Thank you for your patience while we retrieve your images.
Uploaded 19-Aug-07
Taken 16-Aug-07
Visitors 290


378 of 388 items
Thumbnails
Info
Photo Info

Dimensions1200 x 800
Original file size432 KB
Image typeJPEG
Date modified16-Aug-07 23:23
Sadr region of Cygnus - 10° field

Sadr region of Cygnus - 10° field

My initial testing of the Hutech enhanced Canon XTi dSLR is very encouraging. I imaged the region surrounding Sadr in Cygnus. The visibility of the emission and dark nebulae surrounding Sadr is striking.

Some of the objects in this 10° wide field of view:
  • emission nebulae IC 1311 (above Sadr) and IC1318 (below Sadr)
  • The Crescent Nebula (small bright red circle located about 1/3 the way to the right of Sadr)
  • A portion of the Pelican Nebula along the left edge of the image below Deneb
  • A small but bright emission nebula Sh2-112 above Deneb and to the right
  • The Northern Coalsack dark nebula between the Pelican and IC 1318.

See also a 5° field of view version of this image, showing off the detail in the immediate area surrounding Sadr.

Imaging
  • Camera: Hutech-modified Canon XTi dSLR
  • Lens: Canon 70-200mm L zoom operating at 98mm f/5.6
  • Exposures: 51 x 58 secs
  • ISO: 800
  • Mount: Astrotrac portable equatorial on Manfrotto tripod
  • Image acquisition: ImagesPlus


Processing
  • Canon ZoomBrowser EX - convert RAW to 48 bit TIFF - Custom white balance, Neutral picture style.
  • ImagesPlus - calibrate using dark & flat frames, auto align (correlate, translate, rotate), stack images using Average combine (BP 4351, BG 29).
  • Corel PhotoPaint X3 - convert to 24 bit RGB jpg, moderate increase to saturation, reduce image size.