Celestial hemisphere:  Northern  ·  Constellation: Cassiopeia (Cas)  ·  Contains:  IC 1795  ·  IC 1805  ·  NGC 896
C022 By Jerry Keith "Challenge 22 of Yahoo Group Digital Astro-Image-Processing-Heart Nebula, Steve Gallenson
C022 By Jerry Keith "Challenge 22 of Yahoo Group Digital Astro-Image-Processing-Heart Nebula
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C022 By Jerry Keith "Challenge 22 of Yahoo Group Digital Astro-Image-Processing-Heart Nebula

Equipment

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Acquisition details

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Description

Jerry has kindly given permission for members to post the image to other sites as long as credit to him and to the list are given. Please include links to the group(https://groups.yahoo.com/neo/groups/dslr_astro_image_processing/info) and to Jerry’s web site at http://www.theconstellationranch.com/ .

Jerry’s image is over nine hours, yes that is 9 hours, of integration taken from a Bortle 1 sky with good seeing. The image details are as follows:

Camera: modded Canon 1000D

Telescope: Astro Tech AT 65EDQ

Focal Ratio: f/6.5

Mount: Takahashi EM200 Temma 2M

Guider: Orion Mini Autoguider

Exposure: 7.91 hours (95 * 300 second subs) at ISO800, calibrated with darks only

Comments

Sky plot

Sky plot

Histogram

C022 By Jerry Keith "Challenge 22 of Yahoo Group Digital Astro-Image-Processing-Heart Nebula, Steve Gallenson