I don’t want to repeat myself, therefore the description on the most famous nebula visible from northern hemisphere can be found here.
The previous picture has some strange halo around the bright Hatsya star and I was thinking why. Recently similar picture came out of my telescope and I realized that this strange halo is caused by the frost on the secondary mirror. I manufacture home-made dew shield and I don’t have these problems anymore.
This picture is, as usual, composed out of narrow band 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.
|Telescope:||Newton 254/1000 mm|
|Focal length:||1000 mm|
|Autoguiding:||Orion Mini, TS 50/160 mm|
|Camera:||Moravian instruments G2 8300M @-30C|
|Filters:||Baader Ha, OIII|
|Exposure:||17xHa, 15xOIII, 10xSII 240 s, 10xHaOIII 60 s bin 1x1|