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sgl_imaging_challenge_2021_annual.thumb.jpg.3fc34f695a81b16210333189a3162ac7.jpg

M81 and M82, 5 years in a row


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I'm calling collecting data enough for this season.

5 years ago I put the DSLR for the first time at the back of a telescope and I took my first shots. Some of them were aimed at M81 and M82.

For the next 5 years I collected more data with various scopes, cameras, carried by many mounts.

The newest one is still fresh, I finished collecting RGB and Ha data for it this morning so more processing versions will come. I used for it also some Lum data I shot in 2019 with the large 200mm newton from home (for highlights only), Lum data I collected last year during the emergency state with a poorly corrected 102ED and some Ha with the 150mm newton. To these I added this year Lum shot through the same 102ED, a better 102ED and the 150mm newton improved with an aperture mask holding the primary mirror, totaling almost 17h of good (dark/dark-ish skies) Lum. And 1.5h each RGB and 4.5h new Ha last night. If you lost track of the data acquisition description, don't worry, me too. Quite a challenge to add the data together in the best way.

Starting with the newest, click for larger resolution:

2021, first version
M81-M82-2021-LHaRGB_p03_watermark.thumb.jpg.063b99e9886c13bed5f1bbb2f222d7c3.jpg

2020
M81-M82-2020.thumb.jpg.7bf9a0836ec2304db7de6d764f4a6ee5.jpg

2019
M81-M82-2019.thumb.jpg.96b75cdb8d08090258fbbaf7e13f05d5.jpg

2018
M81-M82-2018.thumb.jpg.2d9aadb0169e331a28fc50a2f03e5f2d.jpg

2017
M81-M82-2017.thumb.jpg.174dbde735295a97cfaac175ca9f0474.jpg

2016 - May
M81-M82-2016-05.jpg.968cf0bf32e55da14a557e31ea7c7e94.jpg

and 2016 - Feb, the first one
M81-M82-2016-02.thumb.jpg.eff1cbdecae8443d77273b6ba9242ca0.jpg

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I really like this as a project.

Interesting that you can actually tell how much closer we are getting to them each year too...🤣

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Thank you!

On 12/04/2021 at 12:53, michael.h.f.wilkinson said:

Awesome stuff. I started on this pair only last year, and this really inspires me to add a lot more data this year

Looking forward to seeing your results :)

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