IC443 The Jelly fish nebula. This patch of nebulosity is a supernova remnant that lies in the constellation of Gemini at a distance of about 5,000 light years. I was using my ten inch F 4.8 reflector, PHD auto guiding and an Atik 383L mono CCD camera. I captured five minute sub frames with matching dark frames and combined them with flat field frames to reduce the effect of vignetting in the final image. The total exposure times was ten minute fo each RGB filter, 15 minutes using an O111 filter and 60 minutes using a H Alpha filter . I used the narrow band data for the image luminance and the RGB data for the colour.
NGC1435 Meropes nebula. Lying at a distance of about 450 light years this faint patch of nebulosity surrounds the 4th magnitude star Merope, located in the open star cluster M45 the Pleiades. It covers an area of sky about half a degree, the size of the full moon with a low suface brightness of about 15 - 16th magnitude . This image was taken under very clear sky conditions with only a cresent moon .I was using ten F4.8 reflector, PHD auto guiding and an Atik 383L mono CCD camera.I captured five minute sub frames and matching dark frames and combined them with flat field frames to reduce the effect of vignetting in the final image. The total exposure times was 20 minutes using a red filter, 40 minutes using a green filter and 100 minutes using a blue filter.
