Core of Virgo Galaxy Cluster

Galaxies M65, M66 & NGC 3628

Flame Nebula NGC 2024 & Horsehead Nebula B33

Comet C/20002 T7 Linear

2/22/04

Canon 10D & Orion ED80 Refractor

by Gary Honis

All images were taken from my backyard deck observatory with an Orion ED80 APO refractor with a Celestron f/6.3 reducer providing an f/4.7 focal ratio. ED80 was piggybacked on 10 inch Meade LX200. Guide corrections were made only for the M65/M66 image with autoguiding done by the software GUIDEDOG using a Toucam webcam. Image acquisition was automatic using DSLR FOCUS. Skies were clear with moderate light pollution and the ambient temperature was 30 degrees Fahrenheit.

Core of Virgo Galaxy Cluster - Crop:

Sum stack of 27 one-minute exposures at ISO 1600. Unguided.

Core of Virgo Galaxy Cluster - Full Frame:

Same image details as above but full frame:

Leo Galaxies M65, M66 & NGC 3628 - Crop:

Adaptive Addition was used in Images Plus to stack of 36 one-minute exposures at ISO 1600 and 10 one-minute exposures at ISO 800. GUIDEDOG and Toucam webcam for autoguiding:

Leo Galaxies M65, M66 & NGC 3628 - Full Frame:

Same image details as above but full frame:

Flame Nebula NGC 2024 & Horsehead Nebula B33 - Crop:

Sum stack of 36 one-minute exposures at ISO 1600, 6 one-minute exposures at ISO 1600 and 8 one-minute exposures at ISO 3200. Unguided.

Flame Nebula NGC 2024 & Horsehead Nebula B33:

Same image details as above but full frame:

Comet C/20002 T7 Linear - 2/22/04

Exposures were short so were not guide corrected. Comet was setting fast so only got a few exposures.

Normalized Average combine was used in Images Plus to stack of 9 one minute and 3 two minute exposures at ISO 1600:

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