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9mm Nagler - Type 6
TeleVue$335.00The 7-element, Nagler Type 6 design is based on the original patented Nagler design. This new 7-element design update for the short focal length Na...
View full details$335.00In Stock -
Sun Catcher Solar Filter for 14" Schmidt-Cassegrains
Explore Scientific$49.99100% Safe for Eclipse Viewing Lightweight and generally does not require rebalancing tube assembly. Stronger than any other solar filter film on t...
View full details$49.99In Stock -
Antlia 4.5nm Narrowband OIII EDGE Filter - 50mm Unmounted
Antlia$350.00Antlia OIII EDGE narrowband filter optimizes the FWHM (full width half maximum) to 4.5nm bandpass. The suppression of optical density (OD)5 on unwa...
View full details$350.00In Stock -
Antlia 4.5nm Narrowband H-Alpha EDGE Filter - 50mm Unmounted
Antlia$350.00Antlia H-alpha EDGE narrowband filter optimizes the FWHM (full width half maximum) to 4.5nm bandpass. The suppression of optical density (OD)5 on u...
View full details$350.00In Stock -
Space Pen Black Ink Refill, Medium Point Pressurized Cartridge
Fisher$7.95Fisher Space Pen’s Sealed Pressurized Ink Cartridge performs in temperatures from -30º F to +250º F, underwater, in zero gravity, at any angle - ev...
View full details$7.95 -
Armor Black Cerakote Bullet Space Pen
Fisher$39.00Whether you’re in the field filling out a tag for that once-in-a-lifetime trophy or marking off your checklist of the never-ending chores that need...
View full details$39.00 -
Supernova Rainbow Titanium Nitride Bullet Space Pen
Fisher$75.00Stars which are eight times or more massive than our Sun end their lives in a most spectacular way; they go supernova. A supernova is the most powe...
View full details$75.00 -
Elite Navy Cerakote Finished Bullet Space Pen
Fisher$42.00Conceived in a dream in July 1948, Paul Fisher was soon machining a new pen design shaped from solid aluminum. It became the first Fisher ball poin...
View full details$42.00 -
6mm Delos
TeleVue$387.00Tele Vue is pleased to introduce the Delos, mid-to-short focal length line of 20mm eye-relief, 72° apparent field of view eyepieces. Every optical,...
View full details$387.00In Stock -
Celestron Dew Heater Ring - 14"
Celestron$159.95Heater ring provides the most efficient heating directly to the corrector lens to prevent the formation of dew Permanently mounts to your existin...
View full details$159.95In Stock -
Celestron Dew Heater Ring - 11"
Celestron$99.95Heater ring provides the most efficient heating directly to the corrector lens to prevent the formation of dew Permanently mounts to your existin...
View full details$99.95In Stock -
Counterweight Set - CPC-925 - Bottom Only
Starizona$119.00To achieve true dynamic balance with a fork-mounted SCT, both top and bottom weights are required. See stock number CWCPC925-CS for the complete to...
View full details$119.00In Stock -
ZWO M42 Sensor Tilt Plate
ZWO$29.00M42 Sensor tilt adapter Product: M42 sensor tilt adapter Thickness: 5mm Suitable for APS-C cameras (ASI2600) You can connect it to M68 OAG and 2”E...
View full details$29.00In Stock -
Fan for ZWO 2400, 2600, 6200 Cameras
ZWO$15.00Replacement fan for 2600,6200,2400 cooled/pro cameras
$15.00In Stock -
Celestron Regal M2 20-60X80mm ED Angled Zoom Spotting Scope
Celestron$899.95The Regal M2 spotting scope series is the next generation of our top-performing Regal F-ED spotting scopes. Day or night, the Regal M2 is optimize...
View full details$899.95In Stock -
Ultima 80 - 45°
Celestron$289.95The Ultima 80mm features a 45° viewing angle and offers a step up in aperture from the 65mm, offering 50% brighter images. The 80mm refractor featu...
View full details$289.95In Stock -
Feathertouch 3.0" Telescope Adapter - C11/14
Starlight Instruments$250.00Use with focuser FTF3015B-A Known To Fit Celestron C11/CPC11, C14/C14 Edge HD telescopes Thread on Entry (OTA | FRONT) Side of Draw Tube 3.29x16tpi...
View full details$250.00In Stock -
Nature DX 8x32 Binoculars
Celestron$149.95Celestron’s new Nature DX Series is the perfect companion for the outdoors lover. These affordable yet feature-packed binoculars are designed speci...
View full details$149.95In Stock -
National Audubon Society Pocket Guide: Constellations book
Book$16.00A portable, comprehensive field guide—brimming with concise descriptions and stunning color photographs, and designed to fit into your back pocket—...
View full details$16.00In Stock -
Touching the Earth by Roberta Bondar book
Book$17.95Roberta Bondar's voyage as an astronaut aboard the space shuttle Discovery was the realization of childhood dream for the Canadian scientist and do...
View full details$17.95In Stock -
ATIK 428EX Color
Atik$1,860.002.8 million 4.54µm square pixels for high-resolution imaging Low-noise electronics for the best sensitivity High Quantum Efficiency Regulated cool...
View full details$1,860.00In Stock -
Finder Charts of Overlooked Objects by Brent Watson
Sky Spot$17.99Finder Charts are printed on white vellum card stock to make them durable. The black printing and stars on a white background makes them easily rea...
View full details$17.99In Stock -
Moon Observer's Guide book
Firefly Books$19.95Since publication of the first edition of this book, we have enjoyed more than a decade of new readings and images taken by shuttles, rovers, and ...
View full details$19.95In Stock