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Everything posted by toml42

  1. Thanks for the comments everyone, festoons it would appear to be then!
  2. Was observing Jupiter earlier and thought there was a particularly striking 'bruise', so i took a quick snap with my webcam. The only time i remember seeing a feature like this is in pictures after impact events, could that be what it is? Or are very dark features like that more common than I realise?
  3. Ah, coma would explain that. In future try and keep your small targets close to the centre of the frame to avoid this effect, but as has been stated, polar alignment is still very important!
  4. How to improve - do exactly what you're doing but for longer There is a hint of trailing in the ring and the dumbell, I think, so if you want to try and push for longer exposures make sure you are very exacting with your polar alignment.
  5. Very sharp, almost seems to pop out the screen! Impressive considering the number of subs
  6. It seems strange that you can't remove that band with a flat field :/ Is this image after attempting to flat field?
  7. That is gorgeous! Loads of wispy detail
  8. Between my final exams, graduation, time abroad and the APALLING weather this year, it has been some time since I've managed to get out with a scope. The last two nights have been a lot of fun just getting to use the equipment at long last! I'm a little rusty, but here's what I've got so far: M92, 30x60 second. A nice easy one to start off with, to make sure I still knew how to work everything! Decided to go for something a bit more challenging and tracked down stefans quintet. Apparently my dark frames weren't quite up to scratch. Only managed about 15 minutes of data before simultaneous cloud cover and misted mirrors ended the night, but I'm quite pleased with the initial results, might try this one again! Night 2: Decided to go back to an old favourite, 203 x 60 second subs in H-alpha. I was delighted to find that I'd managed to capture the faint outer shell, so I assembled a composite image. I put it down to the significantly darker skies I get at home! I'm glad to be back in the game, and I'm looking forward to spending more time on this forum once more!
  9. toml42

    Deep sky

  10. toml42


    From the album: Deep sky

  11. toml42


    From the album: Deep sky

  12. Oh yes, they didn't explain that part of course :/ It was pretty interesting to see that in principle the energy density to do some work was there though - although not enough to get up to relativistic speeds. http://arxiv.org/abs/0908.1429v1
  13. Am I the only person that actually sees the sun as being white? apart from when rising and setting, but then the moon looks orange too under those circumstances.
  14. I saw a paper a while back that actually proposed a starship engine under the assumption that dark matter was its own antiparticle. It was a fun piece of speculation, a gigantic dark matter scoop would gather up the particles and force them together, similar in concept to the old bussard ramjet.
  15. Very nice! I took this one yesterday on my mobile phone camera
  16. I would also bet heavily on it being some form of systematic error. But wouldn't it be fun if it were true? Here's hoping for independent tests soon...
  17. an addendum to point 1: impact craters are often enriched with iridium, an element that is very rare in Earths crust, yet common in meteors - lightning cannot account for this
  18. An open journal that has only been around for 3 years and published less than 30 papers doesn't really count as an established, reputable source - it's not clear how thorough their peer review process is, or if they have a broad enough base of specialists. In response to crater formation 1. Why are meteor fragments often associated with meteor craters on Earth? 2. Can plasmas account for minerals found in impact craters caused only by high velocity shocks? 3. Where are these lightning bolts even supposed to be coming from? Jupiter? discharges over those ranges, of that power, with no clear source require a more thorough explanation and probably entirely new physics. 4. why, when there are clearly high velocity rocks shooting around the solar system that could quite easily account for the craters with no exotic physics do we need to propose exotic solutions? the 'problems' with conventional theory really aren't apparent. 5. Making pictures that look a little bit like impact craters doesn't constitute strong evidence The real reason, from what i can gather from all this, is that the EUers cannot abide the thought that the solar system exhibits geological weathering on impact craters that points to extreme age - so have to invent alternate explanations at any cost.
  19. When i debate someone who seems very set in their ways, i usually think "I can't change their mind, no matter how hard I try" but I think it's important for me to continue because there are potential bystanders who might not have made up their minds, in this internet age especially. It's the 'Undecided voters' i really want to reach, and if that means conducting a drawn out (civil) discussion with someone who's mind i know i can't change, that's fine. If i make my points well enough, and avoid ridicule or childish insults, then that might be what someone else needs to see in order to help them make an informed decision. I am a skeptic, but i assure you, given sufficient evidence, I'd update my views on anything, and happily accept i was wrong!
  20. I think that debate, especially over things that people hold sacred, is fundamentally a good thing. Without loud arguments for heliocentrism or evolution, for example - against people who were very set in their beliefs - we'd know a lot less than we do now. individuals may not be swayed easily, but over time the pressure builds up within a society and the opinions of the next generation may be different.
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