I don’t want to repeat myself, therefore the description of the most famous nebula visible from the northern hemisphere can be found here.
The previous picture has some strange halo around the bright star Hatsya and I was thinking why. Recently, a similar picture came out of my telescope and I realized that this strange halo is caused by the frost on the secondary mirror. I manufactured a homemade dew shield and I don’t have these problems anymore.
This picture is, as usual, composed out of narrowband pictures. When I look at it I am still not happy, therefore I hope next year will be better weather and I will make a better picture.