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About Astrosurf

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  • Birthday 05/08/62

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    Lover of all things astro, my family and friends (for their tolerance as much as anything!), science, reading, music, snakes, anything with an exoskeleton and anything/anyone that makes me laugh!
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  1. I took a few shots of the Moon with a static tripod so the Moon isn't in quite the same place in each pic. How do I stack the images? I tried the various options from this site but none worked. https://helpx.adobe.com/photoshop/using/image-stacks.html Alexxx
  2. Skytech CLS Filter?

    I'm afraid I didn't, Ian. I wish I could. I don't have the dosh right now.
  3. Mud

    Hmmm, you should be able to pull more out of the image with all that data. I wish I could help but it's been ages since I did any processing! I hope someone else can help.
  4. Mud

    That's a cracking image! I wish I could get something so beautiful. Can you give us capture details? Equipment, sub length, quantity etc? I must try widefield on Orion etc too! Alexxx
  5. M31 process try and try again

    That's good info for such short subs. For the faint arms I would take guided subs of minimum 5 mins. Alexxx
  6. Info about registax

    I second Autostakkert. A wonderful bit of software. I still use Registax for the marvellous Wavelets function on the resultant TIFFS. Only for the Moon and planets. What are you stacking? Alexxx
  7. Andromeda DSLR and focal reducer

    I would suggest you would need longer exposures to get more detail in the faint arms. Alexxx
  8. 3D printing for accessories? Or other materials?

    Thanks Neil! Excellent. What did you use as a template? An existing dovetail?
  9. 3D printing for accessories? Or other materials?

    Thanks. I did wonder about the hardness of the plastic. Did you do what Jamie said and used PETG with 100% infill?
  10. 3D printing for accessories? Or other materials?

    I don't suppose you noted down instructions?!
  11. Has anyone used 3D printing for accessories that take quite a lot of force, e.g. dovetails? I want to make a side-by-side bar. First I thought in wood, then thought about 3D printing. Have you made accessories in wood or other materials or used 3D printing? What have you made and how have they fared? Alexxx
  12. Have a go with this, to see FOV. Choose 'Camera lens' in the 'Telescope make...' drop-down list. Then lens size, camera etc. http://www.12dstring.me.uk/fovcalc.php Alexxx
  13. I have a finder-guider set-up with an old QHY5 cam and SW finderscope. I use PHD1 for as my guiding software - PHD2 is supposed to be good but I like what I know! I'm desperately trying to remember what I do as I haven't been out for so long! I'm sure your set-up is different but I hope this helps. Here goes: I plug in the camera to mount's guiding socket and to laptop with USB connection. I open PHD, select camera, click Loop and click on a star (my guidescope is focused already). I then click the PHD button and it calibrates. I haven't got a pic of my settings but if you want I can post one. When it says 'Guiding' I open the graph so I can see how it's going, and hope for the best! I'm sure I've missed steps! See here: https://openphdguiding.org/PHD2-2.4.1g-manual.pdf I only polar align as accurately as possible. I never drift align. Things tend to work out quite well. Alexxx
  14. Smaller sensor or longer focal length

    Have a look at this thread. The SW150P-DS or 130P-DS look overall very good and are quite light. I love my 200P for imaging smaller DSOs but you need a very calm night! And it's at the limit of what my HEQ5 Pro mount can hold, with all the gear. What mount do you have? Alex