Visitors 4740
Modified 19-Mar-12
Created 18-Nov-09
234 photos
Natural colors are composed from narrowband data. Channels are balanced so, that image match to visible spectrum, H-a + 24%S-II=Red, O-III=Green and O-III + 15%H-alpha=Blue.
Images are mainly Red due the dominance of Hydrogen. Ionized Hydrogen glows light at wavelengtht of deep Red,656,6 nm. Principle is about same as in fluorescent tubes but much dimmer.
A study about the Colors: http://astroanarchy.blogspot.com/2009/11/colors-in-astro-images.html
Please, use a full screen and click the image, to see them as large as possible!
Images are mainly Red due the dominance of Hydrogen. Ionized Hydrogen glows light at wavelengtht of deep Red,656,6 nm. Principle is about same as in fluorescent tubes but much dimmer.
A study about the Colors: http://astroanarchy.blogspot.com/2009/11/colors-in-astro-images.html
Please, use a full screen and click the image, to see them as large as possible!
Cygnus Treasures
Cygnus Treasures labeled
Sharpless 119
IC 443
IC443 and NGC 2175 panorama
Ced214
Sharpless_205_natural
Cepheus_bicolor
Cepheus_Det
Cepheus nebula orientation map
18 panels mosaic of the Cygnus Nebulae
Simeis 147
Panoramic image from a constellation Taurus
Cygnus mosaic, eight panels
LDN 1622, a dark nebula in Orion
© J-P Metsavainio