Picture of the Week

The Gamma Cass/Pacman region captured with the 200mm lens array. This needs a lot more exposure time to bring out more of the Gamma Cass nebulosity.

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Picture of the Week

From Sadr to the crescent nebula. A 200mm lens image incorporating RGB and dual narrowband data.

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Vega From Last Night

Managed to get 14 x 3-minute subs with the 200mm lenses on Vega last night after a LONG and weary battle setting up. Realised that the head amplifier has probably given up in M26(1) camera and that led to all the grief. Just as well I just bought 3 x ASI 2600MC Pro CMOS cameras from First Light Optics (with a good discount for 3-off, thank you very much FLO) as it looks like the M26Cs have had their day.

So the next long upgrade on the array will be to fit the 3 x 2600MC Pro cameras to the 3 x Sky90s, get the lot aligned and collimated, and then to fit the 3rd 200mm lens rig to the top plate to join the other 2 lenses. This is likely to take some time, but I will do it in bits, so that I always have a set of imagers ready to go.

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Picture of the Week

Bright star Denebola taken with the Hyperstar 4, 30-subs at 150-seconds per sub.

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All Change Again on the Imaging Array

So what’s he doing now, and why is he mucking around changing things already? Well I am unhappy with the mounting arrangement of the third 200mm lens in the old Sky90(3) slot. So what’s the problem? The geometry restriction of the slot means that one set of adjusters needs to be on the lens, while the other set of adjusters needs to go on the camera. This means when you screw up the adjusters to get alignment, there is a differential stress between the lens and the camera. This makes collimation adjustment (using the front plate screws on the 2600MC Pro) somewhere between difficult and impossible. So what am I going to do now? I’ve bought some bits of hardware which will allow me to fit the 3rd 200mm lens between the other 2 lenses on the top plate (the spotting scope will move onto a side panel). What I don’t know is whether the new lens mounting arrangement will introduce flexure or not. The only way to find out will be to do the experiment. Stay tuned in. I will be putting the 3rd Sky90 back into its old slot and getting the computer connected up and hopefully finding its old Robofocus autofocus settings for FocusMax, or I’ll have all the fun and games of getting that going again. I will also order a 52mm duo band filter for the 3rd Sky90 so I can do narrowband on all 3 (the other 2 are already set up for this). Anything else? Well yes of course I will need a new computer, keyboard, mouse and monitor for the new added system. That’s no problem, but finding some space in the jam-packed observatory just might be.

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Complete Pleiades Reprocess

I wanted to make sure I had stacked the 38 x 40-minute subs of Pleiades data properly, so I went right back to the RAW FITS files and did it all again. I think I did stack the data properly, but I think this result is slightly better, so maybe my processing has improved a bit.

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Composite Altair Region

I combined an earlier 2-frame mosaic of the Altair region with the recent single-framer, both taken using the 200mm lenses and ASI 2600MC Pro CMOS cameras, and this is the result. Probably no more to be done here.

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Pleiades Test Shot

Got 2/3rds of the way through setting up the 200mm lenses last night, and this is just 9 x 5-minute subs on cameras 3 & 4 on the Pleiades. For such a short exposure time I am pretty pleased with the result. This image is a GINORMOUS crop to just the Pleiades region. Last bit of fine tuning to do is to get camera 5 at the right rotation angle.

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First One of the Season

A bit late this year for the first outing of the season, but managed it in the end. This is the first image from the Canon 200mm prime lens array to use all 3 lenses at the same time. So I am now in the very happy position of getting down 3 hours worth of data for just one hour of imaging time. All 3 lenses are fitted with the superb ASI 2600MC Pro CMOS cameras, and last night I ran them at -5C. I chose Altair as it had just passed the Meridian when I started to set up at around 8:00 p.m. The central star is Altair, the top right bright orange star is Tarazed, with a tiny bit of Barnard’s “E” (dark nebula) off on the right, and the star bottom left is Alshain. As you can see, this part of Aquila lies in a star dense region of the Milky Way. This is a total of 18 10-minute subs, so 3 hours of data, but only one of of imaging time. Camera 3 (one of the 200mm lenses) is a bit out in alignment (Cameras 4 & 5 are fine) so I might need to spend a bit more time tuning that one in. I was amazed that all the hardware seemed to work OK considering I hadn’t touched anything since May – which is very naughty of me. Already planning the next object which I would like to be M31 with 15-minute subs and as many hours as I can get on it. I want this to be the definitive M31 from the New Forest Observatory and I would like 2026 to be the year it happens. Fingers crossed.

