M42 combining RGB and HA images a year apart.

I really like this image of the Orion Nebula. Using images shot in 2015 before my camera was astro modified with images from 2016 after the Canon 40d was modified allows me to add some blue oxygen colours back into the image that are missing in the HA image. On my wish  list is an Astronomik OIII- CCD clip filter which block light pollution and lets on blue oxygen light. The new filter should allow me to shoot say 30 subs using each filter then combine them in post processing.
This image contains 7 minute subs and 2 minute subs as the very bright central region is blown out in the longer exposure for the faint clouds.

Tadpole nebula IC410

The Tadpole nebula IC410 is a faint dusty emission nebula (magnitude 7.8) over 100 light years across.
Its found in the constellation of Auriga (the Charioteer) some 12,000 light years away and 4 million years old.
In order to get this image I shot 35 exposures of 6 minutes each (That's 3.5 hours).
I chose a moonless night so that the sky was as dark as possible.
The longer the exposure the more detail, and I wanted to pic up the two Tadpoles which name the nebula.
If you look closely just below the centre of the picture you can see the enormous tadpoles (10 light years long) where new stars are being born.

The Crab Nebula. Messier 1

On July 4th 1054 Astronomers in China Reported a star so bright it could easily be seen during the day for 23 days.
We now know that they were witnessing a Supernova which could be seen with the naked eye for almost 2 years. The exploding star is today still travelling outwards at over 3 million miles an hour creating the beautiful Crab Nebula in the constellation of Taurus. Its now 10 light years across and 6,300 light years away. What remains of the star that exploded is called the Crab Pulsar and can be found at the centre of the nebula. Spinning at 30 times a second its now a tiny Neutron star, 1.5 times the mass of our Sun crushed into an object just 6 miles across. Can you imagine that!!!!!
I find it hard.
No longer visible to the naked eye, binoculars will reveal a small smudge but a telescope and a dslr sensor can reveal some of its beauty.
The image was taken using only 36 minutes of data with poor seeing (that's when you look up and can only see the bright stars because of the moisture etc in the air) so I will be revisiting this object when conditions are better.