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About DaveS

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  • Birthday 02/03/56

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    Ruislip, West London
  1. Ooh, I do like that. But I think you'd need a substatial mount. Possibly the yet to be released Mesu 300, or my choice, a DDM160.
  2. Leave Mars alone. We don't need to terraform it. But we do need to diversify. Although the average life expectancy of a mammalian species is about 2my, whether that applies to one that is self-aware and can control its enviroment is still open to question. Which means we should be planning for the long term. In the long term we only have about 500my before we need to move on.
  3. Never mind Mars, we should be working towards building O'Neil colonies, as he mapped out in "The High Frontier" yes it's optimistic (Boo, hiss) but there's no un-do-able technology there, it just needs us to pull together. At the moment we have all our eggs in one basket, there are too many ways in which our civilisation could be wiped out, or even we could be extincted. And a reminder that our civilisation developed from using fossil fuels and minerals. Once we fall there is nothing for a successor to use. They will have to wait several tens of millions of years for them to be replaced. We need to harden and diversify.
  4. I think the Astronomik has a wider gap between the red and green bands. Also they are 1mm thick compared to 2mm for the Baader. May be important if your train is very sensitive to spscing.
  5. Yes, you can, sort of. A Skywatcher Star Adventurer will fit the bill, and enable basic deep sky AP if you use a DSLR and moderately long lens and keep the exposures short. Beyond that it gets serious.
  6. It would sit nicely on my DDM60, imaging capacity 28kg. My only concern would be for the dreaded "blue bloat"
  7. Repeated tonight at 7.30, BBC4
  8. I might give it a go with my 130 apo if we ever get another clear night. Mind you with my LP it'll be a challenge.
  9. OK, who's up for the trans-Neptunian challenge?
  10. That's the one. Available from FLO
  11. I started watching "Gravity" but gave up and started watching Prof Brian Cox on Yesterday.
  12. DSS is OK (But only OK) for stacking, but neither it, nor LR are any use for post. Have a look at AA6, it'll do your capture, guiding, stacking, and first pass (At least) post. Including pretty good gradient removal.
  13. My DDM60 is *very* sensitive to balance, even down to the lens cap or cable loom. Fortunately there is a very good balance tool built in to the software.
  14. Flats won't deal with gradients. I use AstroArt 5, it's now at 6. The gradient removal tool is very effective though you may need several passes. Best not to try AP with a near full moon, even when it is dark.
  15. Yes, with Sandra Bullocl and Goerge Cluney.