Page 78 - All About Space 68 - 2017 UK
P. 78

STARGAZER





                                                                    How          to…




















        How          to…


        Prepare                         your




        telescope                              for          a      new




        season                       of        observing




        If you haven't used your instrument much over the summer,
        now's the time to get it ready for the autumn and winter



                                      ones, so while we may keep the optics   components; each scope is different, so   together a moving part; use your best
        You’ll     need:              generally clean and in good order, it   there are no rules here, just use what   judgement and common sense.
                                      is often easy to forget that the mount   works. If you are not sure what you are   Finally, make sure your optics
        ✔ Soft clean cloth
                                      and drive system, if there is one, is   doing, seek advice from an astronomer   are clean and properly aligned. Be
        ✔  Lithium grease             just as important. With a new season   or an astronomical society, especially   aware that telescope optics are easily
        ✔  Screwdriver set            of observing upon us, what should   if you have a reflector telescope that   scratched and damaged, and so great
                                      we do to make sure that everything   needs re-collimating.  care is needed. Take advice or research
                                      is in good order so that our telescopes   Cleaning and greasing moving parts,   on the internet to find out how to
        As our main instrument that we use   keep working like they did the day   such a gears, is always a good idea   properly clean lenses and mirrors,
        to connect us with the night sky, our   we bought them? Some things might   – you will need to use good-quality   and remove and reinstall them if
        telescopes are, without a doubt, very   seem obvious, such as blowing the   lithium grease as it is able to work well   necessary. Seek professional help if
        important; but do we lavish the care   dust off, but there are things to help   at low temperatures, unlike silicone   you need it, as a single scratch on
        on them that they need and deserve   make the operation of the mount and   grease, which can become 'sticky'.    the optics can ruin a perfectly usable
        to keep giving us those breathtaking   the optical system smooth, and keep   Tightening screws and bolts is also   telescope. Once you've got your scope
        views and images of the heavens?  delivering the images that we would   important, as they can work loose over   running smoothly, you'll be ready to
          Telescopes are comprised of both   hope for. You will probably need a few   time, but make sure you don't wind   enjoy all that the autumn and winter
        optical components and mechanical   tools to tighten things up and realign   them too tight if they are holding   skies have to offer.


         Tips & tricks


          Make sure your     Look after your     Clean the gears    Look out for        Ensure your optics   Spruce up your
          optics are clean   screws and bolts    Get rid of old grease   backlash       are aligned        instrument
          Always use a soft clean   If you are removing   from gears before adding   Make sure that gears are   Clean and align optics,   To keep your telescope
          cloth to remove dirt   screws and bolts from   new ones. This will keep   meshing correctly, not   making sure you are very   clean and running
          and marks from your   covers or housings, keep   everything running   too slack or too tight, and   careful, and seek advice   smoothly, it's always a
          telescope tube, dampen   them on a tray to prevent   smoothly and will limit   make slight adjustments   if you are not sure about   good idea to give it an
          it slightly if necessary.  them from going missing.  layers of oil.   if necessary.  how to do it.  annual service.


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