APOD
Astronomy Picture of the Day
Discover the cosmos! Each day a different image or photograph of our fascinating universe is featured, along with a brief explanation written by a professional astronomer.
Behind CL1358+62: A New Farthest Object
Explanation: What if we could see back to the beginning of the universe? At one tenth the universe's present age , we might see galaxies forming . But what did galaxies look like when they were forming? These questions took a step toward being answered yesterday with the release of analysis of a Hubble Space Telescope (HST) photograph of the most distant object yet discovered. Pictured in the box above, this galaxy appears to us - billions of years later and across the universe - as a faint red smudge. In technical terms, this galaxy lies at the record redshift of z=4.92. Practically all of the yellow-white objects in the photograph are galaxies in a nearby cluster which together act as a lens in amplifying the light from the ancient galaxy. A follow-up picture by the ground-based Keck Telescope actually measured the distant redshift.
| Date | July 31, 1997 |
|---|---|
| Credit | Credit: M. Franx (U. Groningen) & G. Illingworth (UCSC), WFPC2, HST, NASA |
| Authors & editors: | Robert Nemiroff (MTU) & Jerry Bonnell (UMCP) |
| A service of: |
ASD at NASA / GSFC, NASA Science Activation & Michigan Tech. U. |



