Tuesday 4 October 2022

The Elephant Trunk nebula and the Soul nebula

IC1396 The Elephant Trunk nebula. This image was taken under hazy sky conditions through high cirrus clouds. Stars were only visible down to magnitude 4.   I  was using my set of Astronomik narrowband filters HA , O111 and S11. The telescope I was using was a 4 inch f/6.3 refractor mounted on a Vixen Atlux mount with PHD auto guiding. The camera was an Atik 383L mono CCD camera  set on times one bin mode. 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. Total exposure times of the Elephant trunk nebula;  75 minutes using a H Alpha filter, 35 minutes using an O111 filter and 25 minutes using an S11 filter.

The Elephant trunk nebula


IC1848 The Soul nebula. This image was taken under clear sky conditions using a 4 inch f/6.3 refractor , a Vixen Atlux mount, PHD auto guiding, a set of Astronomik narrowband filters 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 were 40 minutes using a H Alpha filter, 20 minutes using an O111 filter and 20 minutes using an S11 filter.

The Soul nebula