18th October 2004, 01:18 PM
Hubble Ultra Deep Field images
These pics were taken by the hubble last year. Its a ~11.5 day exposure of a area of sky the size of a grain of sand held at arms length. Amazing stuff.
18th October 2004, 01:35 PM
My God... how is that achieved without inducing star trails?
18th October 2004, 03:24 PM
18th October 2004, 04:19 PM
That's because the Hubble space telescope is in orbit around the earth, 600 km above the ground, and can be oriented to keep looking at a certain patch of space.
Originally Posted by RossChang
18th October 2004, 04:34 PM
"The image required 800 exposures taken over the course of 400 Hubble orbits around Earth. The total amount of exposure time was 11.3 days, taken between Sept. 24, 2003 and Jan. 16, 2004. "
18th October 2004, 04:55 PM
Opzzy... mistaken tat for the ground observatory...
Originally Posted by gooseberry
hmm... such precision.... amazing...
18th October 2004, 05:05 PM
great link! there're videos available as well, cool!