Home USED 10"-12" Newtonian Telescope Cover
USED 10"-12" Newtonian Telescope Cover
USED 10"-12" Newtonian Telescope Cover

    Astrosystems

    USED 10"-12" Newtonian Telescope Cover

    $ 84.00
    $ 84.00
    Only 1 Left!

    In Stock

    Our Take

    A good cover is essential at multi-day star parties. When you finish observing for the night, simply pull this cover over your scope to protect it until you are ready to use it again the next day. It will shield your instruments from dust and rain so you can leave them set up during the day. The white color will prevent your telescope from getting too hot in the sun, speeding up the evening cool-down time.

    USED Telescope Cover

    This cover is in great condition. Comes in original drawstring bag.

    Description

    Effectively cover your Newtonian, Schmidt Cassegrain, Maksutov or Refractor  telescopes both at star parties and in storage.  This white, 400 denier, polyurethane coated nylon fabric will reflect the sun, resists dust and moisture and is long-lasting.  Our cover allows positioning in the horizontal when not being used so that high winds won't knock them over.  It has a draw cord at the bottom to give a snug fit around the bottom.  A sturdy 1" nylon strap (Newtonian models) is provided to attach a weight to the top end, keeping the wind from standing the scope up or turning it into a cosmic weathervane.  The water and dust resistant polyurethane inner coating rounds out a complete protection package for extended observing sessions in the bush.  The cover exterior is sprayed with a water repellant to add further protection from the elements.  The Newtonian cover comes with a storage bag and secondary mirror cover, both with draw pulls.  Worth every penny in strength, longevity and protection.  The AstroSystems cover is not intended for continuous outdoor exposure.  To retain the maximum water repellency, it is necessary to respray the cover once a year with silicone water repellant.  A 12 oz. aerosol can will spray a 18" N cover twice, a 16" SCT cover four times.  Available at hardware or discount stores for under $5.  We use the brand "weatherguard", brown can with orange top.

    The following tables give the nominal outside cover dimensions.  The Newtonian covers are sized to fit the TeleKit but will also fit common truss Newtonian telescopes manufactured by Discovery, Obsession, Starmaster and Starsplitter.

    Available in two lengths, the "N" designation is for a f/ratio of 4.2-5 or "NS" for a f/ratio of 4.0 or less. 

    Catadioptric/Refractor

    Size A Diameter B
    8" SCT 28 18 38
    10-12" SCT 32 20 47
    14" SCT 37 24 57
    16" SCT 45 28 73
    Refractor 45 28 96

     

    Newtonian f/4.2 - f/5

    Size A Diameter B C D
    10-12.5" N 52 33 30 28 100
    14.5" N 58 37 32 32 110
    16" N 63 40 34 34 119
    18" N 66 42 36 36 129
    20" N 70 44 38 38 139
    22" N 74 47 38 44 161
    24-25" N 80 51 40 46 175
    28" N 95 60 50 58 194
    30" N 94 62 54 61 208
    32" N 98 62 52 60 226
    36" N 120 76 70 76 276

     

    Newtonian f/4.2 or less

    Size A Diameter B C D
    10-12.5" NS 52 33 30 28 90
    14.5" NS 58 37 32 32 98
    16" NS 63 40 34 34 105
    18" NS 66 42 36 36 113
    20" NS 70 44 38 38 121
    22" NS 74 47 38 44 141
    24-25" NS 80 51 40 46 153
    28" NS 94 60 50 58 168
    30" NS 94 60 50 60 178
    32" NS 98 62 52 60 196
    36" NS 120 76 70 76 241

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