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Synchronicity

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Everything posted by Synchronicity

  1. Here's a recent thread discussing computer advice... https://stargazerslounge.com/topic/363274-pc-for-processing/ Michael
  2. I hadn't considered that Andrew so if I have made any wrong assumptions based on that I'll apologise. Michael
  3. The video was titled "Japanese space mission that may have proved Panspermia" which is contradictory. They either proved it or they didn't. A correct title might have said the mission investigated the possibility. You then confused the issue by posting "We Now Have a Definitive Proof Of Panspermia Being Possible" which is not what the video claims - even in its clickbait title. In science ideas are floated and tested. Those that get through initial tests get investigated in more depth. An idea might become a hypothesis which might become a theory which might become the widely accepted. This process doesn't come about from lots of people trying to prove that the theory is correct, it comes about by lots of people trying to prove it incorrect and failing. Videos like this make hysterical claims about whatever by doing exactly the opposite that science does. They never actually contribute to people learning something, they add to confusion simply to get clicks or views or whatever the makers desire. Cable TV is full of 'Ancient Aliens' and garbage like that because it's cheaper to make, easier to exagerate and more sensational than real science. You might think I'm rude or offensive and I apologise if I've hurt your feelings. That won't stop me from condemning anyone for pushing anti science sensationalist nonsense. Michael
  4. I don't understand what anyone gets from spreading such anti science nonsense. There's too much of this on cable TV and the internet where people take a couple of facts or opinions and then invent sensationalist rubbish just to get attention. Try real science sites like https://www.youtube.com/user/TheRoyalInstitution/videos where real science is presented in an interesting and informative way. Michael
  5. Windows file explorer can show all sorts of tags belonging to a file but it can't show fits data. Does anyone know of one that does? Thanks Michael
  6. Send me the file and your address by PM and I'll get it done this week. Michael
  7. After much advice here and thanks to a friend of a friend I took delivery of this today. 1.3 m high, many kilograms heavy! It's been treated with zinc phosphate primer and will get a couple of coats of Hammerite or equivelant before planting. This weekend I'm running Cat6 cable out to the plinth and starting to build the equipment box which will be fitted to the bottom of the mount. Michael
  8. My understanding is that guiding benefits from slightly soft focus so doing it by eye would be fine and even then it might need slightly defocused. Michael
  9. WHat a fantastic image! Is this the type of filter you are using? https://www.firstlightoptics.com/light-pollution-reduction-imaging/optolong-l-enhance-narrowband-deep-sky-imaging-filter.html ? I might need to ask Santa for one Michael
  10. I'm looking at mounting my DSLR on top of the scope and wondered what the plate I've arrowed is for. Can it be used to mount a bracket? I'm wary of just taking the screws out to see what happens - invariably what happens when I dismantle something I don't understand is something goes 'ping' and flies across the room, never to be found again! Thanks Michael
  11. That's what I get for not reading the thread properly Where's the D'oh smiley face
  12. For setting the weight bar vertical I first set it horizontal using a spirit level, adjust the setting ring (don't know the proper name) to zero, then rotate the bar 90 degrees. Simple but accurate. Michael
  13. I'd been swithering about buying this book after reading the thread but couldn't decide. I downloaded a few videos about processing to get me started and the first one showed someone using several of the PI tools, saying what he was doing and seemed to be getting results. The second video had the guy using the same tool but he took 30-45 seconds to explain what the tool was changing and what the settings meant. That's when I decided I needed the book! Having started working through the book I'm amazed at how much detail there is and how well everything is explained. In the reference guide each process has a short description, When to use... and details of the parameters and what they do. It might take a while but I think that knowing exactly what changes to expect from each process will be key to getting the best out of each image. All the best Michael
  14. So far I have 2 nights worth data and plan to add more. I need to stack each night seperately as the imaging train was dismantled between them so different flats need applied. What is the best way to combine the stacked images and am I best to combine right after stacking or should the I process each individually first? Thanks as ever...Michael
  15. Synchronicity

