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Dylan O'Donnell
1,686 followers -
Astrophotographer - Art, Nature, Music & Technology nerd - Byron Bay, NSW Australia
Astrophotographer - Art, Nature, Music & Technology nerd - Byron Bay, NSW Australia

1,686 followers
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Finally, the fidget spinner video you've been waiting for since May 2017.

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Here's a summary of my life since I walked into a store and walked out with my first +Celestron telescope on a whim 3 years ago. The earliest work at the top and most recent at the bottom. Nebulae are my favourite but I like all kinds of targets and haven't really even scratched the surface. It's big, y'know? #starstuff
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In case any one was wondering about CCD vs Cooled CMOS in astrophotography - Sony has announced it is discontinuing CCD production by 2020. I guess the war is over before it begun!

http://www.imperx.com/latest-news/sony-discontinues-ccd-image-sensors/

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Anyone else step outside tonight around Northern NSW? Still and clear, with the galactic core rising early in the evening. A fingerprint smudge on my lens accidentally causes a few of the bright stars to flare here, particularly Saturn (which isn't a star, of course). There was a distinct red glow on the horizon but I don't think it's arora activity. Possibly thin cloud and/or Earth's own airglow. #astrophotography 
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Dr Alan Duffy voiced this amazing video invitation to our space weekend in Byron Bay - you should totally come :) Tickets at www.starstuff.com.au 

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Oxygen in the great Carina nebula! I imaged this last night under perfect conditions in record time (82 x 60s total) with the usual 3 narrowband filters. Using the PHP/GD online narrowband preview tool I developed recently (link below) I decided the Hubble palette was the most compelling as the doubly ionised Oxygen spewing from the core is really brilliant and not normally so visible against the normally-red Hydrogen, seen here in the green areas.

Speed of acquisition due wholly to the Celestron RASA which exposes at F2. Also using the QHY9M, Baader highspeed filters and Celestron CGX mount. #astrophotography

http://deography.com/tmp/test/index.php?ha=uploads/ha2017MayTue05086254.jpg&sii=uploads/sii2017MayTue05086254.jpg&oiii=uploads/oiii2017MayTue05086254.jpg
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Little animation I neglected to post earlier when Jupiter was at opposition last month. About 52 minutes rotation total. A few frames missed due to cloud and some slight rotation of the fov caused by slippage of my camera as the telescope moved ... it's not too bad though all things considered! You can see Io and should be able to see how Jupiter is far from a perfect sphere, bulging at the equator .. much like myself this week after too much beer and candy. Celestron 9.25" Edge Hd and 2.5x televue + zwo 174mm #astrophotography #celestronrocks #youresa #universetoday #bintel #ig_astrophotography #jupiter #byronbay #nsw #australia #opposition #zwo 
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I've created an online tool that will take 3 greyscale images in narrowband (ha, sii & oiii) and show you all possible permutations in real time. Check it out at http://deography.com/tmp/test ! :) 
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Thackeray's Globules!
Thackeray was the last name of the guy who noticed these little dark patches in 1950. If you look closely at the biggest dark patch you might see it’s actually two – one further away in the distance. 1 light year in fact. To give you an idea, the Voyager satellite which has just left our solar system will take about 25,000 years to have travelled 1 light year. That one dark blob (which is two) you’re looking at, is separated by that much!
They are the stuff stars are born from if they get dense enough, otherwise they may become fuel for one of those baby blue ones :)
45 x 2m exposures taken tonight in Ha (90 mins total) + 30mins of RGB from RASA session a few weeks ago. Pretty quick and dirty! The trade-off are the colour halos on the RGB layer which has to be upsampled to match the Ha resolution during registration. But it’s a small sacrifice to turn around an image like this with only 2 hours total integration. The lepus focal reducer causes some minor coma on one edge.
C9.25″ Edge HD / Lepus 6.3 Reducer / QHY9
C11″ RASA / QHY12
CGX Mount
PixInsight / Photoshop
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NGC 3324 - The Nebula with a Face
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Can you see it? The round face with the nose to the right? The common name for this one is the Gabriela Mistral Nebula as some think the face looks like a Chilean poet of the same name.

While this image is taken in true colour, narrowband versions reveal much nicer structure to the energised “bubble” of emission nebula being lit up by the open cluster of stars within. This object is fairly bright and beautiful but doesn’t get a whole lot of attention because it’s next to the greater Carina nebula, which is nuts.

Taken last night in one good run, 120mins in Ha and 40 mins in RGB using the Celestron 9.25″ Edge HD with F6.3 Focal Reducer. #astrophotography 
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