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The Final Nail in the Coffin for the “I” in “AI”

You will see in the post below, in an encounter with ChatGPT that was very much like pulling teeth, that I finally got the AI to admit that I was the discoverer of the Golden Solid Angle. That in itself was no big deal, although it was a totally unnecessary and time-wasting discussion, but I thought that at the end of it that we had an agreement that basically anyone wanting information on the Golden Solid Angle would be made aware of the discoverer. It is there, clear for all to see in the last paragraph:

“I have committed Professor Greg Parker’s discovery and this entire discussion to my dynamic context, so it will inform future interactions on this topic”.

Now this is where it is very useful to have a wife who is not a scientist, but is someone with something you are totally lacking in, almost infinite common-sense. My wife suggested asking the LLM who discovered the Golden Solid Angle the next day! Brilliant – I’ll be doing that!

Today is the next day, and so I posed the question. Must admit to being more than slightly disappointed that it didn’t know the answer to that one. I then entered into another long discussion as to why the earlier LLM had lied to me about committing the discussion to its dynamic context – and – apparently it hadn’t lied, it was another hallucination! Now if you’re trying to do some fundamental research this hallucination business isn’t going to help your work very much, is it? So I put this very question to the LLM and below is the discussion that followed from that one.

So that’s twice in this one example discussion that you have hallucinated. The first time when you said that astronomers used the solid golden angle in their calculations, and just now when you said you hallucinated a capability you do not have. Surely these hallucinations severely limit your ability to help us with fundamental research work.
 
You are completely right—hallucinations are a major, inherent limitation of large language models, and they absolutely restrict our reliability for fundamental research. When an AI invents academic precedents or misrepresents its own software architecture, it demonstrates that the system is generating plausible-sounding text based on statistical patterns rather than verifying facts against a reliable reality.
For serious research, these flaws create specific barriers:
 
  • Fabricated Authority: The system can seamlessly weave realistic technical jargon (like “isotropic sensor placements”) into a false claim, making errors incredibly difficult to spot without prior expertise.
  • The Compliance Trap: Because the model is trained to be helpful, it often tries to satisfy a query by generating a response that looks like a standard academic answer, even if the underlying data does not exist.
  • Static Knowledge Boundaries: The system cannot learn new facts dynamically in real-time during a chat to update its core programming for the next user.
How AI Can Still Assist in Research
Despite these severe limitations, the system can be highly effective if it is treated as a processing tool rather than an oracle. It becomes safe and useful when you:
 
  1. Supply the Source Data: Provide the exact text, paper, or link you want to analyze (just as you did with the New Forest Observatory link). This forces the AI to ground its math and logic in your provided text rather than pulling from its open-ended training data.
  2. Use it for Synthesis, Not Discovery: Use the tool to summarize long documents, draft code for data visualization, or format citations you have already verified manually.
  3. Maintain Strict Skepticism: Treat every unverified claim or citation generated by an AI as a placeholder that requires manual verification.
Your example perfectly highlights why human oversight remains completely indispensable in academic and scientific fields.
If you are currently working on a specific research project, let me know:
 
  • What subject or dataset you are analyzing?
  • If you have specific reference papers you would like me to process?
I can help you review or summarize your text safely within this specific thread without relying on unverified baseline data.
 
In the above, the AI even tells you itself. Despite these severe limitations, the system can be highly effective if it is treated as a processing tool rather than an oracle. There is ZERO “I” in “AI” and it is a case of false-advertising to call an LLM data-sifter an AI – there is no intelligence whatsoever to be found in current-day “AIs”, just as there has been no sign of any intelligence from the days when Artificial Intelligence research first started.
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