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About chiltonstar

  • Rank
    Sub Dwarf
  • Birthday 19/12/45

Profile Information

  • Gender
  • Interests
    Wildlife photography + astronomy of course
  • Location
    Wessex/N. Berkshire Downs
  1. We're not that many generations from being hunter-gatherers (and prey to top level predators) so I imagine being afraid of the dark a little is only natural and common-sense from a Darwinian perspective, bearing in mind our poor dark vision! Maybe night vision goggles are the answer - if we can see around us well, we're not likely to be afraid of the unseen! Failing that, get a dog?? Chris
  2. Thanks for these replies: Chris: I've just tried AS and although it's slow (no patience I'm afraid) it is sharper and cleaner looking, so clearly the way ahead! For example, one avi extracted below (Jupiter, Europa and Ganymede) Dan - I do use a Barlow (x1.5) screwed into my flip mirror, but I had to take it out this time because the seeing wasn't good enough for f27! Chris
  3. ...mainly to stack multiple avi's, crop and centre - cuts down the processing time in Registax too, which can be lengthy with my normal home lappy. Chris
  4. Tips required please> Whatever I do, I always end up with slightly muddy looking Jupiter images - any tips on getting better results at the software stage. Image best of 3000 frames two nights ago (average seeing only), Mak 180, ASI224, then PIPP, Registax and PS Elements. Chris
  5. I've had no problems at all. Chris
  6. Worth bouncing this one off SkyWatcher I would say, although without knowing the history of that particular mount (dropped?) the fault may be hard to find. Suggests poor quality control though, at least of the casting process. Having said that, I was a bit surprised when a colleague knocked a chunk off my Vixen SP mount a few years back with his EP case - it was also a brittle casting (Al?). No doubt it's a common problem with anything made to a price. I usually have a small tether on my 180 Mak which is looped around the mount head, so that if it slips out of the saddle (or something breaks!) the scope is stopped from hitting the deck. Chris
  7. If your seeing was like mine last night Michael, I'm not surprised you didn't split Omega Leonis - it's a challenge unless the sky gods are smiling down upon us with excellent seeing! Interesting how the colour descriptions of 3 and 6 Leonis vary: Sissy describes them as "pale yellow, greenish" and "deep orange/green". It will be interesting to see how you get on with the C9.25 for doubles? Chris
  8. Sounds like a nice evening John - best to play it "ad hoc" sometimes, particularly with UK observing conditions! Chris
  9. Hmm.....maybe. And yet if you look at both Jupiter and Saturn with the naked eye, Jupiter always looks blue-white, like a fainter Venus, and Saturn definitely creamy yellow (as a spectroscopist, I fret/OCD about colour rendition). Chris
  10. Nice images Michael - shows you don't have to have a C14 for planetary! Interesting that the background colour (eg between the two belts) is nearly white, or even slightly blueish; my images (and my visual view) are always the same, and yet I note that many published images (eg front cover of AN this month) show the background colour as creamy-ish, like Saturn. I wonder which is more accurate? Chris
  11. Big things come in little packages sometimes! Chris
  12. Sounds like the seeing (while it lasted) was Alpha + where you are John. Goodish here, but not excellent and rapidly deteriorating. Nice to watch the GRS creep across Jupiter though, it really is a nice colour at the moment. Chris
  13. Ah, mea culpa - I've only seen inside some large ones. Chris
  14. I'm never quite sure why Hubble should give diffraction spikes as it is an RC design, I believe? Chris
  15. A third star doesn't show in the Hubble image, but there are some websites of the slightly eccentric variety showing other companion stars. This is the Hubble image (from Wiki). Chris