Archive for the ‘Planetray Nebulae’ Category

NGC 7009 (Saturn Nebula) Spectrum

Posted by Paulo Cacella on 15th August 2010 in Nebulae, Planetray Nebulae, Spectroscopy
This is a typical planetary nebula. / / / /Here the synthetic spectrum / / / / / / / /And the Spectrum with the main OIII and H lines. / / / /