Horsehead Nebula

kingkong · Post by **kingkong** » Sat Dec 08, 2007 2:09 pm

thanks jeff. i figured i'll need to get rid of the vignetting too... i'll try to use a gaussian blur emulated flat field frame too.
but i guess a good image needs to start from acquisition. so i'll try that too.

Meng Lee · Post by **Meng Lee** » Sat Dec 08, 2007 3:25 pm

You can reduce the vignetting by using a scope whose illumination circle is wider. For the image processing situation, I find Croman's tool very effective.

amin7074 · Post by **amin7074** » Sun Dec 09, 2007 2:28 am

hi Kingkong,
Saturday night the sky was good at around 8.00pm here,thought of doing observation with Weixing....everything ready to go.... :x :x :x at 10.00pm onward the sky change it's mood,and here comes the rain....

.Get stranded and bored at home I saw your pic done by Aquillae.Can't resist to try out your image with PixInsightLE played around with it and here is the result....... :oops: :oops: hope you don't mind this ok.

Post by **Airconvent** » Sun Dec 09, 2007 12:47 pm

amin7074 wrote:hi Kingkong,
Saturday night the sky was good at around 8.00pm here,thought of doing observation with Weixing....everything ready to go.... :x :x :x at 10.00pm onward the sky change it's mood,and here comes the rain.... .Get stranded and bored at home I saw your pic done by Aquillae.Can't resist to try out your image with PixInsightLE played around with it and here is the result....... :oops: :oops: hope you don't mind this ok.

Hi Amin7074,
Good effort but I think image is over processed already. The horsehead is no longer obvious in the picture. This effect is similar to those found in some of the point-and-shoot cameras in which the manufacturers use aggressive algorithms to remove noise from their images. Try to cut back until the horsehead becomes more define.
Cheers