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Shibby

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About Shibby

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  1. Very nicely portrayed, especially considering the short Oiii data!
  2. One possibility, although probably unlikely given the graph, is that you're guiding on a hot pixel (I think this was already mentioned). Another possibility: If your guide scope is pointing quite far away from your imaging scope and the PA is not perfect, you will get field rotation in your imaging scope. If it's not one of those 2, common sense dictates that it must be some sort of differential between the guide camera and imaging camera. Examples: flexure, cable tug, mirror flop.
  3. Amazing. Such a tiny nebula but you've clearly captured its shape and structure!
  4. Probably the best advice I've had is when somebody recommended a second-hand Vixen GP to me. Since then, I've tried to buy as much as I can second-hand. Most of us look after our equipment and it's a great way to either save money or get better kit!
  5. Europa Clipper is an exciting mission imho, so is the next NASA Mars rover which is actually designed to look for past/present life, unlike all their previous rovers which were only capable of looking for life-supporting conditions. The hunt for life has by no means "failed at Mars". Then there is ESA's JUICE mission, BepiColombo to Mercury, private and public manned missions to asteroids and Mars... Still plenty to be optimistic about! However, the most exciting mission for me is JWST, which deliver an awful lot of science, albeit remote observations - but observations that include the atmospheres of exoplanets.
  6. M82

    Yep, gobsmacking was the exact word I was thinking of! You must have a lot more patience than I with that 8 hours of processing. Which optics and FL did you use if you don't mind me asking? And total integration time?
  7. Nice job Rob. Amazing what can be achieved with a bit of determination!
  8. Really nice! Loads of subtle detail & colour across the whole range and I like the star colour a lot. If I had one question, it would be whether there could be more colour in the core? It looks a little monochrome compared to the rest of the nebula.
  9. I've just buried the 67mm downpipe, but I'm already regretting it a little because, even though the outside of the corner is nice and gentle, the inside of the corners is not I don't even want to try pulling the cord through yet!
  10. @kirkster501 That is one neat solution, love it! @cjdawson Thank you for explaining, that all makes perfect sense now. @Dr_Ju_ju It's also a very good price - think I'll get a good length of it ordered today. Thanks again all, got things a lot clearer in my head now!
  11. Thanks very much for the responses all! @Dr_Ju_ju Might get one of these for the mount at least. @michael8554 Thanks, yes it should be ok but I'm not sure how flexible because it's flat? @cjdawson Very helpful indeed, thanks! I'm not sure I 100% understand, however. Are the connections on one side of your fuse box all inputs? (the input is not shared?) So, just to make absolutely sure I'm not getting the wrong end of the stick here (which is quite possible), is this simple setup correct? Crude diagram time...
  12. Hi all, I'm currently ordering parts for my observatory build and was hoping for some advice on the DC power distribution. I already have my 30A bench power supply with short circuit protection. I have 2 heavy cable running this 12v output to the pier. I could do with a sanity check on the rest of the plan, as I have no experience and am a bit confused having read lots of different information. Can I run this into a fuse box, e.g. http://www.12voltplanet.co.uk/low-profile-standard-blade-fuse-box-side-terminals-8-way.html With appropriate fuses installed for each device (camera, mount etc), I then connect cables with blade terminals - but what sort of cable do I need for the devices? Will they need to be well shielded even at low current? Or will this sort of thing do: http://www.12voltplanet.co.uk/2-core-thin-wall-auto-cable-2-x-11-amp.html - It doesn't look very flexible, though. Also, and I'm sure this is a very dumb question, how is it best to connect the negative wires - a separate terminal block? Help and advice much appreciated (Please do not assume I know anything!) Thanks
  13. Who is trapped under your floor??? Quick/dumb questions - why insulate the floor?
  14. Yet another question - sorry How much clearance do you folks leave between mount and ceiling? I know the distance from the base of the pier to the saddle on the mount, but not sure how much I should leave at a minimum for future (parked) setups - cameras, finder-scopes etc etc. Thanks!
  15. I've been trying to read up a bit on the ants... I think that, if their route to the surface is cut off they will die, so hopefully the compressed MOT will be enough to keep them at bay!