NGC 6960 and NGC 1805

NGC6960. On this particular evening stars were visible down to magnitude 4.7. The total exposure times were 40 minutes for each narrow band filter S11, O11 and HA . 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 telescope I was using was 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.

RGB

Cropped and eroded

Hubble palette

NGC1805 the Heart nebula.  These images were taken under bright moon light with stars only visible down to magnitude 3.5. I was using a 4 inch f/6.3 refractor, a Vixen Atlux mount, PHD auto guiding, an Atik 383L mono CCD camera and a set of Astronomik narrowband filters HA , S11 and O111 . 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 two images had total exposure times of 60 minutes using a H Alpha filter, 30 minutes using an O111 filter and 30 minutes using an S11 filter .

Combined images

Hubble palette

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