Galaxies and Clusters

Click on the images to see a larger version with description.

NGC 1275 and Perseus Galaxy Cluster (Abell 426) NGC 1275 and Perseus Galaxy Cluster M33 (Triangulum Galaxy) M33 (Triangulum Galaxy) M13 (Hercules Globular Cluster) M13 (Hercules Globular Cluster) M101 (Pinwheel Galaxy) M101 (Pinwheel Galaxy) NGC 2403 and NGC 2404 NGC 2403 and NGC 2404 IC 2574 IC 2574 M51 M51 (Whirlpool Galaxy) M63 M63 (Sunflower Galaxy) NGC 4244 NGC 4244 (Caldwell 26) NGC 4565 and NGC 4562 NGC 4565 and NGC 4562 NGC 4395, NGC 4399, NGC 4400 and NGC 4401 NGC 4395 and NGC 4399-4401 M94 M94 NGC 2903 NGC 2903

Monitor calibration

For optimal display, the monitor should be calibrated so that as many shades of the grayscale shown below are distinguishable. At least the 4% steps should be separated by every monitor. The 2% steps are visible on better monitors. To distinguish the 1% steps, a HDR monitor is required.

gray scale

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