Celestial hemisphere:  Northern  ·  Constellation: Ursa Major (UMa)  ·  Contains:  M 101  ·  NGC 5422  ·  NGC 5447  ·  NGC 5449  ·  NGC 5450  ·  NGC 5451  ·  NGC 5453  ·  NGC 5455  ·  NGC 5457  ·  NGC 5461  ·  NGC 5462  ·  NGC 5471  ·  NGC 5473  ·  NGC 5474  ·  NGC 5477  ·  NGC 5484  ·  NGC 5485  ·  NGC 5486  ·  Pinwheel galaxy
M101 : The Pinwheel Galaxy - Galaxie du Moulinet (NGC 5457), Jérémie
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M101 : The Pinwheel Galaxy - Galaxie du Moulinet (NGC 5457)

M101 : The Pinwheel Galaxy - Galaxie du Moulinet (NGC 5457), Jérémie
Powered byPixInsight

M101 : The Pinwheel Galaxy - Galaxie du Moulinet (NGC 5457)

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Description

The long season of clouds seems to be behind us in Paris (at least for a few nights :-) )

From my limited field of view on the skydome, I have no choice but to continue shooting galaxies !

This time I have shot M101 - Pinwheel galaxy.

Not the best picture due to bad use of my filter wheel, but I have learned from my errors (triggering a focus routine after a change of filter is important...).

But having shot a bit of H alpha to get the emissions from the nebulas within M101, I have used that to reduce my stars... again.

And I love my CEM70. Works well, though I only guide through a 120mm guidescope. Not enough to get very accurate guiding. I have to think about that.

Random info : I have used bin 1 for blue filter by mistake...

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