My attempts at astro imaging

The Rosette Nebula in Ha

This was taken on the 28th of December, I have wanted to grab another image of the Rosette for years but due to its large size I needed to wait till I got another short focal length refractor.  I did take 5 hrs of images in 20 min subs but something went wrong with the guiding after only 4 (That will teach me to check on progress!) so thats all this image is made of.  So I need to go back and get more Ha and also grab some RGB – This is in Ha as the moon was around, it also allows me to get a  good bit of contrast in the clouds of the Rosette.

The nebula then, the Rosette Nebula lies some 5200 light years from us, it’s not really clouds of course, the cloudy areas are hydrogen gas glowing in a deep red, the gas is excited by the light from the cluster of stars in the centre of the nebula.Star formation is also occurring in the region due to the stellar winds from the same stars.

Hopefully this is just a work in progress and the new year will bring some nice clear nights…..



2 responses

  1. Stuart

    Good image especially after just 4 subs are you using a DSLR or CCD details …?

    January 9, 2015 at 7:14 pm

    • Hi,

      It was taken with a QHY8 Cooled CCD – really helps to keep the noise down. Glad you liked the image!

      January 9, 2015 at 8:19 pm

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