Download PDF by Ian V. Hogg: Allied Artillery of World War Two

By Ian V. Hogg

ISBN-10: 1861261659

ISBN-13: 9781861261656

Allied Artillery of worldwide struggle

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The idea is to fill the network drive and then remove it from the system and install another network drive. However it is quite possible that at some point I turn “chicken” and spend a month or two burning all the original FITS data onto DVDs. I highly recommend you get into the habit of doing this from the beginning of your imaging career and do not follow the lazy route I have chosen, which I am sure will one day end in tears. You can actually connect your observatory computer to your indoor desktop computer using either cable or wireless if the distance is not too great.

This will give you a wider field than a longer focal length system, so a deep-sky setup will not be good for planetary imaging, and it will not give you good resolution on small deep-sky objects like planetary nebulae. You will need to very carefully select your CCD to match your optical imaging system. Remember, for reasonable resolution you will want to keep below about 4 arcseconds per pixel imaging scale, and you will want as big a CCD as you can afford to get the biggest field of view. Big apertures mean reflectors rather than refractors, and small f# reflector systems typically mean Schmidt cameras, Hyperstar systems, or Newtonians with lens reducer/correctors.

Telescope, it will take an inordinate amount of time. However, with practice, you will quickly get a “feel” as to how you need to move the secondary mirror to get the central out of focus star pattern looking symmetric. The CCD Camera There are a large number of CCDs suitable for astronomical imaging on the market. There are sub-mega pixel, multi-mega pixel, black and white, single shot colour, imaging and autoguiding CCDs. It is very bewildering; especially when there’s all this talk about the field of view you get with different telescope/CCD combinations and the even more puzzling question of how many “arcseconds per pixel” your system delivers.

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Allied Artillery of World War Two by Ian V. Hogg


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