AstroSystems Telescope Covers


Safely waiting darkness Water vapor from interior evaporates, passes through, 

droplets from the exterior run off.

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 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.

  AstroSystems Cover
Solar Scope Cover
"Storm" Shield Plastic Trash Bags/Tarps
Size/Shape Fitted for vertical and horizontal position Cylindrical - must be vertical or angled Cylindrical - must be vertical or angled Sheet or bag
Use All events and indoor storage Star Parties Star Parties In a pinch
Material Polyurethane coated Nylon + Silicone Polyethylene./Alum./Polyethethylene Mylar/AL/Polyethylene Polyethylene or canvas
Durability/lifetime 10-20 years 12-18 months 6-18 months Temporary
Heat rejection Reflective white (~90%) Reflective silver (~90%) Reflective silver (~90%) Usually dark colors (<70%)
Water resistance Excellent-good Excellent Excellent Good-poor
Breathability Excellent-good Poor Poor Good-poor
Tear/Puncture/abrasion Excellent-good Excellent-good Poor Poor
Wind resistance Excellent Good (degrades with sunlight) Poor (degrades with sunlight) Very poor
Dust resistance Excellent-good Good-poor (static pick up) Good-poor (static pick up) Poor (static pick up)
Cost Moderate High Moderate Low
Cost vs.  life Low High High Moderate

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.

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

Size A Diameter B C D
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    
           
Size A Diameter B C D
 f/4.2 - f/5          
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
           
Size A Diameter B C D
f/4.2 or less          
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

 

The drawing at right shows the cover laying flat and will be 2 layers, as in an envelope.

SCT / Refractor

Size Price ShipWt.   Size Price ShipWt.
8" SCT $38.00 2 lbs.   14" SCT $47.00 3 lbs.
10/12 SCT $42.00 3 lbs.   16" SCT $54.00 4 lbs.
        RC/Refractor $65.00 5 lbs.

Newtonian f/ratio 4.2-5.0

Size Price ShipWt.   Size Price ShipWt.
10-12" N $98.00 8 lbs.   22" N $150.00 14 lbs.
14.5" N $103.00 9 lbs.   24-25" N $190.00 15 lbs.
16" N $114.00 10 lbs.   28" N $220.00 18 lbs.
18" N $120.00 11 lbs.   30" N $230.00 20 lbs.
20" N $125.00 12 lbs.   32" N $250.00 22 lbs.
        36" N $280.00 25 lbs.

Newtonian f/ratio 4.2 or less

Size Price ShipWt.   Size Price ShipWt.
10-12" NS $96.00 8 lbs.   22" NS $148.00 14 lbs.
14.5" NS $101.00 9 lbs.   24-25" NS $187.00 15 lbs.
16" NS $112.00 10 lbs.   28" NS $215.00 18 lbs.
18" NS $118.00 11 lbs.   30" NS $225.00 20 lbs.
20" NS $124.00 12 lbs.   32" NS $245.00 22 lbs.
        36" NS $270.00 25 lbs.

 

The following table is a guide, large finders, accessories and mounts may require the next larger size.

     Telescope Size Chart

  Size Astrosystems Cover Cage Case Transport Case     Size Astrosystems Cover Cage Case Transport Case
CelestronSCT 8" 8" SCT       Orion/GSO/Hardin/Zhumell 8" 10/12 SCT    
  9.25" 10/12" SCT         10" 14" SCT    
JMI 18"NGT 18"NS         12.5" 16" SCT    
Meade SCT 8"                  
  10" 10/12" SCT                
  12" 14" SCT       Starmaster        
                     
Meade Lightbridge 12" 12.5" N       Starsplitter        
Meade Lightbridge 16" 16" N                
            TeleKit 10"  10-12    
Obsession             12.5/13.1"  10-12 12/14 12
"Classic" 12.5" 12.5" N 12.5/14.5 12     14.5"  14.5 12/14 14
  15" 14.5" N 12.5/14.5 14     16"  16 16/18 16
  18" 18" N 16/18 18     17.5/18"  18 16/18 18
  20" 20" N 20/22 20     20"  20 20/22 20
  25" 24/25" N 24/25 25     22"  22 20/22 22
              24"  24-25 24/25 24
Obsession             25"  24-25 24/25 25
"UC" 15"UC 14.5" NS         28"  28 30 30
  18"UC 18" NS         30"  30 30 30
  22"UC 22" NS         32"  32 32 32

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Upper Cage Carry Case

*NEW*   The Cage cases have been redesigned, now round and are more conformal with and opening cover.  The 300 denier sealed nylon case will protect your upper cage while the telescope is being stored or transported.  They feature a drawstring and cord lock.  Fits Discovery, Obsession, Starmaster and Starsplitter and many other popular makes.

Telescope Size Diameter (inside) Height (inside)
10" $35.00 ShipWt 2 lbs. 17 20
12" - 13" $37.00 ShipWt  3 lbs. 20 20
14" - 15" $39.00 ShipWt  3 lbs. 22 20
16" $42.00 ShipWt  4 lbs. 23 20
17.5" - 18" $46.00 ShipWt  5 lbs. 26 20
20" $49.00 ShipWt  5 lbs. 28 20
22" $52.00 ShipWt  5 lbs. 30 20
24" - 25" $55.00 ShipWt  6 lbs. 34 22
28" $59.00 ShipWt  6 lbs. 37 22
30" $65.00 ShipWt  6 lbs. 39 22
32" $69.00 ShipWt  7 lbs. 41 22

 

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Truss Case

*NEW*  Heavier vinyl coated nylon.  This heavy duty nylon case protects your truss poles when traveling or storage.  Shoulder strap is included and the new design keeps the strap attached to the case.  Size 32"-60" holds trusses up to 2" (total) diameter and 70"-96" up to 2.5" (total) diameter to accommodate foam covered trusses.

Up to 32" trusses $39.00 Shipweight 2 lbs.
Up to 40" trusses $42.00 Shipweight 2 lbs.
Up to 50" trusses $45.00 Shipweight 4 lbs.
Up to 60" trusses $50.00 Shipweight 5 lbs.
Up to 70" trusses $55.00 Shipweight 6 lbs.
Up to 96" trusses $60.00 Shipweight 8 lbs.

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Telescope Transport Case

The AstroSystems transport cover is made to protect your telescope while disassembled in the field or while being transported.  The heavy duty shell is a PVC coated Nylon designed to repel dust, dirt and moisture. It is extremely tear and abrasion resistant. The liner is a heavy, 12 oz. Flannel to cushion and protect your investment.  The transport case has cut-outs to clear the transport handles so it can be left on while moving.  Sturdy attached bungees with hooks fasten each side at the corners.  The cover has slots at the bottom corners to clear bottom mounted transport handles so the telescope can be easily moved with the cover in place.  Configured for telescopes that have both transport handles parallel to the ground.

10" telescopes $99.00 Shipwt.  4 lbs.
12.5" telescopes $101.00 Shipwt.  4 lbs.
14.5" telescopes $105.00 Shipwt.  5 lbs.
16" telescopes $109.00 Shipwt.  5 lbs.
18" telescopes $115.00 Shipwt.  6 lbs.
20" telescopes $119.00 Shipwt.  8 lbs.
22" telescopes $130.00 Shipwt. 10 lbs.
24" telescopes $140.00 Shipwt. 12 lbs.
25" telescopes $150.00 Shipwt. 14 lbs.
28" telescopes $160.00 Shipwt. 16 lbs.
30" telescopes $170.00 Shipwt. 18 lbs.
32" telescope $180.00 Shipwt. 20 lbs.

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