Horsehead Nebula - HaGB

Horsehead Nebula - HaGB, a photo by Mick Hyde on Flickr.

The Moon Southern Highlands - 020212 (reprocess)

The Moon Southern Highlands - 020212 (reprocess), a photo by Mick Hyde on Flickr.

Horsehead Nebula Mosaic (work in progress)

Horsehead Nebula Mosaic (work in progress), a photo by Mick Hyde on Flickr.

Copernicus in shadow (reprocess) 090305

Copernicus in shadow (reprocess) 090305, a photo by Mick Hyde on Flickr.

NGC2175

NGC2175, a photo by Mick Hyde on Flickr.

M34

M34, a photo by Mick Hyde on Flickr.

The Cone Nebula.

The Cone Nebula., a photo by Mick Hyde on Flickr.

California Nebula.

California Nebula., a photo by Mick Hyde on Flickr.

Comet Lovejoy - 13th Nov 2013

Comet Lovejoy - 13th Nov 2013, a photo by Mick Hyde on Flickr.

Comet processing in DSS

Load your pics into DSS, click check all then click to register them making sure that stack after registering is not selected. 

Once the pics are registered click on one of the light frames at the bottom to view the image, on the right hand side you will see some icons click on the comet one. 

Then using the mouse wheel zoom in to the pic and move the cursor over the centre of the core, left click to select, next click on the disk icon on the right to save it. You need to do this on all your light frames.

Now click stack checked pictures on the left of screen and within this click stacking parameters. Select comet and choose which option you want then click ok.

It should now stack aligned on the comet.

Hubble's Famous M31 VAR! plate.

Hubble's Famous M31 VAR! plate., a photo by Mick Hyde on Flickr.

The plate with identification number H335H ("Hooker plate 335 by Hubble"), is famous for having led to his discovery of the first Cepheid variable star in M31.

Plate image credit:- Carnegie Institution for Science