AstroSystems

Discounts, Overstock and One-of-a-Kind

 All these items are limited supply and will not be available when supplies are exhausted.  Please refresh your browser to confirm availability.  Updated 04/09/24


 

Spiders

Overstock spiders.  price does not include shipping.

Size (in.) Style

Vane ends

    /vane

Center width Price $ # Available
4.88 1 1 1.5 22.00 1
8.75 1 1 1.5 26.00 1
13.0 1 1 1.5 28.00 1
           
12.35 2 1 2.5 28.00 1
16.75 2 1 2.5 32.00 1
17.65 2 1 2.5 32.00 1
           
13.25 3 2 2.5 42.00 1
25.5 3 2 2.5 46.00 1

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Round Groundboard

Gives excellent movement in Azimuth.  Two bearimg sets and a Teflon pad allow smooth movement, even on textured laminate.  It is primed so will need a clearcoat to finish.

18.95" OD

0.7" thick

Feet 4" diameter x 1.45" tall with protective laminate on the bottom

3/8" center thread

radius at center of bearings 7.3"

radius at center of feet 7.3"

Bearings and Teflon have a 0.18" height

 

$95.00 plus shipping


12V 3.4Ahr gel cell batteries

These are new, overstock, 10 available.

5.25" Long

2.6" wide

2.45" tall (add 0.25" for contacts)

Contacts are 0.25" spade

$15.00 plus shipping

 


 

Wood Discs

Baltic Birch discs - CNC cut round, 1/4" indentation at the center.

11.2" diameter x 0.5" thick  $8.00 each + S&H    (2 available)

13.7" diameter x 0.5" thick  $12.00 each + S&H    (22 available)

17.2" diameter x 0.7" thick  $18.00 each + S&H    (1 available)

19.2" diameter x 0.7" thick  $22.00 each + S&H    (10 available)

23.3" diameter x 0.7" thick  $25.00 each + S&H    (1 available)

 

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Cage Rings

Baltic Birch Cage Rings, holes part way through for cage spacers.  Some have minor veneer tearing on one side.

Dimensions are in inches.

Telescope Size Inside Diameter Outside Diameter Thickness Available Price ea.* 
10 11.8 14.0 0.5 4 10.00
10 11.8 14.0 0.7 1 12.00
28.0** 30.0 33.2 0.7 3 45.00**

*shipping not included

** all 3 make a set, 2 cage rings, one connecting ring

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Spoked Bearings

Non-Spoked bearings

Wood Altitude Bearings

Baltic Birch spoked and non-spoked altitude bearings, supplied with textured laminate.

Bearing Diameter Thickness Available Pairs Price (pair) shipping not included
       

 

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Lycra Light Shroud

Our light shrouds offer performance and great looks in one package.  This super stretchy material looks great because it is always conforms to the shape of the telescope.  It will not stretch or fade and the inside is flat black. The shroud keeps stray light out of the optical system and more importantly, keeps body heat from crossing the optical path.  This material also has the characteristic of not becoming dripping wet in severe dew conditions.    (Shrouds WILL NOT work on Obsessions of 20" and over).

Telescope Size (Approx.) Top  Bottom  Length Price Shipping
8.0 10 8 35 20.00 8.00
8.0 10 11-12 32 20.00 8.00
8.0 10 11-12 41 20.00 8.00
10.0* 10 10 29 20.00 8.00
10.0* 10 10 29 20.00 8.00
           

Top Dimension: Cage diameter (+-1")

Bottom Dimension: Mirror box side or circumference around trusses at bottom divided by 4 (+-1")

Length: The length is the mirror box to cage separation (+- 1.5").

* These fit the Lightbridge 10" and similarly proportioned truss scopes.

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