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Everything posted by LongJohn54

  1. I forgot to post the end of this little saga. After letting the dehumidifier run for several hours it slowly began to bring the RH down but stuck at 80%. I watched a few youtube videos showing dehumidifier repairs and discovered that they have two drains. The primary drain for the water from the condenser and another smaller drain from the heating element chamber which lead to the thought that maybe this was blocked. Having switched off and unplugged it I turned the dehumidifier on its side. About half a cupfull of water came out so I returned it the right way up. Shortly after sw
  2. There was nothing obviously wrong with the dehumidifier so I switched it on about an hour ago. It sounded normal so I was hopeful. By now the RH should be 60% but its not moved at all. I'll have another look tomorrow in daylight. I used to let natural ventilation keep the obsy damp free but drawing in fresh air at 90%+ Rh wasn't really achieving anything so I closed as many gaps as possible with brush strip and run the dehumidifier 24/7. The only time its off is when I'm inside with the roof open.
  3. My dehumidifier has run for years on a low setting keeping the obsy at 60% humidity. It's so reliable I forget about it most of the time. Today I got an alert that the humidity was over 70% so went for a look. Hmmm, a few hours at -6c has proved too much and it's stopped. That's -6c inside the obsy and -8c outside for a while overnight. I first thought that the outlet hose might have frozen causing it to shutdown but it wasn't that so I've unplugged it for now. I've popped a heater on and will investigate further once the obsy has warmed up a bit.
  4. A late Xmas pressy. 500 pages listing every event from 1 July 2020 to 31 December 2025. Great for longer term planning and then looking up on Stellarium to check. There's no commentry on events though so I wonder if I'd have spotted this one on 21 Dec 2020 and realised its significance.
  5. Something warm and fluffy for my head and neck on those cold nights.
  6. but I like it. https://www.facebook.com/artvideosofficial/videos/305340907530261/
  7. I thought 'oh, that looks interesting' and went off to Amazon to order it only to find I'd bought it in January 2019 when this was first posted. My plan was to have it to read whilst I was in hospital but I didn't read it then and never looked at it since. So, a timely reminder. Must get the kindle charged and take a look.
  8. This is really good tubing, nice and flexible to get through any route between A and B. However, it has a lot of internal stiction making it difficult to pass cables through it. My tubes were about two metres in length and I spent a long time pulling and pushing and moving barely 5mm at a time. Not fun when the bends were a fairly large radius and almost impossible with any sharp bend. Try passing a cable through to test it before installing.
  9. The small object came in that box
  10. Not just 15 years but an average of about 8.75 posts per day throughout that time. Congratulations and here's to many more years and posts.
  11. Big flakes of snow in the box and a scattering outside on delivery day. Flo excelled themselves.
  12. Two parcels. One for me and one for my grandson who will be eight next week.
  13. I received an email from Salvatore on Friday saying he'd recovered my images and when I logged in there they were. You've got to admire him, when things go wrong he doesn't give up trying to put it right.
  14. Nailed it there! A normal 24 hours is the time taken for the earth to rotate enough to point exactly at the sun. A sidereal 24 hours is the time for the earth to rotate exactly 360 degrees. Therefore stars appear at exactly the same sidereal time which is why RA is described as a time.
  15. Living in Scotland we have 80-100% humidity pretty much all year round. I had thought that with plenty of ventilation my obsy would remain condensation free however, it only takes a rise in air temperature of a couple of degrees and moisture would form on the cold mount and scope and everything made of metal leading to rust. I run my Neostar Desiccant Dehumidifier 24 hrs a day 365 days a year. I keep it at 60% humidity and being plumbed in (hose through the obsy floor) it never requires maintenance or even looking at. The gentle heat it outputs keeps the obsy a few degrees above ambien
  16. According to the police this scam was shut down in 2005. All email warnings about it since then are hoaxes. https://www.actionfraud.police.uk/news/hoax-email-from-pds-parcel-delivery-service Edited to change text to a link
  17. I began reading this thread without noticing the first post date. I got a shock at seeing the second post and had to have a close look at the post dates. Alberio380 (Dr Tom Clackson) passed away on 27 Sept 2015 whilst cycling to help at an outreach event run by The Astronomical Society of Glasgow of which he was Treasurer. https://www.theasg.org.uk/index.php/all-articles/21-dr-tom-clackson I bought my first refractor (TS 127 as seen in my profile picture) from Tom and after spending a couple of hours at his home chatting about all things astro left with my new scope and another
  18. If you use a site like www.latlon.net and zoom right into your location you can be really geeky and nail your position right to the spot. Seconds with 2 decimal places gets you into your garden.
  19. It's sometimes easier to watch a short video where someone explains why a good home position is required whilst showing you how to do it. https://www.youtube.com/watch?v=4fO6hyYtPwM
  20. Excellent image. I'll be using that as my reference image when I process my M51.
  21. It's the afternoon after the night before and I've discovered why my limits were on but not apparently working. They were working but using the limit file I had set for my visual scope. With no cameras to worry about the limits were set quite wide. All fixed now.
  22. Guess who's been reading too much SGL and not paying enough attention the where the scope is going tonight. 6mm from the nut. I think I'll spend some time exploring mount limits and how to set them better.
  23. That's insane. I hope the rest of your subs are way better. Perhaps send that sub to a newspaper. They love a good illustration of problems like this. Sky at Night and Astronomy Now as well.
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