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About DaveS

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    Red Dwarf

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  • Location
    Ruislip, West London and Bride Valley, West Dorset.
  1. I'm down at my country house in Dorset. Clear dark skies, apart from the moon. Went out an hour ago and saw a long bright trail. Will go out again after dinner / tea.
  2. DaveS

    M31 HaLRGB

    Ah, right OK. I'll bow out as I'm obviously behind the discussion. Sorry.
  3. DaveS

    M31 HaLRGB

    May be late to the party, but those halos look like the effects I've seen during DDP (Using AA5) while I'm getting the values right.
  4. DaveS

    Scope balancing

    On the DDM I balance around RA, and the Dec in both axes. The Autoslew software has a balance routine that measures the current needed to move the scope each way. The scope is balanced when the current is equal and as low as possible. No PE or backlash with a DDM mount.
  5. DaveS

    DaveS's Obsy Build. First thoughts.

    No comparison. SQI 21.66 vs 18.6-ish in Ruislip. On Tue 31st it was clear, the Milky Way was visible as soon as I went out on the patio. Some LP visible from Bridport to the west, but not too horrendous. Main downside is the sky is not as open as I have in Ruislip. Trading quantity for quality. One reason to lose the tree.
  6. DaveS

    DaveS's Obsy Build. First thoughts.

    A couple of photos of the offending tree. And closer
  7. DaveS

    DaveS's Obsy Build. First thoughts.

    Quick addition. No TPO, but as it's a conservation area, I'll still need planning permission. Email I got back suggested a tree surgeon should be able to handle the paperwork.
  8. I don't have a mount for it yet, though based on experience I will be getting an ASA DDM85 Basic. Amp glow on the ASI 1600 MMC does calibrate out *reasonably* well, but trying to get rid of it on my ASI 183 has been a nightmare, would rather solve the problem at source by going CCD. Looking at the Kendrick site, I think their split-ring dew heater won't fit the design of the TT RC. Not sure yet about the behind-the-mirror design.
  9. Thanks Tomato. A 6" f/8 frac has been a possibility, but don't want to spend TEC / APM money. TS has an interesting 152mm f/8 triplet apo for 3.5k Euro, the same as the 12" RC, and I have considered it. I could get similar plate scales and resolution with a smaller-pixel camera, but from some other threads I've seen the 12" might get me more photons faster. I would pair it with a 16200 camera. Not sure which ATM though. Don't want any of the current CMOS due to amp glow, and cannot afford a FLI Merlin pro CMOS camera, by a long way.
  10. Planning a new obsy rig, based around a GSO 12" Truss-Tube RC and was wondering what others do about dew control Is it possible to fit dew heaters to the primary mirror? What about the secondary? I'm thinking that it should be possible to run a band around the baffle, then run the cable across one spider vane and down a truss. How about a shroud? how important is it in a dome obsy? ATM I'm planning a dome on a square base.
  11. DaveS

    Sky at Night, 18th Nov

    10 pm Sunday, BBC4. The Bepi-Colombo mission to Mercury, looks interesting. Will have resonance for me, as our new technician who will be taking over from me is writing up her PhD thesis on the X-RAY spectrometer on board. She is very on-the-ball, and will be better than me in a short while.
  12. DaveS

    Astro Art 7

    Billy, Harry, many thanks. I'll have a look, my laptop is here with me though my main one is in Dorset.
  13. DaveS

    Astro Art 7

    I bought the DVD version form FLO. I did try emailing Fabio as I couldn't understand the stars in the serial number, the reply was that that was to protect my security . I have software costing a heck of a lot more than AA5 (Avid Media Composer, Sorrensen Squeeze, Boris FX, DaVinci Resolve) that show the full serial number.
  14. DaveS

    Astro Art 7

    I would like to update but unfortunately mislaid the manual which has the full SNo, so am stuck at AA5 unless I want to buy a new license. It's about the only software I have where the full SNo doesn't come up on the splash screen.
  15. DaveS

    Outdoor setups

    Um... that should be *mist* Stupid autocorrect. Stupid again. Um, not I'm

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