Telescopes & Astronomy

Beginner Telescopes
Kids' Telescope

Buying your first telescope? Browse our curated selection of beginner telescopes.

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Telescope Use

What will you use your telescope for? Explore the many uses of different types of telescopes.

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Cassegrain Telescope

Choose your telescope by optical design or learn more about the different types of telescopes.

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  1. Celestron TrekGuide Yellow
    AUD $25.00

    In Stock

    • Digital Compass function provides degree, north pointing arrow and cardinal point readings. Compass Range: - 0° To 359° , 1-16 pointers (graphical)
    • Magnetic declination angle adjustable for regions with magnetic variation
    • Built-in Altimeter: measures in either meters or feet
    • Barometer (air) pressure and sea level pressure measurement in mbar/hpPa, mmHG or inHG
    • Weather forecast Icons: Sunny, Slightly Cloudy, Cloudy and Rainy
    • Time, Date and Alarm Clock
    • Built-in thermometer - °C or °F
    • Backlight for nighttime use
    • (2) long-life Lithium batteries included
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  2. Sirius Optics Budget 90 Degree Mirror Diagonal (Plastic)
  3. Micro Focuser for 50mm Guidescope 1.25 Inch
    AUD $79.00

    In Stock

    Upgrade your 50mm guidescope with this precision micro focuser, offering 10mm of smooth, fine-tuned travel for razor-sharp star focus during autoguiding sessions. Compatible with popular finderscopes from Skywatcher, Celestron, GSO, and more, it features both M42 and 1.25-inch connections to suit a wide range of guide cameras and eyepieces. A brass compression ring ensures a secure, scratch-free hold for reliable performance all night long. Use with right-angled finderscopes.

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  4. Dust Cover with M42 Female thread
    AUD $15.00

    In Stock

    Metal dust cover with M42 female thread. Learn More
  5. 2 Inch to M48 T adapter
    AUD $35.00

    In Stock

  6. Orion Lanthanum 4mm Eyepiece 1.25 Inch
    AUD $449.00

    In Stock

    • This 4mm focal length, 8-element telescope eyepiece will amaze you with vivid, panoramic views of the night sky
    • Orion LHD eyepieces feature high-index, low-dispersion lanthanum glass for exceptional control of chromatic aberrations to provide true-color views with outstanding clarity
    • All Orion LHD telescope eyepieces boast an ultra-wide 80-degree apparent field of view for an immersive viewing experience
    • Long 20mm eye relief lets eyeglass wearers enjoy the view comfortably without removing glasses
    • The fully multi-coated 4mm LHD eyepiece features a tapered 1.25" barrel which is threaded for use with 1.25" eyepiece filters
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  7. Celestron CGX Equatorial 1100 EdgeHD Telescope

    Regular Price: AUD $11,749.00

    Special Price AUD $9,799.00

    In Stock

    • 11" HD Optical Tube Assembly
    • CGX EQ Mount and Tripod
    • Celestron’s premium StarBright XLT coatings provide maximum light transmission
    • A 9x50 finderscope, 2” mirror diagonal for more comfortable viewing, and wide-angle 23 mm Luminos 2" eyepiece are all included
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  8. Sirius 3x Barlow Fully Multi-Coated with M42 Thread
    AUD $59.00

    In Stock

    The Sirius 3x Barlow lens triples your telescope's magnification, letting you explore lunar craters and planetary details with stunning clarity. Its fully multi-coated, 3-element apochromatic design minimizes chromatic aberration for crisp, sharp images, while the built-in M42 thread doubles as a T-adapter for easy DSLR or SLR camera attachment.

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  9. Celestron CGX-L Equatorial Mount and Tripod
    AUD $8,549.00

    In Stock

    The Celestron CGX-L Equatorial Mount and Tripod is a heavy-duty computerized mount built for serious astrophotographers and backyard observatory setups. With a generous 75 lb load capacity, massive 70 mm stainless steel tripod legs, and internally routed cabling for snag-free remote operation, it delivers exceptional stability and precision tracking for even the largest optical tubes and imaging rigs.

    • Increased 75 lb load capacity. Exceptional load capacity to weight ratio
    • Additional Aux accessory ports and autoguider port on the Dec axis for better cable management
    • Larger 144 mm diameter worm wheels to better and more accurately drive heavier loads
    • Longer 270 mm dovetail saddle to better support larger optical tubes
    • Massive 70 mm stainless steel tripod legs with a wider stance for improved stability under heavy loads
    • New accessory tray holds three 1.25” and two 2” eyepieces with an upright stand for your smartphone or tablet
    • Heavy duty, 31.5 mm stainless steel counterweight shaft to support additional counterweights
    • Spring-loaded brass worm wheel and stainless steel worm gear reduce friction and provide optimum gear mesh
    • Internal cabling for worry-free remote operation. Power input and lower accessory ports remain stationary while the mount slews to avoid snags
    • Includes Celestron's new PWI telescope control software, co-developed by PlaneWave Instruments. Software features multi-point mount modeling for extremely precise pointing accuracy
    • Adjustable EQ head position to optimize center of gravity over the tripod and fully utilize the increased 3°-65° latitude range
    • Integrated handles for easy transport and portability
    • All-new ergonomically designed dovetail clamping knobs
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  10. Celestron Dovetail Bar 11 Inch CGE Wide
    AUD $99.99

    In Stock

    Wide dovetail bar to fit CGE or Losmandy style saddles

    Learn More

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