubble

http://www.greenpolicy360.net/w/Hubble

Hubble & Sloan Digital Sky Survey III (SDSS-III)

http://www.greenpolicy360.net/w/File:1.2-million-galaxies-map-slice.jpg

https://www.sdss3.org/surveys/

https://www.sdss3.org/science/

https://www.sdss3.org/education/

1.2-million-galaxies-map-slice.jpg‎ (800 × 600 pixels, file size: 326 KB, MIME type: image/jpeg)

Each dot in the picture at top indicates the position of a galaxy.

The image covers about 1/20th of the sky, a slice of the universe 6 billion light-years wide (thus we see some of these galaxies 6 billion years into the past), 4.5 billion light-years high, and 500 million light-years thick.

http://earthsky.org/space/1-2-million-galaxies-in-3d

July 2016 - The largest three-dimensional map of our universe so far. It’s a map of 1.2 million galaxies over a quarter of the sky and over a volume of space of 650 cubic billion light-years.

Sloan Digital Sky Survey -- https://www.sdss3.org/