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Everything posted by Bobby1970

  1. Seeing one of the last ever Shuttle launches back in 2010 was incredible, the sound, while obviously nothing like a Saturn V was something that will live with me forever, crackling roaring all mixed together. Was fortunate enough to visit Florida again a couple of years back and see the shuttle we saw launch (Atlantis) now in its own amazing visitor center at KSC. I spent well over am hour just walking around it soaking it all up. Also, when I was 10 years old back in 1981 I went to an airshow at the then RAF Finningley. Something on the flying program caught my attention immediately with the title "Vulcan scramble". Turned out it was 5x Vulcans taking off forming up and displaying. Utterly amazing sound and spectacle. Still give me goosebumps 40 years later.
  2. Couple on new toys to have a play with.
  3. These were all done using my AZGti in Alt/Az mode. Maximum of 15 minutes integration time live stacked using sharpcap All with my 178mc. Some with 72mm scope some with an old lens. Close up Orion was with a 90 mm Mak I think.
  4. Thought i would have a crack at this, despite the moon. lol 40x120s subs, 30 darks. 72mm Semi Apo refractor, ZWO 178MC. Captured using ASiAir Pro. Processed in Startools, Paint.net and windows photo editor. I have and continue to have trouble selecting an optimal gain setting tbh, i had been using 270 and things constantly look noisy to me and are even more difficult to process. So i knocked the gain down to 130 for this and it seems to have helped somewhat. Some stars still look very big though not sure what the best course of action is with them. Thanks for looking.
  5. The Mrs got me these for Xmas. I haven't used them in an astro capacity yet. But a walk to the shops and back and my hands were toasty warm. Two fingers and thumb still available for phone operation etc https://www.amazon.co.uk/dp/B0173PG4QI/ref=cm_sw_r_cp_apa_fabc_KY07Fb8DYRMZA
  6. Thanks for the info Pete. I have noticed it in Venus images i have captured previously and have wondered what it may be, but it seems more pronounced in the Mars image. For a pretty small planetary scope i can't grumble too much.
  7. Had a go at this last night. Captured around 5000 frames with the ZWO 178MC and a 2x barlow Processed the best 50% using PIPP, AS3 and Registax. Can anyone help to explain why it seems like i have a sort of "double" edge to the planet, mainly on the right hand side?? Thanks for looking anyway
  8. Been away in Cornwall for a week, just outside of Marazion. First night there was nice and clear and i had the benefit of a roof terrace/balcony so set up the Star Advenurer, Sony A57 and Minolta 50mm lens. I was having issues polar aligning initially but think i was somewhere near, however i then had issues with power supply intermittency. Its either a dodgy USB cable or the socket on the SA itself. Anyway all i managed was 18mins worth of 20s shots at iso 3200. If i had more dark nights i would have had another crack but alas none were as good as the first night. Visually, naked eye was a treat too tbh. Milky way easily visible and M31 with averted vision also. I used DSS, Startools and Topaz to end up with this effort. Thanks for looking.
  9. Very interesting thread this is. I've been using my AZGti along with ASIAir Pro recently. I guide it using a small guidescope and 120 mini. I had some backlash which seemed to affect my images and guiding performance so I disassembled the mount and removed as much of the backlash as I could. Last time out I lost no subs at all guiding at 180s. I use a 72mm semi apo scope and zwo 178mc camera. My most recent effort was this :-
  10. I was hoping for some more sharpness in general tbh. It's come out ok don't get me wrong. The lens is a well regarded 50mmlens but I'm sure I read something years back about it being sharper from f4 upwards. But forgot when I captured this image. Lol.
  11. I think I should have stopped the lens down a bit more. Might try at f4 or higher next time.
  12. Been looking at some so called "silent" fans so it sounds like I have options there. I did fire it up this afternoon and pointed the scope at a distant chimney pot. The image seems nice and stable so fingers crossed vibration isn't going to be an issue. Away on holiday from Friday so will pick this back up after then.
  13. Thanks for the info @Gina. With my "testing' so far mine seems to run cooler with the fan the opposite way around. ie pulling air from the heatsink out to ambient. I am awaiting on a dew heater for the front end to hopefully help with the sensor window fogging. If this all works I will then look at some temp control with the intention of a target of 3-5 degrees. I will then be looking at a quieter fan and/or speed control for the fan and checking for any vibration issues with the image the camera produces. I read a little about heatsinks and their jest dissipation ratings. I do wonder if there's a way to avoid using s fan altogether with an appropriate sized heatsink tbh. However, I am making all of this up as I go tbh. But it has been good fun so far. Ps, glad you are back.
  14. It wasn't so noisy until I swapped it around. I wonder if it's pulling air through, and around the heatsink find and fixing screws?? Going to try reducing the speed at some point and add temp ctrl.
  15. Noted on the "no fan" idea. Thanks guys. I could stick a variable resistor in line with the fan I guess and reduce the speed to an acceptable noise level maybe, while still cooling the heatsink. I just wondered if the fact that the heatsink is 40x40x20mm, it may have been enough without the fan. I'm just making it up as I go tbh. Lol
  16. I am wondering if I can run it without the fan. Need to do some more testing. See how it goes without it. Made some more of the foam insulating jacket. Had some thin self adhesive black foam left over from something so.covered the insulation around the main body with that too.
  17. So, today I started with some insulation around the main part of the camera body and pit the camera on test for around ten mins. Insulation around the main body seemed to do a good job, need to make some smaller bits for around the rest of the camera and heatsink/peltier as there was still moisture there. Sensor window still fogged up temp 3-4 Deg after 10 mins or so. Next I reversed the fan so it was pulling air from the heatsink and out into the ambient air. Within 10 mins the temperature had gone from an initial 20 odd Deg. Down to sub zero. . There was actually frost on the rear of the camera lol. It leveled off at around -0.2-03 Deg. Sensor window still fogged up. My current conclusion is. 1) I still need some sort of dew heater for the front of the cam. 2) I will deffo need some temp control lol. And 3) the fan may be too loud. Lol. PXL_20201011_134946962.mp4 PXL_20201011_134946962.mp4
  18. thats certainly worth exploring. I have a dew heater wining its way to me so will be working more on the cooler during the week i would think.
  19. looks very similar to the one i got
  20. i think i have maybe clipped it a little, you are correct, im still fairly happy with it
  21. While the AZGTI was doing its thing with my scope on the Pacman nebula i set the star adventurer going with my A57 and an old 50mm Minolta f1.7 lens @f2.5 in the Cygnus area. Captured around 1hr 8mins worth of 30s subs at 800iso, captured darks and flats also. Stacked in DSS and processed in Startools, Topaz and paint.net I think i have captured a few objects in this frame. Thanks for looking Annotated:-
  22. I haven't tried swapping the fan around yet, i currently have it drawing ambient air onto the heatsink.
  23. Excellent, thanks so much for the info. if i can get the thing to a steady 3-4deg regardless of the ambient and also stop the sensor window fogging up i will be more than happy. Thanks again
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