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Original price $484.00 USD - Original price $484.00 USDOriginal price$484.00 USD$484.00 USD - $484.00 USDCurrent price $484.00 USDAstrodon H-alpha Filter - 5nm
DON-HA5_31ROnly 1 left!H-α (hydrogen-alpha) at 656 nm (nanometers) is deep red in color and the most popular narrowband filter. Hydrogen is ubiquitous in the cosmos and i...
View full detailsOriginal price $484.00 USD - Original price $484.00 USDOriginal price$484.00 USD$484.00 USD - $484.00 USDCurrent price $484.00 USD -
Original price $484.00 USDOriginal price $484.00 USD - Original price $484.00 USDOriginal price $484.00 USDCurrent price $425.00 USD$425.00 USD - $425.00 USDCurrent price $425.00 USD
Astrodon SII Filter - 5nm
DON-SII5_31ROnly 1 left!If you want the look of Hubble Space Telescope (HST) images, such as the famous “Pillars of Creation” (the Eagle Nebula, Messier 16), then the next...
View full detailsOriginal price $484.00 USDOriginal price $484.00 USD - Original price $484.00 USDOriginal price $484.00 USDCurrent price $425.00 USD$425.00 USD - $425.00 USDCurrent price $425.00 USDSave 12% -
Original price $282.83 USDOriginal price $282.83 USD - Original price $282.83 USDOriginal price $282.83 USDCurrent price $238.37 USD$238.37 USD - $238.37 USDCurrent price $238.37 USD
Baader 4nm 1.25" Ultra-Narrowband OIII Filter - CMOS-Optimized (USED)
BAA-2961400-125-USEDOnly 1 left!In perfect condition, used Baader H-alpha / O-III / S-II Ultra-Narrowband (Narrowband) filter set - Premium Grade 3.5 / 4 nm half width (to harmo...
View full detailsOriginal price $282.83 USDOriginal price $282.83 USD - Original price $282.83 USDOriginal price $282.83 USDCurrent price $238.37 USD$238.37 USD - $238.37 USDCurrent price $238.37 USDSave 16% -
Original price $193.17 USDOriginal price $193.17 USD - Original price $193.17 USDOriginal price $193.17 USDCurrent price $180.78 USD$180.78 USD - $180.78 USDCurrent price $180.78 USD
Baader 6.5nm 36mm H-alpha Filter - CMOS-Optimized (OPEN BOX)
BAA-2961100-36-OPENBOXOnly 1 left!In perfect condition, open box Baader H-alpha / O-III / S-II Narrowband Filter Set - Precision Grade 6.5 nm FWHM, recommended for optical systems...
View full detailsOriginal price $193.17 USDOriginal price $193.17 USD - Original price $193.17 USDOriginal price $193.17 USDCurrent price $180.78 USD$180.78 USD - $180.78 USDCurrent price $180.78 USDSave 6% -
Original price $306.16 USDOriginal price $306.16 USD - Original price $306.16 USDOriginal price $306.16 USDCurrent price $209.94 USD$209.94 USD - $209.94 USDCurrent price $209.94 USD
Baader CCD LRGB 31mm Unmounted Filter Set (OPEN BOX)
BAA-2459474-OPENBOXOnly 1 left!In perfect condition, open box Filter size 31 mm - round, unmounted - filter thickness 2 mm Set of L-R-G-B filters High-quality anti-reflective ...
View full detailsOriginal price $306.16 USDOriginal price $306.16 USD - Original price $306.16 USDOriginal price $306.16 USDCurrent price $209.94 USD$209.94 USD - $209.94 USDCurrent price $209.94 USDSave 31% -
Original price $26.85 USDOriginal price $26.85 USD - Original price $26.85 USDOriginal price $26.85 USDCurrent price $21.05 USD$21.05 USD - $21.05 USDCurrent price $21.05 USD
Baader T-Ring Nikon - T-2 - Used
U-BAA-2408300Only 1 left!Like new! Baader T-Ring to connect Nikon DSLR cameras onto the Astro T-2 system Results in the standard exact distance of 55.0mm from the front fac...
