Telescopes & Astronomy
Beginner Telescopes
Buying your first telescope? Browse our curated selection of beginner telescopes.
Shop by Use
What will you use your telescope for? Explore the many uses of different types of telescopes.
Shop by Type
Choose your telescope by optical design or learn more about the different types of telescopes.
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AUD $69.00In Stock
The Celestron Dew Heater Ring is the ideal dew prevention solution for your Celestron telescope.
The Dew Heater Ring permanently mounts to your 5" Celestron Schmidt-Cassegrain optical tube, replacing your retaining ring, so you'll never be caught without it.
The installation process is quick and easy (follow the manual for instructions).
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AUD $79.00In Stock
The Celestron Dew Heater Ring is the ideal dew prevention solution for your Celestron telescope.
The Dew Heater Ring permanently mounts to your 6" Celestron Schmidt-Cassegrain optical tube, replacing your retaining ring, so you'll never be caught without it.
The installation process is quick and easy (follow the manual for instructions).
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AUD $424.99In Stock
- Fits 11” Schmidt-Cassegrain, EdgeHD, and RASA telescope tubes
- Helps prevent dew formation on the Schmidt corrector lens
- Prevents off-axis glare from entering the optical system
- Rigid body with a velvet-lined interior surface to reduce stray light
- Two adjustable clips for easy installation and disassembly
- Cable management at the base of the shield —perfect for using the Fastar/Hyperstar configuration or using in conjunction with the Celestron Dew Heater Rings
- An included cover cap keeps your telescope free from dust when not in use
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AUD $24.99Backorder Available
The Celestron Thermistor for Smart Dewheater Controllers works in conjunction with Celestron's Smart DewHeater Controllers to allow "smart" control of third-party dew heaters.
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AUD $129.00Backorder Available
The Celestron Dew Heater Ring is the ideal dew prevention solution for your Celestron telescope.
The Dew Heater Ring permanently mounts to your 8" Celestron Schmidt-Cassegrain, EdgeHD, and RASA optical tube, replacing your retaining ring, so you'll never be caught without it. The installation process is quick and easy (follow the manual for instructions).
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AUD $169.00Backorder Available
The Celestron Dew Heater Ring is the ideal dew prevention solution for your Celestron telescope.
The Dew Heater Ring permanently mounts to your 9.25" Celestron Schmidt-Cassegrain and EdgeHD optical tube, replacing your retaining ring, so you'll never be caught without it.
The installation process is quick and easy (follow the manual for instructions).
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AUD $225.00Backorder Available
The Celestron Dew Heater Ring is the ideal dew prevention solution for your Celestron telescope.
The Dew Heater Ring permanently mounts to your 11" Celestron Schmidt-Cassegrain (manufactured 2006 or later), EdgeHD, and RASA optical tube, replacing your retaining ring so you'll never be caught without it.
The installation process is quick and easy (follow the manual for instructions).
Learn More
Why buy from Sirius Optics
Queensland's largest telescope showroom and warehouse
Run by astronomers and nature lovers, not sales people
Expert advice and lessons
Secure checkout with multiple payment options
30 day returns (T&Cs apply)
