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JCJC

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About JCJC

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    Proto Star

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  • Website URL
    http://horizonastro.blogspot.com/
  1. Hi everyone, Long, long time since I've posted. Finally some clear skies in my Summer holidays to take advantage of! Full version on AstroBin: http://www.astrobin.com/full/210107/0/ Ha: 28x10min OIII: 32x10min 10hrs Total, Atik 314L+, ED80 I started a 2nd pane in Ha but I'm off back to university now so I won't finish it in colour this year. Thanks for looking! Jordan
  2. If you are thinking of making your own heater bands (quite easy) then this is one of the best guides, there are others. http://stargazerslounge.com/topic/185968-led-dimmer-dew-controller-full-write-up/ EDIT: almost quick enough ! JCJC' dad
  3. While having a half term break in Hay on Wye noticed a dark skies festival poster, to take place in Hay 21st to 23rd March 2014, more info from here http://www.darkskiesfestival.org Hope this is of interest. JCJC's dad.
  4. There is some math in these 2 pages, you may be able to adjust the numbers or the thread size. http://massapoag.org/astro_2/Equipment/Barndoor_Tracker/Barndoor_Tracker.html http://astunit.com/atm.php?topic=handscotch jcjc' dad
  5. I am sure LiPo or even LiFe radio control packs would lend themselves to powering astro kit, using LiPo in radio control cars over the years I have seen a few packs swell/puff when badly charged, yet to see one randomly catch fire but there are stories, radio controllers had problems with NiMH cells. Dedicated chargers for these batteries are cheap enough and should be used. The packs for flight are soft cased and would need to be boxed, car packs have hard plastic casing with hard wired cables or bullet style connectors. Lipo's need a voltage cutout in the circuit that switches off before they are over discharged, dedicated lipo chargers will refuse to charge a battery if the volts are to low, assumption is the battery/cell has been damaged. We love our LiPo car packs. Hope this is helpful, jcjc's dad.
  6. Have you looked into your local society, http://www.abingdonastro.org.uk/aas_blog/ jcjc's dad
  7. Hi Olly! Long time. Looks like an awesome project and should get stunning results! I can't see how it could not reduce noise, did the guy on the French forum give a reason? It seems to me it doesn't matter if it's the same filter in both or different filters, either way you will get twice as much imaging time per session. As long as the correct calibration frames are used it's just like running the one camera for twice as much time. Surely? All the best, Jordan
  8. Not sure if this is helpful, but may try right click the .exe file and pick 'run as administrator' , I am not an expert - jcjc's dad.
  9. Looks a useful app, not all android devices can make use of it, try remote release (free) before paying £5.94 for controller. JCJC's dad
  10. Like the top part of a traditional sash window, on a modern spring system would be possible, three unseen walls could be same as Gina's roof - rubber sheet stuff over ply, wrap the edges - waterproof - may need venting? and may cost as much as plastic cladding. JCJC's Dad
  11. Made a couple from nichrome wire, used this page as a start http://www.iceinspac...92-0-0-1-0.html you may have seen it, we added another row to do circumferences and tried to buy wire from ebay to suit ohms/length/watts. Wire then fed into heatshrink to isolate, we used 2" black velcro to form the tapes, hooks inside fury bit outside and sort of pushed together on the scope to help retain shape. Wire terminated with a bit of connector strip siliconed to the outside (crimp would work), same sort of controllers. They work well and can be pulled apart and adjusted. Most difficult part was sorting the wire length - but you can zigzag a bit etc. We run off an old PC power supply and use a maplin supply for cameras/mount. JCJC's dad
  12. The standard is here..... http://ghonis2.ho8.com/rebelmod450d1.html Gary Honis, colour correction see page 8. we pulled a 450d with no problem, be more careful with the 1100 looks a bit tighter. JCJC's Dad
  13. We use a B6 charger as above, its amazing value and easy to use. Keith has it about right. JCJC dad
  14. Much the same as charging radio control models, the B6 charger above will do what you want and is common in RC, it runs from 12v (car battery or mains adapter [extra]). You may have to make up a cable from charger to battery pack, 4mm banana to..... Manual: https://astecmodels....x-B6 manual.pdf Depending on your batteries (AA's ?) you will need to set a charge rate (around 0.5Amp), not to high I would have thought. It is possible to find a 230v 'dual' version for approx £30. JCJC's dad
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