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PeterJB

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About PeterJB

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    http://www.facebook.com/PBrooklyn1

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    Wiltshire, United Kingdom
  1. The one at 9 O'Clock would have been a Star. Iapetus was at more of a 7 O'Clock position. Rhea, Dione, Tethys and Enceladus were all very close together last night, so your mystery object could have been any one of them.
  2. Phobos and Deimos are unlikely to have formed with Mars. They were probably thrown out of the asteroid belt by Jupiter and were caught in Mars' gravity. Venus and Mercury's hill spheres are both much smaller than the Earth's. The environments around both planets have been explored extensively by spacecraft. No evidence of moons has been found.
  3. They open and close because of Saturn's axial tilt. They appear fully open at the Saturnian solstices and then edge-on at the equinoxes.
  4. Would something like a 7.5 mm or 6.3 mm work better then?
  5. I own an f/5 6 inch reflector with 1.25" 25 mm and 10 mm eyepieces with a 42 degree FOV and a 2x Barlow lens. I'm considering getting a 1.25" 5 mm long eye relief eyepiece with a 45 degree FOV which would give a magnification of x300 with the Barlow in. This would also give a FOV of 0.15 degrees. The specification of my scope says a maximum magnification of 300x. Would this eyepiece work well with the Telescope?
  6. Over the past couple of weeks I've been observing Mars and keep noticing a small out focus light point near it. I've been assuming it was either Phobos or Deimos because Mars hasn't appeared to move towards or away from it. I use a 6 inch reflector and a 5mm eyepiece with a 2x Barlow lens in, giving me a field of view of 0.28 degrees, at x150 magnification. Not sure if that's strong enough to see the Martian Moons with though.
  7. The fact that all the gas giants possess rings suggests that their greater masses enable them to rip apart moons and create stable ring systems.
  8. I can't wait to see Saturn for the first time, I'm just not patient enough to stay out late enough to see it!
  9. We're pretty much in the best place in the Solar System for astronomy. If you could stand on Mercury, Venus and the Earth would be stunningly bright, but Mars would be difficult and the gas giants not terrible spectacular. From Venus (if it was cloudless) The Earth, Moon and Mercury would be very good, but it would hinder the outer planets. Mars would be good for the Earth and Moon but wouldn't make much different to the outer planets, except Jupiter. The gas giants wouldn't be good for observing the inner planets, and they're so far apart from one another that they wouldn't appear much brighter than from here. Neptune is arguably the worst place for astronomy in the solar system. The inner planets would be virtually impossible to see, and Jupiter Saturn and Uranus would be tiny crescents. The Kuiper Belt objects would be too small to observe properly too. But the Sun would be so dim that you would be in constant darkness!
  10. I've been meaning to go for a while, I'll venture down there eventually.
  11. I can make out a clear shape to the Orion Nebula, but colour is difficult. The Crab Nebula looks great though, so many stars!
  12. I've often wondered what the fate of the Gas Giants and Kuiper Belt objects will be when the Sun dies. Mercury, Venus and Earth will almost certainly be consumed by the red giant sun, Mars would probably destroyed when the Sun finally sheds it's outer layers. But would the gas giants survive and continue to orbit the white dwarf? I'd have though at least Neptune would be far enough away to survive it.
  13. I'm not an official member but I've been to every observing session since September.
  14. Been observing Jupiter for a while with other peoples scopes. Was the first thing I went to last Sunday when I got to try my scope for the first time. Bands and moons clearly visible. Would love to see the Great Red Spot some day!
  15. Hello there! Been into astronomy for about a year now, joined my local astronomy club a few months back and recently acquired a Newtonian Reflector! My Solar System knowledge is pretty sound but hopefully I can learn more about Deep Sky objects in these forums!
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