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Author Archives: Greg Parker
Aldebaran
Only 6 x 10-minute subs from last night, so pretty noisy, but at least it’s the first image since November 14th 2023, so a major landmark. 200mm lenses and the ASI 2600MC Pro CMOS cameras. Need to take some new … Continue reading
First Clear Night in Weeks.
A couple of nights back we had the first clear night in many weeks. This is such a rare event it deserves an entry all of its own. So, starting at 7 p.m. I began work on setting up the … Continue reading
Posted in mini-WASP Array, News
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The Perseus Double-Cluster and Stock 2
I just did a quick reprocess on this one and it looked nice enough to re-post. This is the famous Double-Cluster in Perseus, with the less famous Stock 2 (the stick-man lying on his side at top right). A 2-frame … Continue reading
Posted in Sky 90 and SXVF-M26C
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Picture of the Week
Picture of the Week is Greg’s 3 asterism in Leo seen almost dead centre in this image. The image comprises 14 x 12-minute subs taken with the 200mm lenses and M26C OSC CCDs. I first discovered this asterism whilst scanning … Continue reading
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Picture of the Week
For this week’s “Picture of the Week” I have chosen my favourite asterism, namely Kemble’s Cascade. Not only is this a superb star cluster in its own right, but it also has 3 very special stars closely associated with it. … Continue reading
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Picture of the Week
A regular visitor to this website made the valid comment that the Andromeda image has been the latest one to be shown for far too long. Why has it been up there for so long? Very simple really, I haven’t … Continue reading
M31 – the Final Cut
I just found another 6-hours of 40-minute subs of M31 taken with the Sky90 array, and I added this to the earlier composite. You can see the result above and it is virtually no different from the previous result. I … Continue reading
Composite Rosette Nebula
This image of the Rosette nebula is a composite using data from the 200mm lenses with ASI 2600MC Pro CMOS camera and Optolong filter, together with Hyperstar 4 data using an ASI 2600MC Pro CMOS camera and a UV/IR cut … Continue reading
A Maths Problem for You
Here’s a simple little maths problem for you to look at, if you like that sort of thing. For what value of x does the following equation hold true? x^n + 2.x^n+1 = x^n+3 Where x^3 is x cubed.
Posted in News, Projects
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Definitive M31
I sent a friend a low-res version of M31 and they asked if they could have the hi-res version to print out and put on their wall. Now it gets embarrassing – can’t find the hi-res version anywhere. So I … Continue reading