{"product_id":"celestron-usb-cooling-fan-for-dobsonians","title":"Celestron USB Cooling Fan for Dobsonian Telescopes","description":"\u003ch2\u003eCelestron USB Cooling Fan – Fast, Efficient Cooling for StarSense Explorer 10” \u0026amp; 12” Dobsonian Telescopes\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eStart observing sooner and enjoy sharper views\u003c\/strong\u003e with the \u003cstrong\u003eCelestron USB Cooling Fan\u003c\/strong\u003e, specially designed to accelerate the cooldown time of your \u003cstrong\u003eStarSense Explorer 10” and 12” Dobsonian telescopes\u003c\/strong\u003e. Whether you’re eager to begin your observing session or simply want the best possible optical performance, this powerful yet compact fan helps bring your primary mirror down to ambient temperature faster—\u003cstrong\u003ereducing thermal distortion\u003c\/strong\u003e and improving image clarity right from the start.\u003c\/p\u003e\n\u003ch3\u003eWhy You Need a Cooling Fan for Your Dobsonian\u003c\/h3\u003e\n\u003cp\u003eWhen a telescope’s primary mirror is warmer than the surrounding air, it can create heat currents that blur or distort your view—especially noticeable when observing the Moon, planets, or star clusters. A cooling fan helps eliminate these currents by equalising the mirror’s temperature with the outdoor environment more rapidly.\u003c\/p\u003e\n\u003cp\u003eWith the \u003cstrong\u003eCelestron USB Cooling Fan\u003c\/strong\u003e, you’ll experience:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eFaster thermal equilibrium\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eCrisper, better-focused images\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eMore observing time and less waiting\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eIt’s the perfect accessory for astronomers who want to \u003cstrong\u003eget the best performance from their Dobsonian\u003c\/strong\u003e right out of the gate.\u003c\/p\u003e\n\u003ch3\u003eEasy USB-Powered Operation – No Bulky Power Supplies Needed\u003c\/h3\u003e\n\u003cp\u003eUnlike many competing models that require 12V external power or disposable batteries, the Celestron Cooling Fan is \u003cstrong\u003eUSB-powered\u003c\/strong\u003e, offering unmatched convenience and compatibility with a wide range of power sources, including:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003ePortable USB \u003cstrong\u003epower banks\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eAC USB wall adapters\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eUSB ports on telescope power stations\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eIt operates on \u003cstrong\u003e5V USB power\u003c\/strong\u003e, yet internal testing shows it \u003cstrong\u003eoutperforms many 12V fans\u003c\/strong\u003e in airflow and cooling speed—making it more efficient, more portable, and easier to use in the field.\u003c\/p\u003e\n\u003cp\u003eOnce the mirror has cooled and you're ready to observe, simply unplug the USB cable and \u003cstrong\u003esecure it using the integrated cable clip\u003c\/strong\u003e on the rear of the telescope for tidy cable management.\u003c\/p\u003e\n\u003ch3\u003eSecure Mounting for Compatible Telescopes\u003c\/h3\u003e\n\u003cp\u003eThe fan mounts directly to the \u003cstrong\u003erear cell of the StarSense Explorer 10” and 12” Dobsonian telescopes\u003c\/strong\u003e. It’s also compatible with many \u003cstrong\u003ethird-party Dobsonian and Newtonian reflectors\u003c\/strong\u003e that feature a compatible rear-cell mounting pattern.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eMounting Requirements:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003eFour \u003cstrong\u003eM4 x 0.7 threaded holes\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eSquare pattern with \u003cstrong\u003e71.5mm spacing\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eBe sure to check your telescope’s rear cell for this configuration to ensure compatibility.\u003c\/p\u003e\n\u003ch3\u003eKey Features:\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003eSpeeds up mirror cooling for \u003cstrong\u003esharper, distortion-free views\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eUSB-powered\u003c\/strong\u003e – works with portable power banks or wall adapters\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eNo bulky 12V power supply or batteries required\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eMore efficient airflow\u003c\/strong\u003e than many 12V competitors\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eMounts securely to \u003cstrong\u003eStarSense Explorer 10” \u0026amp; 12” Dobsonians\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eAlso fits many \u003cstrong\u003ethird-party Dobsonian and Newtonian reflectors\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eIncludes integrated \u003cstrong\u003eUSB cable clip\u003c\/strong\u003e for clean storage when not in use\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eGet Sharper Views, Faster\u003c\/h3\u003e\n\u003cp\u003eThe \u003cstrong\u003eCelestron USB Cooling Fan\u003c\/strong\u003e is an essential upgrade for any Dobsonian owner who wants \u003cstrong\u003efaster cooldown times, clearer views, and less hassle with power setup\u003c\/strong\u003e. Whether you’re heading to a dark sky site or setting up in your garden, this compact accessory helps you get the most out of your telescope, every time.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eOrder now\u003c\/strong\u003e and enjoy more time observing, less time waiting.\u003c\/p\u003e","brand":"Celestron","offers":[{"title":"Default Title","offer_id":55897345065334,"sku":"050234942560","price":24.99,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0909\/2235\/3014\/files\/Celestron-USB-Cooling-Fan-for-Dobsonians-Product-Photo-1.webp?v=1757497120","url":"https:\/\/welshastronomy.co.uk\/products\/celestron-usb-cooling-fan-for-dobsonians","provider":"The Welsh Astronomy Centre","version":"1.0","type":"link"}