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Kabi

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About Kabi

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    Nebula

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    Fife, Scotland
  1. Sorry, a polar aligned telescope follows the blue arc and will track Cassiopeia perfectly.
  2. The orange grid is the azimuthal grid. So, that is you standing in your garden with the zenith just above you. This is how you see the stars. Switch of the little telescope sign at the bottom of Stellarium (or press Ctrl+M). Set Stellarium to move fast(ish) forward. Then watch the Stars going up and down in the south. Then watch north and you see the stars going down and up. Now switch on the equatorial grid (blue) and switch on the little telescope symbol (or press Ctrl+M). You are now polar aligned like the telescope You see how the telescope (you) track the stars and follow the different arcs.
  3. You are on the right track. It is because of the angle between the two spheres or the angle between the zenith and the north celestial pole. Switch on both grids in Stellarium (bottom bar 4&5 from left) and you will see how the two grids are related to each other when you look south, west and north. When you watch you are on the azimuthal grid and the star do this 'weird' movement, but the telescope is polar aligned and therefor follows the equatorial grid following this movement.
  4. Kabi

    Holland Calling

    Hello and welcome. There is an amazing amount of information here and if you cannot find you answer just ask. Very friendly bunch here on SGL.
  5. Kabi

    Hi from Devon

    Hello and welcome to SGL!
  6. Two nights that started with clear skies. But just after polar and drift alignments were done the clouds came in. Very disappointed.

  7. Hello Jai Not sure about number 2, but your first question is easily answered. You can think of the stars as being on a sphere around our planet. Every star has a position in degrees: Declination (~Latitude) and right ascension (~Longitude). So, it is exactly the same problem as you would have mapping two houses/countries onto a flat map. One free software that can deal with geographic information is called QGIS It might be overkill for what you want to achieve though.
  8. Hello I have a Skywatcher Skymax 127 and I am looking for tube rings that will fit this telescope. The diameter of the tube is 143-144mm. I read that the SkyWatcher Tube Ring Set for the 150mm Refractor will fit, but I wondered if anyone can confirm this.. Why? I want to remove the dove tail at the bottom and add the tube rings to be able to piggy back a DSLR or a guide scope.
  9. Hi I finally got some motors on my mount (EQ5) and started to think about taking DSO images. So I read as much as possible and when the clouds disappeared for a brief period I took 40 lights of 15 sec at ISO 1600, 10 dark and 10 bias frames of M42. Scope is a SW MAK127 and an unmodded Canon 1000d to take the photos. In hindsight, I would have done a lot differently, but experience is something you get after you needed it.... So, here is my first try at a DSO:
  10. Welcome Have a look at this thread: Hope that helps
  11. Slowly getting everything together to connect my EQ5 to my laptop. I have the feeling it will look like designed by Heath Robinson :hello2:

  12. Really interesting paper. I like how much changed in the last 10 years in the understanding of our solar system. Get your telescopes out and record data. There are still things to find out!
  13. Very nice pictures. Jupiter is my favorite. I hope to take my first pictures this year of some of the planets with my Skywatcher 127.
  14. Hello Dan and welcome. My experience is that a very good telescope on a very cheap mount is useless, but even a cheap(ish) telescope on a good mount brings enjoyment. Especially if you have astrophotography in mind, my advice would be to get the best (used) motorized mount you can find. I would say an EQ5 as a minimum (you can still carry it around...) This will make your life so much easier! If you have some money to spare get a Goto mount, which will help you a lot while learning the sky. Then you have to think about buying two telescopes... one for planetary/lunar (high magnification) and one with a large diameter (lots of light) for the rest.
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