Author Topic: NGC7217 from Calar Alto Observatory  (Read 1090 times)

Offline vicent_peris

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NGC7217 from Calar Alto Observatory
« on: 2016 October 14 15:55:55 »
Hi,

Here you have an image of NGC7217 in Pegasus from my astrophotography project at Calar Alto Observatory. It's an H-alpha/RGB composite made with the 1.23 meter telescope. The total exposure time is 19 hours with a 4Kx4K CCD camera. Here is the image:



And here at full resolution:

http://astrofoto.es/astrofoto/foros/NGC7217.jpg

Here you can see the isolated H-alpha emission:



This image was created with some of the techniques I teach in my intensive workshops to blend the narrow and broad band emissions.


Best regards,
Vicent.