was used for the image colour data using narrow band filters, S11 for red, HA for green and O111 for the blue. The total exposure times were 60 minutes using a S11 filter. 80 minutes using a H Alpha filter and 30 minutes using an O111 filter.
Sunday, 22 January 2017
NGC2174, the Monkey head nebula
NGC2174. This is commonly named the Monkey head nebula. This bright emission nebula lies in the constellation of Orion at a distance of about 6,400 light years. I took this image under heavily light polluted clear sky conditions with stars only visible down to magnitude 4. I was using my ten inch F 4.8 reflector, an Atik 383L mono ccd camera with PHD auto guiding. 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 hubble palette
was used for the image colour data using narrow band filters, S11 for red, HA for green and O111 for the blue. The total exposure times were 60 minutes using a S11 filter. 80 minutes using a H Alpha filter and 30 minutes using an O111 filter.
was used for the image colour data using narrow band filters, S11 for red, HA for green and O111 for the blue. The total exposure times were 60 minutes using a S11 filter. 80 minutes using a H Alpha filter and 30 minutes using an O111 filter.