    Reboot

    It seems a cheek to continue a blog about being a beginner 2 1/2 years after the last post but in many ways I still am. Family health issues have meant that I got out with my equipment irregularly so spent most of my time trying to get set up. I would collect an hour or so of data but rarely enough to encourage me to do anything with it. This year I decided to use what I have learned, solve my issues, and do a ‘reboot’. Equipment. I’ve bought a QHY10 OSC cooled camera and spent time getting the spacing right so that I can assemble, connect and go. I’ve also bought a used Skywatcher NEQ6 Pro GoTo mount which is much more solid and capable than my EQ5. I need to strip down, clean and adjust the EQ5 and I plan to keep it for travelling. I also have my Esprit 80ED with flattener and a Starshoot Autoguider camera on a small guide scope. Set up. I’ve assembled my setup in the house and found good safe routes for all the cables, looming them where I can. I’m planning to mount my USB hub on the body of the NEQ6 to cut down the cabling even more. Setting up for the night. The biggest timewaster I’ve had since starting is between assembling everything and getting the first usable shot. I have tackled that systematically and, though my process needs refinement it works consistently. The best advice to give a newcomer is take your time getting set up. I always rushed so I wasn’t wasting good shooting time but inevitably got poorer results. Polar Alignment. I’ve taken photos of where the tripod feet go so I can set it up in the same place each night. I have a small digital level which I use to ensure the top plate is level and that the angle is adjusted to my latitude. Being roughly there I start SharpCap, connect the guide camera and start the polar alignment tool. If you are within 5 degrees this will give a quick and accurate polar alignment. Camera Focus The guide camera is permanently mounted to the guide scope and the focus is locked tight so I check that occasionally or if there seems to be an issue. For focusing the Esprit, I start by setting the focuser to the previously recorded position. The imaging train doesn’t change between sessions, so this is close enough that I know I’ll get a usable image to start with. I use the QHY software EZCAP and set it on live view with high gain and 5-10 seconds exposure. Switch to the Focus tool, find a reasonable sized star and make the fine adjustments. The computer is inside in the warm, so I use the Google Remote Desktop app on my phone so I can see the screen in real time as I make the adjustments – this is a great timesaver! This all takes about 30 minutes but if I can start as the light is fading, I am set up and ready to go well before it’s properly dark. Imaging I’m using PHD2 for guiding, Astro Photography Tool – APT for target selection and imaging and Stelarrium for position confirmation. I’ve used the Focus Aid and Bahtinov Aid tools there to check my focusing, especially as the night goes on. More on this in the next post… As a marker of how far I've come - and how far I still have to go, the attached is 2h of 5 minute subs stacked in DSS and with Pixinsights ABE and Screen Intensity Transformation applied. Thanks for reading, Michael
  16. Everything I know about this I've learned from Sean Carroll talks - can any of you recommend anything else for the interested amateur? Thanks Michael
  17. Thanks folks I had trials of Pixinsight and PS last year and settled on Pixinsight. I've experimented with images before but I now have my first good data. I've got about 6 hours on M31 over 2 nights. The camera was rotated the second night so I have flats for both nights but am using the darks and bias from night 1. It's a QHY10 OSC camera, steadily cooled at -25 C I've stacked both sets with DSS using the default or recommended settings and am reading up on how to align and combine the two stacked files. Excited and daunted by all there is to learn but it keeps me busy Michael
  18. Because it's fascinating! I couldn't agree more. The numbers of 'split' universes we'd have after an hour when there's about 1.5×1053 kg of matter in the known universe. Every new universe has the same number of splits every hour. Now consider how many that could be after about 14 BN years. To me that's just irrational - especially when the same physicists will tell you that matter and energy cannot be created or destroyed! I think the answer is around that 'special' moment of time we call now. All the potentials are there and the possibilities calculate out as MW theory suggests until now happens. After that there is one actual universe - the same one with the event now part of history and unchangable. That's why we can't go back in time - we wouldn't know which choices were made. Michael
  19. Actually, it is very likely we won't. If the coin is biased as you say it is most likely we would end up with 4 worlds, hh, hh, hh, hh. Therefor it is vastly more probable that we will end up in a hh world, but there is equal liklihood as to which specific world we land in. Michael
  20. The probability of detection only exists where there is a detector. As each detector is passed the particle is either detected or not, so it becomes a binary split again. Effectivly the quantum waveform 'collapses at that point into a specific result. Repeating the experiment multiple times gives the liklihood that you would see an even distribution between detectors but there should also be a split version where all particles were detected at the same point. The liklihood of you or I being in that version is tiny simply because there are more vesrions where an even spread happens. As I understand it we are in both, probably typing the same messages, but we can't percieve the other versions of us. Michael
  21. Sorry to but in but my understanding is that the 'splitting' happens at the point of detection so at event 1 we have a spin up world and a spin down world. At event 2 each of those worlds splits (we have 4) and at event 3 each of those 4 split again... and so on. Michael
  22. I've just watched a video about processing and realised that this is wrong. While processing each image is read into memory, processed and then written back to disk, or a new version of it is. That means there's going to be a lot of disk activity during all preprocessing and batch activities so a SSD would certainly show a speed benefit. Michael
  23. I've watched the video posted by GuyST and think I have the answer to my specific issue. When doing Aim and then GoTo++ I answered Yes to the dialogue box when it seems that I should have answered No. Up til now I've just used the APT list to select targets and that has worked fine for the 2 nights I've been at this stage of refinement!! I would solve and then send the data to Stellarium to show where I was but have not yet tried getting Stellarium to send the mount anywhere. I think I understand what's been said here and have a better handle how each part interacts with the others - the next clear night will be the test of that! As ever, thanks to those with knowledge that give their time passing it on... Michael
  24. I've been trying to do this with APT. As an example, with accurate PA I then select M31 from the APT Objects list and tell it to move the scope there. Typically I've got the centre of the galaxy in frame but not in the centre. The image preview and platesolving confirms this. Using the Aim and Goto++ buttons I tell APT where I want to centre on the image, it does its stuff and I end up farther away. Reading the manual for APT I'm supposed to select Aim, click on the point I want centred, four concentric circles show the selected point, then I click GoTo++. It never works so I'm sure I'm missing something obvious but don't know what. I can platesolve in APT then select Show to send Stellarium to that point but I don't have it set up that Stellarium can send goto requests to the mount. Michael
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