Spares Parts

Filter By











Spares Parts

Spares for mainly telescopes but we can also

supply some parts for other optics as well.


Please contact us if you need a service quote.

Celestron SkyWatcher astronomy spare parts telescopes binoculars Grovers

Spares Parts

There are 42 products.

Showing 1-42 of 144 item(s)

Active filters

  • Choose Your Model On The Right -

    Evolution 9.25, Evolution 6-8, Nexstar 4/5 SE, NexStar 6/8 SE, CPC Series, Advanced VX & CGEM

    SkyProdigy choose SLT

    "CGEM DX" & "CGE PRO" Have 2.75" Diameter Legs - Ask For Availability

    SLT Tripod legs have a 1.25" diameter

    SE Tripod legs have a 1.5" diameter

  • AstroMedia Prism Kit

    Price £7.49

    A kit for a prism made from acrylic glass. Cast acrylic glass blank with all necessary polishing material to produce a highly transparent prism, instructions included. 

    Suitable for children.

  • A high quality flat mirror made from tempered float glass, with aluminium and quartz coating. No ghost images because the reflective surface is on the front of the mirror!

  • AstroMedia Spherical...

    Price £16.49

    The main mirror used in our Newton Telescope: made by BAADER Planetarium from tempered float glass, with aluminium and quartz coating. An excellent mirror for DIY telescopes!

    Mirror diameter: 70 mm

    Thickness: 5 mm

    Focal length: 450 mm

  • High quality lenses made from acrylic glass. The budget solution for all optical experiments. Diameters between 13 and 62 mm, a whole range of different focal lengths.

    C: convergent lens

    D: divergent lens

  • High quality single lenses and achromatic systems of two lenses. Ideal for experiments and self-made optical instruments. Diameters between 18 and 50 mm, a whole range of different focal lengths. All lenses are surplus from production lines of optical instruments.

    • 531+532OMG and 550-569OAL
    • Diameters: 18 to 50 mm
    • Focal lengths: +26.5 to +250 mm
  • 12 month Warranty

    This is the GoTo mount and the hand controller. It does NOT include the tripod

    CHOOSE the model required on the right.

    If you have a different OTA (90, 127 or other) then the OTA "dovetail" mount plastic cover may need removing. This is easily done and just 4 screws.

  • NexStar+ Hand Control works with Celestron altazimuth (AZ) mounted computerized telescopes.
    Compatible with Advanced VX, CGEM, CGEM DX, and CGE Pro series telescopes and mounts.
    Flash upgradeable via the Internet; latest updates can be found at
    40,000-object database with RS-232 connection for computer control.
    Dual line, 16-character LCD screen with adjustable backlighting.

  • Sold individually (1), this cover is for the objective end of the binoculars - as opposed to the eyepiece end that is raised to the eye.

  • Primary Mirror assembly for Astromaster 130 / 130MD 114 & 76 mm & PowerSeeker 114 models.

    You may prefer to buy the mirror already in the metal tube. See below

  • 270mm is suitable for Astromaster 130, 130MD & 90mm with CG3 mount. Diameter is approx 13mm.

    We can also supply the 220mm version for the CG3 - eg Astromaster 130EQ 90 EQ

    • Designed by astronomers for astronomers, this premium finderscope allows you to precisely zero in on your target
    • Projects a dual-circle reticle, not a red dot that can obscure your subject
    • Larger 40 mm optical window offers a wider field of view so you can acquire targets quickly and easily
    • Brighter LED for easy visibility during the day
    • Easy dovetail connection; no tools required
  • C8 Optical Tube Assembly as used in the best selling Celestron Evolution 8. Sold without eyepiece, visual back or finderscope. Ideal if you have a damaged telescope or want to upgrade to the magic 8 inch aperture.

  • Celestron CG-4 Mount Only

    Price £110.00

    The Celestron CG-4 is the mount that is supplied with all Celestron Omni XLT Telescopes. No counterweights, slow motion controls or tripod included.

    Image is for illustration only.

  • This is ONE tripod leg only.

    Fits Celestron 90, 102,127 & 130. SLT & SkyProdigy Telescopes

    Also suitable replacement for Sky-Watcher AZ-GT / SupaTrak 102,127,130 & 114

    Colour of plastic parts may vary from the original part.

  • Choose To Extend Your warranty for only £49.00

    A reducer will brighten your view, seeing more objects & the view is optimised for imaging (photography).

    A lens hood will shield stray light & dew fall.

  • This is the Cosmos 90 Optical Tube (OTA) Only. It does NOT include eyepieces, diagonal or star pointer. Also suitable for Inspire 90 Telescope.

    Sold without original packaging.

    910mm Focal Length F10. 90mm Objective

  • A heavy-duty tripod with 1.75" diameter stainless steel legs and a centre bolt connector with 3/8" tripod thread, complete with accessory tray

    Extends from 83.5cm to 115cm. Compatible with the Sky-Watcher 21.5cm extension tube 20313

    Can be used to upgrade the standard aluminium tripod supplied with the AZ5, AZ PRONTO, AZ-GTi, & AZ-EQ AVANT mount/telescope models, providing much greater stability

  • Allview-GT mount

    This PCB replaces the original main board. Before doing the exchange, we recommend finding the error in advance; otherwise, the new PCB may be damaged also.

  • Used for indoor display only - as new! This is the tripod only & only suits the Cosmos 90 & Astro-Fi series of telescopes. Sold without original packaging & bolt that attaches accessory tray (use the original one).

    AstroFi 90

    Cosmos 90

    AstroFi 102

    AstroFi 125

    AstroFi 130

  • Celestron Astromaster...

    Price £64.95

    Replacement tripod for a Celestron AstroMaster 130, 130MD, 114, 90 & 76. It will not fit any other telescope.

    It does not include the mount or optical tube - see image

    Choose Variety On Right

    • Install this motor drive on your AstroMaster or PowerSeeker equatorially mounted telescope and start tracking the stars!
    • Right Ascension tracking compensates for the Earth’s rotation.
    • Can be used in the Northern or Southern Hemisphere.
    • For Celestron CG-2 & CG-3 equatorial mounts.
  • This is the mount & tripod only. Go-To works with Celestron SkyPortal app (iOS & Android).

    Suitable for dovetail fitted OTAs such as refractors up to 90mm, Reflectors up to 150mm (Cassegrain/Newtonian).

    1 Year Warranty

  • CHOOSE the model required on the right

    "AstroMaster 130" & "Nexstar 130SLT" are the same. NexStar SE range are c5 c6 c8

    SCT c6 c8 c9.25 c11 c14 inc Edge HD are available

    Ask if you can not see your requirement