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Evolution of M1 pulsar shockwaves on 2 months and half

xs_man

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Evolution of M1 pulsar shockwaves on 2 months and half
« on: March 09, 2017, 01:46:13 PM »
A new challenge with short exposure technique : trying to show the evolution
of the shockwaves generated by M1 central pulsar (the shockwaves, not the
expension of all the nebula, needs several years to be obvious).  ;)

Here is the fabulous Hubble Space Telescope animation in Ir and UV wavelength 
during 6 months :

https://www.youtube....h?v=O5u5nXZqYq0

More interesting for amateurs, this animation during 2 years and half with
images more 'terrestrial' :

http://www.faulkes-t...e.com/node/1691

http://www.faulkes-t...e.com/news/1688

Here I have only 2 images taken with 2 months and half between them. Weather
is against me !  :(

I try to have an equilibrium during the processing of the 2 pictures, not easy.
Processing have to be enough strong to show the structures of gas but without
generation of artifacts. Moreover the second picture was taken in worse seeing
conditions than the first one. So the sharping is a little more important.

The result surpised me ! I was not expecting something so obvious on this
reduced duration with a 'little' 300 mm amateur telescope. M1 is alive !


Setup :
--------

Newtonian Orion Optics F/D 5.3, on sur EQ-6 mount.

Merged image December 1st and 10th 2016:
--------------------------------------------
QHY5III 290 M without filter, directly to focus point.
1.5 seconds exposure.
(3439 + 3219) Raw images planned on 2 nights.
Darks.

Merged image February 24/25th 2017 :
-------------------------------------
QHY5III 290 M without filter, directly to focus point.
1 second exposure.
Gain=43.
5550 Raw images.
Darks.

Registration with DeepSkyStacker
Processing and post-processing avec Iris et Photoshop.


Merged image December 1st and 10th 2016 - reduced to 90% :




Merged image February 24/25th 2017 - reduced to 90% - link (500 Kb limitation) :


 

And now the animated Gif :



Albéric