View full detailsOriginal price $26.85 USDOriginal price $26.85 USD - Original price $26.85 USDOriginal price $26.85 USDCurrent price $21.05 USD$21.05 USD - $21.05 USDCurrent price $21.05 USDSave 22% -
Original price $2,086.42 USDOriginal price $2,086.42 USD - Original price $2,086.42 USDOriginal price $2,086.42 USDCurrent price $1,297.57 USD$1,297.57 USD - $1,297.57 USDCurrent price $1,297.57 USD
Celestron Nexstar 6SE kit with lots of accessories - Used
U-CEL-11068Only 1 left!This used kit comes with: Nexstar 6SE telescope, mount and tripod Celestron Padded carrying case Celestron 2" Dieletric diagonal with twist lock C...
View full detailsOriginal price $2,086.42 USDOriginal price $2,086.42 USD - Original price $2,086.42 USDOriginal price $2,086.42 USDCurrent price $1,297.57 USD$1,297.57 USD - $1,297.57 USDCurrent price $1,297.57 USDSave 38% -
Original price $336.77 USDOriginal price $336.77 USD - Original price $336.77 USDOriginal price $336.77 USDCurrent price $303.24 USD$303.24 USD - $303.24 USDCurrent price $303.24 USD
Celestron Off-Axis Guider -Used
U-CEL-93648In good condition. Adapters show sign of use. Comes with all original adapters and in the original box. Features Most accurate way to guide – im...
View full detailsOriginal price $336.77 USDOriginal price $336.77 USD - Original price $336.77 USDOriginal price $336.77 USDCurrent price $303.24 USD$303.24 USD - $303.24 USDCurrent price $303.24 USDSold out -
Original price $176.35 USDOriginal price $176.35 USD - Original price $176.35 USDOriginal price $176.35 USDCurrent price $141.51 USD$141.51 USD - $141.51 USDCurrent price $141.51 USD
Celestron PowerTank Lithium - Used
U-CEL-18771Only 1 left!Like new!Features Portable power pack for your computerized Celestron telescope using Lithium-Iron Phosphate (LiFePO4) chemistry Powers your telesc...
View full detailsOriginal price $176.35 USDOriginal price $176.35 USD - Original price $176.35 USDOriginal price $176.35 USDCurrent price $141.51 USD$141.51 USD - $141.51 USDCurrent price $141.51 USDSave 20% -
Original price $201.75 USDOriginal price $201.75 USD - Original price $201.75 USDOriginal price $201.75 USDCurrent price $144.42 USD$144.42 USD - $144.42 USDCurrent price $144.42 USD
Celestron Reducer - Corrector - Used
U-CEL-941751 in stockIn excellent condition! Comes in original boxFeatures This combination focal reducer and field corrector lens accessory works with all Celestron 5"...
View full detailsOriginal price $201.75 USDOriginal price $201.75 USD - Original price $201.75 USDOriginal price $201.75 USDCurrent price $144.42 USD$144.42 USD - $144.42 USDCurrent price $144.42 USDSave 28% -
Original price $483.32 USDOriginal price $483.32 USD - Original price $483.32 USDOriginal price $483.32 USDCurrent price $362.13 USD$362.13 USD - $362.13 USDCurrent price $362.13 USD
Celestron StarSense AutoAlign - Used
U-CEL-94005Only 1 left!In good condition! Comes with all accessories included, and in its original box.Features Enables automatic alignment of your Celestron computerized...
View full detailsOriginal price $483.32 USDOriginal price $483.32 USD - Original price $483.32 USDOriginal price $483.32 USDCurrent price $362.13 USD$362.13 USD - $362.13 USDCurrent price $362.13 USDSave 25% -
Original price $17.42 USDOriginal price $17.42 USD - Original price $17.42 USDOriginal price $17.42 USDCurrent price $10.89 USD$10.89 USD - $10.89 USDCurrent price $10.89 USD
Celestron T-Ring for Canon EOS Camera - Used
U-CEL-93419Only 1 left!In fair conditionFeatures This Celestron T-Ring attaches to Canon EOS DSLR and SLR camera bodies Sturdy bayonet flange locks in place just like a l...
