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The Dolphin nebula (Sh2-308): Following a most enjoyable viewing night at Fairwood, I returned home to find the skies were still clear over Llanelli, so with no moonlight to worry about, I managed to get a fair bit more OIII data on the Dolphin nebula to add to that taken a year ago. I still need a lot more data to help raise this objects faint signal out of the noise further, but the Dolphin is starting to take shape now! I collected around 2.5 hours of new data which I added to the 3.5 hours taken previously to make this 6 hour integration of SHO and RGB data which was stacked and processed in Pixinsight and Adobe Photoshop 2025. The Dolphin nebula is an area of ionised hydrogen lying 8 degrees below Sirius some 5,300 light years away which has a nebulous bubble of molecular oxygen lighting up a star preparing to go supernova.
The UFO galaxy (NGC 2683): I do like edge on galaxies, and last night I managed to get some 45 mins of red filtered data on this one for the first time imaging it. I hope to collect some green, blue, luminance and Ha data in the future to make a properly coloured image. NGC 2683 lies in the constellation of Lynx some 30 MLY away and its easy to see why it's nicknamed the "UFO" galaxy! Recently the Hubble Space Telescope imaged this galaxy (with a somewhat better image than mine!) and found that it contains around 300 globular clusters which is almost twice the number in our own galaxy.
Chris Bowden
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