Hello,
Please open the following link for the image of NGC7000, north America nebula:
http://bareket-astro.com/BAREKET_GALLERY/in.scope/src/9.jpg
15" f/2.8 Custom Astrograph, ST8XE, A.Don Ha,OIII,SII filters. Hubble plate.
Lum Exposure time = 6X8 min.
Ido.
Bareket observatory, Israel.
Please open the following link for the image of NGC7000, north America nebula:
http://bareket-astro.com/BAREKET_GALLERY/in.scope/src/9.jpg
15" f/2.8 Custom Astrograph, ST8XE, A.Don Ha,OIII,SII filters. Hubble plate.
Lum Exposure time = 6X8 min.
Ido.
Bareket observatory, Israel.
http://bareket-astro.com/en.html