02 June 2019
 
KODF, The Hubble Deep Field in a wider context.

    
    


By  Kees Scherer
( www.flickr.com/photos/kees-scherer/

When the Hubble “stared at nothing for 100 hrs” in 1995 it’s WFPC2 camera used 4 different filters. 30.3 hrs of the HDF image was made using the “Red”(606 nm peak) filter at f 12.9.

I wanted to see what can be done today with a small refractor using the QHY16200 CCD with
 f5.5 and 41 hrs integration time using a red filter. See that tiny red HDF field annotation  in the middle?
The 800% “Blow up” inverse image at top center shows all the detail that can be extracted and
 I can find about 30 galaxies versus the 3000 in the Hubble image.
As reference 2 of the brightest Galaxies are marked in both images. But the Knight Observatory Deep field (KODF)
 image shows many Galaxy clusters, the largest at the Middle right of the image. Only 3 Galaxies in that cluster have a PGC
number and the "brightest" 2 are at 2.2 and 4.9 Billion Lightyears distance.
(The faintest galaxy in this image that i can identify is PGC30844770 at 8.4 Billion Lightyears)

246x600 seconds, Esprit 100 refractor.
Image dates: 30/11- 1,12,13,16,17,18,20,21,22,23/12 2017.
Software: Sequence Generator Pro, AstroPixelProcessor, Pixinsight.

Original FDH (inset) image by NASA and STScl, rotation and size reduction by Kees Scherer.
Knight Observatory, Tomar, Portugal.

 
 

Click HERE  to submit your pictures






AAPOD² is a creation of The Free Astronomical Society   © 2013 - 2019
webmaster@aapodx2.com