View full detailsOriginal price $17.42 USDOriginal price $17.42 USD - Original price $17.42 USDOriginal price $17.42 USDCurrent price $10.89 USD$10.89 USD - $10.89 USDCurrent price $10.89 USDSave 37% -
Original price $111.03 USDOriginal price $111.03 USD - Original price $111.03 USDOriginal price $111.03 USDCurrent price $86.36 USD$86.36 USD - $86.36 USDCurrent price $86.36 USD
Celestron X-Cel LX 9 mm - 1.25" - Used
U-CEL-93423Only 1 left!Like new!Features X-Cel LX eyepieces, optimized for planetary viewing, offer a 60° field of view through a six-element fully multi-coated lens syst...
View full detailsOriginal price $111.03 USDOriginal price $111.03 USD - Original price $111.03 USDOriginal price $111.03 USDCurrent price $86.36 USD$86.36 USD - $86.36 USDCurrent price $86.36 USDSave 22% -
Original price $1,999.00 USD - Original price $1,999.00 USDOriginal price $1,999.00 USD$2,019.00 USD$2,019.00 USD - $2,019.00 USDCurrent price $2,019.00 USDDiffraction Limited Boltwood Cloud Sensor II
The Boltwood Cloud Sensor II is the must-have accessory for your remote or automated observatory. Protect your valuable equipment from weather dama...
View full detailsOriginal price $1,999.00 USD - Original price $1,999.00 USDOriginal price $1,999.00 USD$2,019.00 USD$2,019.00 USD - $2,019.00 USDCurrent price $2,019.00 USD -
Original price $250.00 USD - Original price $475.00 USDOriginal price $250.00 USD$270.00 USD - $495.00 USD$270.00 USD - $495.00 USDCurrent price $270.00 USDDiffraction Limited Boltwood Cloud Sensor II Replacement Cable
Options availableReplacement cable for your Boltwood Cloud Sensor. Custom-designed cable rated for UV exposure and in-ground installation. Available in 50 foot / 15...
View full detailsOriginal price $250.00 USD - Original price $475.00 USDOriginal price $250.00 USD$270.00 USD - $495.00 USD$270.00 USD - $495.00 USDCurrent price $270.00 USD -
Original price $375.00 USDOriginal price $375.00 USD - Original price $375.00 USDOriginal price $375.00 USDCurrent price $20.00 USD$20.00 USD - $20.00 USDCurrent price $20.00 USD
Diffraction Limited Boltwood Portable Cloud Sensor
DL-Portable Cloud SensorA battery powered cloud sensor, perfect for those expeditions to dark-sky sites and star parties!
Original price $375.00 USDOriginal price $375.00 USD - Original price $375.00 USDOriginal price $375.00 USDCurrent price $20.00 USD$20.00 USD - $20.00 USDCurrent price $20.00 USDSave 95% -
Original price $299.00 USD - Original price $299.00 USDOriginal price $299.00 USD$319.00 USD$319.00 USD - $319.00 USDCurrent price $319.00 USDDiffraction Limited Cloud Sensor Adapter Box
DL-CS2-ADAPTERReplacement adapter box for the Boltwood II Cloud Sensor.
Original price $299.00 USD - Original price $299.00 USDOriginal price $299.00 USD$319.00 USD$319.00 USD - $319.00 USDCurrent price $319.00 USD -
Original price $375.00 USD - Original price $375.00 USDOriginal price $375.00 USD$395.00 USD$395.00 USD - $395.00 USDCurrent price $395.00 USDDiffraction Limited CSbG EcoLight
DL-CSbG EcoLight"The CSbG EcoLight is a low-impact alternative for applications where the priority is the protection of the environment and human health. It has u...
