Saturday, 24 February 2018

Adding data to the cone and fox-fur nebula images

This image of the cone nebula contains old data with added H-alpha luminance data. The total exposure time of the added data was sixty minutes.



Saturday, 17 February 2018

NGC2264, the Fox Fur nebula

Here we have a cropped composition of NGC2264, the Fox Fur nebula with added H-alpha luminance. A total exposue time of four hours.




Saturday, 3 February 2018

NGC3580.

NGC3580. I took this image using Astronomik narrowband filters SII, OIII and H-alpha and I used the Hubble Palette for the colour data. The setup I was using was my ten inch f/4.8 reflector, a Vixen Atlux mount, 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 were 40 minutes for each filter.


Final image cropped

Thursday, 1 February 2018

B33 The Horsehead nebula

Filter Test. Here we have B33 the Horsehead nebula, imaged 30 degrees away from the full moon under clear sky conditions. The total exposure time was 2 hours and twenty minutes. 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 filter was an Astronomik H-alpha filter.


This is a combination of old and new data. The total exposure time was 5 hours.

Tuesday, 23 January 2018

NGC2264 The Cone nebula.

NGC2264 The Cone nebula. This is the southern region of the same cloud that contains the Fox Fur nebula, lying at a distance of about 2,700 light years in the consellation of Monoceros. I was using my ten inch, f/4.8 reflector, a Vixen Atlux mount, PHD auto guiding, an Atik 383L mono CCD camera and a set of Astronomik narrowband filters, SII, OIII and H-alpha. 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 for each filter was sixty minutes.

Hubble Palette + RGB data

Narrowband Hubble Palette

Narrowband luminance + RGB colour

Fox fur and the cone nebulae


Monday, 22 January 2018

NGC2264 The Fox Fur Nebula.

NGC2264 The Fox Fur Nebula. This cloud of nebulosity belongs to the same cloud that contains the cone nebula and the Chrismas tree cluster. It lies in the consellation of Monocceros the Unicorn at a distance of 2,700 light years. I was using my Ten inch F4.8 reflector, a Vixen Atlux Mount PHD auto guiding an Atik 383L mono CCD camera and a set of Astronomik narrowband filters. The filters I was using were SII, OIII, H-alpha and blue. 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 sky conditions on this particular evening were very good. Stars were visible down to magnitude five. The total exposure times were 90 minutes using a H-alpha filter, sixty minutes using an OIII filter, forty minutes using an SII filter and thirty minutes using a blue filter.

Narrowband + RGB


Narrowband luminance, RGB colour data


Hubble Palette


Foxfur Cropped



Sunday, 21 January 2018

NGC2244 The Rosette nebula.

NGC2244 The Rosette nebula. This hydrogen emission nebula is a star forming complex that lies in the constellation of Monoceros, 5,200 light years away from us. It covers an area of sky 1.3 degrees with a radius of about 65 light years. I was using my ten inch F4.8 reflector, a Vixen Atlux mount, PHD auto guiding and an Atik 383L mono CCD camera. The total exposure time was sixty minutes for each filter, capturing five minute sub frames with matching dark frames. The data were then combined with flat field frames to reduce the effect of vignetting in the final image. The filters I was using was a set of Astronomik narrowband filters, SII, OIII and H-alpha, using the Hubble palette for the colour data.



NGC 2244. This section of the Rosette nebula was taken under intermittent sky conditions, the sky was changing with clouds, so I was limited with the amount of imaging time. I used the camera on times-two bin mode, increasing the camera's sensitivity by four times. I captured five minute sub frames with dark frame and flat frames, managing to get a total exposure time of 15 minute for each filter.