Celestial hemisphere:  Northern  ·  Constellation: Lyra (Lyr)  ·  Contains:  IC 1296  ·  M 57  ·  NGC 6720  ·  Ring nebula  ·  Ring nebula in Lyra
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Ring Nebula HDR w/ Celestron 8SE, Jeffrey Horne
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Ring Nebula HDR w/ Celestron 8SE

Getting plate-solving status, please wait...
Ring Nebula HDR w/ Celestron 8SE, Jeffrey Horne
Powered byPixInsight

Ring Nebula HDR w/ Celestron 8SE

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Acquisition details

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Description

It’s smallness in the sky is one of the reasons this image was a real challenge, as is its brightness.

The M57 is pretty dynamic in brightness, so I took and processed this image as an HDR image; lots of shorter exposures, lots of medium exposures, and lots of long exposures.

I also tried something new...using a planetary camera (tiny chip) for a deep sky object. I fashioned a homemade heat sink and fan cooler for the camera out of an old CPU cooler from a computer, and that kept the camera about 4°C cooler than it otherwise would have reached, but I’m not sure how much it actually helped.

Comments

Revisions

  • Ring Nebula HDR w/ Celestron 8SE, Jeffrey Horne
    Original
  • Final
    Ring Nebula HDR w/ Celestron 8SE, Jeffrey Horne
    B

Sky plot

Sky plot

Histogram

Ring Nebula HDR w/ Celestron 8SE, Jeffrey Horne