View full detailsOriginal price $375.00 USD - Original price $375.00 USDOriginal price $375.00 USD$395.00 USD$395.00 USD - $395.00 USDCurrent price $395.00 USD -
Original price $295.00 USD - Original price $295.00 USDOriginal price $295.00 USD$315.00 USD$315.00 USD - $315.00 USDCurrent price $315.00 USD
Diffraction Limited Extra-Spare Thermopile / Rain Sensor Disc
DL-CS2-RAIN-SENSOR-DISK#N/A
Original price $295.00 USD - Original price $295.00 USDOriginal price $295.00 USD$315.00 USD$315.00 USD - $315.00 USDCurrent price $315.00 USD -
Original price $895.00 USD - Original price $1,395.00 USDOriginal price $895.00 USD$915.00 USD - $1,415.00 USD$915.00 USD - $1,415.00 USDCurrent price $915.00 USDDiffraction Limited MaxDome II
Options availablenullThe MaxDome II dome controller provides flexible, fully integrated observatory dome control. Features include: ASCOM-Standard dome and telesc...
View full detailsOriginal price $895.00 USD - Original price $1,395.00 USDOriginal price $895.00 USD$915.00 USD - $1,415.00 USD$915.00 USD - $1,415.00 USDCurrent price $915.00 USD -
Original price $2,415.89 USDOriginal price $2,415.89 USD - Original price $2,415.89 USDOriginal price $2,415.89 USDCurrent price $1,813.55 USD$1,813.55 USD - $1,813.55 USDCurrent price $1,813.55 USD
Explore Scientific ED127 Triplet APO f/7.5 with accessories - USED
Only 1 left!ED127 telescope (good condition) 3" 0.7x reducer from Explore Scientific (brand new) 2" Field flattener from Explore Scientific (good condition) 6...
View full detailsOriginal price $2,415.89 USDOriginal price $2,415.89 USD - Original price $2,415.89 USDOriginal price $2,415.89 USDCurrent price $1,813.55 USD$1,813.55 USD - $1,813.55 USDCurrent price $1,813.55 USDSave 25% -
Original price $558.00 USD - Original price $558.00 USDOriginal price$558.00 USD$558.00 USD - $558.00 USDCurrent price $558.00 USDiOptron Photron 6" Ritchey-Chretien
IOP-6111The iOptron® Photron™ Ritchey-Chrétien design telescopes feature low thermal expansion quartz primary and secondary mirrors with ninety-nine percen...
View full detailsOriginal price $558.00 USD - Original price $558.00 USDOriginal price$558.00 USD$558.00 USD - $558.00 USDCurrent price $558.00 USD -
Original price $1,178.00 USD - Original price $1,178.00 USDOriginal price$1,178.00 USD$1,178.00 USD - $1,178.00 USDCurrent price $1,178.00 USDiOptron Photron 8" Ritchey-Chretien
IOP-61122 in stockThe iOptron® Photron™ Ritchey-Chretien design telescopes, feature low thermal expansion quartz primary and secondary mirrors with ninety-nine perce...
View full detailsOriginal price $1,178.00 USD - Original price $1,178.00 USDOriginal price$1,178.00 USD$1,178.00 USD - $1,178.00 USDCurrent price $1,178.00 USD -
Original price $39.00 USDOriginal price $39.00 USD - Original price $39.00 USDOriginal price $39.00 USDCurrent price $25.00 USD$25.00 USD - $25.00 USDCurrent price $25.00 USD
Moon Map Poster - 24" x 36"
DAV-MOON135 in stockEvery astronomer should have at his disposition a detailed map of our only natural satellite: the Moon. Our map is based on thousands of images ...
View full detailsOriginal price $39.00 USDOriginal price $39.00 USD - Original price $39.00 USDOriginal price $39.00 USDCurrent price $25.00 USD$25.00 USD - $25.00 USDCurrent price $25.00 USDSave 36%
