Nebulae: wide-field

This category contains photos of nebulae with an apparent diameter larger than 10°. The images are early results from a Northern Sky Narrowband Survey that started at the end of 2018. A brief description of the survey can be found on the instruments page.

Any of these images show faint nebulae that haven't been cataloged before (which does not mean that they are unknown). A preliminary list of these objects can be found in a GitHub repository.

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

OIII arc in Gemini OIII arc in Gemini Milky from Perseus to Cassiopeia Milky from Perseus to Cassiopeia Milky Way in Cassiopeia and Cepheus Milky Way in Cassiopeia and Cepheus HII region around California Nebula (NGC 1499) HII region around California Nebula (NGC 1499) Milky Way in Cygnus Milky Way in Cygnus Milky Way from Vulpecula to Aquila Milky Way from Vulpecula to Aquila Milky Way from Scutum to Ophiuchus Milky Way from Scutum to Ophiuchus Orion region Orion region Milky Way from Taurus to Perseus Milky Way from Taurus to Perseus M33 to SH2-126 M33 to SH2-126 Milky Way from Monoceros to Gemini Milky Way from Monoceros to Gemini

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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