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Rocks Minerals & Crystals: A Coloring and Collecting Book
Gem Guides Book Company$8.95Explore and "color in" the amazing world of minerals and crystals... readers and rockhounds of all ages and skill levels will love this book! Learn...
View full details$8.95In Stock -
Rocks, Minerals & Crystals: A Coloring & Collecting Book
Book$8.95Explore and "color in" the amazing world of minerals and crystals... readers and rockhounds of all ages and skill levels will love this book! Learn...
View full details$8.95 -
RS-232 Cable - Celestron Goto Telescopes
Celestron$22.95Allows Celestron computerized telescopes (CPC, CGE, NexStar, Advanced Series) to be connected to a RS-232 serial port for computer control. A USB-t...
View full details$22.95 -
RST-135E Weightless Mount
Rainbow Astro$5,495.00Counterweights Not Required Only 3.4kg weight ±2.5arcsec PE Capacity 13.5kg (max 18kg) Strain Wave Gear (Harmonic Drive) ...
View full details$5,495.00 -
In Stock
SCT - 2" Adapter
Starizona$29.95Use this adapter to attach accessories with standard SCT female threads (such as a focal reducer) to a 2" focuser or visual back. This adapter has ...
View full details$29.95In Stock -
In Stock
SCT Corrector - Adapter for 55mm Backfocus
starizona$40.0035.3mm T-to-T spacer (M42 female to M42 male). This adapter takes up 35.3mm of the Starizona SCT Corrector's 90.3mm back focus. Leaving 55mm of ba...
View full details$40.00In Stock -
SCT Corrector v1 to SCT Threads
Starizona$65.00This adapter gives your Starizona SCT Corrector v1 SCT Threads. Thread Type: SCT Length: 9mm length
$65.00 -
In Stock
SCT Mounting Bracket for Mini Guidescopes and ASIAir
Starizona$12.95Updated, more robust design! This bracket will fit the existing finderscope mounting holes on SCT telescopes. It fits common finderscope style fee...
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In Stock
Secondary Mirror Cover for Skywatcher 150PDS
Backyard Universe$24.99Description The secondary mirror cover can be used to cover the rear side of the secondary mirror. This considerably reduces the cooling of the se...
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In Stock
Secondary Mirror Cover for Skywatcher 200PDS
Backyard Universe$29.99Description The secondary mirror cover can be used to cover the rear side of the secondary mirror. This considerably reduces the cooling of the se...
View full details$29.99In Stock -
Secondary Mirror Cover for Skywatcher 250PDS
Backyard Universe$29.99Description The secondary mirror cover can be used to cover the rear side of the secondary mirror. This considerably reduces the cooling of the se...
View full details$29.99 -
Secondary Mirror Cover for Skywatcher Quattro 150P
Backyard Universe$24.99Description The secondary mirror cover can be used to cover the rear side of the secondary mirror. This considerably reduces the cooling of the se...
View full details$24.99 -
In Stock
Secondary Mirror Cover for Skywatcher Quattro 200P
Backyard Universe$34.99Description The secondary mirror cover can be used to cover the rear side of the secondary mirror. This considerably reduces the cooling of the se...
View full details$34.99In Stock -
In Stock
Secondary Mirror Cover for Skywatcher Quattro 250P
Backyard Universe$34.99Description The secondary mirror cover can be used to cover the rear side of the secondary mirror. This considerably reduces the cooling of the se...
View full details$34.99In Stock -
Secondary Mirror Spider TS200, CNC machined
Backyard Universe$219.00CNC machined secondary spider made of aluminum (EN AW-6061), black matt anodized, suitable for 8" TS-Optics GSO Photon This secondary spider is ma...
View full details$219.00 -
Secondary Mirror Spider TS250, CNC machined
Backyard Universe$279.00CNC machined secondary spider made of aluminum (EN AW-6061), black matte anodized, suitable for 10" TS-Optics GSO Photon This secondary spider is m...
View full details$279.00 -
Secondary Spider for SkyWatcher 150, CNC machined
Backyard Universe$179.00CNC machined secondary spider made of aluminum (EN AW-6061), black matte anodized, suitable for Skywatcher 150 P/PDS/Quattro This secondary spider ...
View full details$179.00 -
Secondary Spider for SkyWatcher 200, CNC machined
Backyard Universe$219.00CNC machined secondary spider made of aluminum (EN AW-6061), black matte anodized, suitable for Skywatcher 200 PDS/Quattro This secondary spider is...
View full details$219.00 -
In Stock
Secondary Spider for SkyWatcher 250, CNC machined
Backyard Universe$279.00CNC machined secondary spider made of aluminum (EN AW-6061), black matte anodized, suitable for Skywatcher 250 PDS/Quattro This secondary spider is...
View full details$279.00In Stock -
Secondary Spider TS150, CNC Machined Metal Tube ID175mm
Backyard Universe$169.00CNC machined secondary spider made of aluminum (EN AW-6061), black matt anodized, suitable for TS-Optics GSO Photon 6" This secondary spider is ma...
View full details$169.00 -
SeeStar AstroLevel
Starizona$37.95AstroLevel, the ultimate accessory for your ZWO SeeStar S50 smart telescope. Designed to seamlessly connect to your SeeStar's tripod, AstroLeve...
View full details$37.95 -
In Stock
Seestar S30 All-in-One Smart Telescope
ZWO$399.00Limited Quantity: Due to high demand and limited availability, orders will be fulfilled on a first-in, first-out basis. This means that the earlier...
View full details$399.00In Stock -
Sharpstar 0.84x Reducer and Flattener for Sharpstar 50EDPH Apo Triplet
Sharpstar$109.00The 0.84x reducer can bring Sharpstar 50EDPH's focal ratio down to F4.6. This is a standard reducer with field flattening capabilities as well. A...
View full details$109.00 -
Sharpstar 50EDPH V2 APO Triplet Refractor Telescope
Sharpstar$439.00V2 model with new tube ring and foot design. This compact 50mm f/5.5 APO refractor telescope has triplet air-spaced APO optics, including two piec...
View full details$439.00