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$484.00
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$363.00

Astrodon H-alpha Filter - 5nm

DON-HA5_31R
Only 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...

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$484.00
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$484.00
$363.00
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$363.00
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$484.00
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$363.00
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$363.00

Astrodon SII Filter - 5nm

DON-SII5_31R
Only 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...

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$484.00
$363.00
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$363.00
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$283.00
$283.00 - $283.00
$283.00
$212.00
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$212.00

Baader 4nm 1.25" Ultra-Narrowband OIII Filter - CMOS-Optimized (USED)

BAA-2961400-125-USED
Only 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...

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$283.00
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$283.00
$212.00
$212.00 - $212.00
$212.00
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$193.00
$193.00 - $193.00
$193.00
$144.00
$144.00 - $144.00
$144.00

Baader 6.5nm 36mm H-alpha Filter - CMOS-Optimized (OPEN BOX)

BAA-2961100-36-OPENBOX
Only 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...

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$193.00
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$193.00
$144.00
$144.00 - $144.00
$144.00
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$306.16
$306.16 - $306.16
$306.16
$209.94
$209.94 - $209.94
$209.94

Baader CCD LRGB 31mm Unmounted Filter Set (OPEN BOX)

BAA-2459474-OPENBOX
Only 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 ...

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$306.16
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$306.16
$209.94
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$209.94
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$20.59 - $20.59
$20.59
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$20.59

Baader T-Ring Nikon - T-2 - Used

U-BAA-2408300
Only 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...

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$20.59 - $20.59
$20.59
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$20.59
$749.00 - $749.00
$749.00
$749.00 - $749.00
$749.00

Celestron Nexstar 4SE Computerized Telescope

CEL-11049
2 in stock

102mm (4.02") Maksutov-Cassegrain Optical Tube 1325mm Focal Length (f/13) Computerized GoTo Mount with 38,181 Object Database StarBright XLT Optic...

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$749.00
$749.00 - $749.00
$749.00
$1,029.00 - $1,029.00
$1,029.00
$1,029.00 - $1,029.00
$1,029.00

Celestron Nexstar 5SE Computerized Telescope

CEL-11036
1 in stock

125mm (4.92") Schmidt-Cassegrain Optical Tube Computerized GoTo Single Fork Arm Alt-Azimuth Mount NexStar+ Hand Control with a 38,181 Object Datab...

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$1,029.00 - $1,029.00
$1,029.00
$1,029.00 - $1,029.00
$1,029.00
$1,199.00 - $1,199.00
$1,199.00
$1,199.00 - $1,199.00
$1,199.00

Celestron Nexstar 6SE Computerized Telescope

CEL-11068
2 in stock

150mm (5.91") Schmidt-Cassegrain Optical Tube f/10 Focal Ratio with 1500mm Focal Length StarBright XLT Optical Coatings Computerized Single Fork A...

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$1,199.00 - $1,199.00
$1,199.00
$1,199.00 - $1,199.00
$1,199.00
$1,269.32 - $1,269.32
$1,269.32
$1,269.32 - $1,269.32
$1,269.32

Celestron Nexstar 6SE kit with lots of accessories - Used

U-CEL-11068
Only 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...

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$1,269.32 - $1,269.32
$1,269.32
$1,269.32 - $1,269.32
$1,269.32
$1,699.00 - $1,699.00
$1,699.00
$1,699.00 - $1,699.00
$1,699.00

Celestron Nexstar 8SE Computerized Telescope

CEL-11069
1 in stock

8" (203.2mm) Schmidt-Cassegrain Optical Tube f/10 Focal Ratio with 2032mm Focal Length Starbright XLT Optical Coatings for Maximum Light Transmiss...

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$1,699.00 - $1,699.00
$1,699.00
$1,699.00 - $1,699.00
$1,699.00
Sold out
$336.77
$336.77 - $336.77
$336.77
$303.24
$303.24 - $303.24
$303.24

Celestron Off-Axis Guider -Used

U-CEL-93648

In good condition. Adapters show sign of use. Comes with all original adapters and in the original box. Features Most accurate way to guide – im...

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$336.77
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$336.77
$303.24
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$303.24
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$138.43 - $138.43
$138.43
$138.43 - $138.43
$138.43

Celestron PowerTank Lithium - Used

U-CEL-18771
Only 1 left!

Like new!Features Portable power pack for your computerized Celestron telescope using Lithium-Iron Phosphate (LiFePO4) chemistry Powers your telesc...

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$138.43 - $138.43
$138.43
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$138.43
$10.65 - $10.65
$10.65
$10.65 - $10.65
$10.65

Celestron T-Ring for Canon EOS Camera - Used

U-CEL-93419
Only 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...

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$10.65 - $10.65
$10.65
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$10.65
$84.48 - $84.48
$84.48
$84.48 - $84.48
$84.48

Celestron X-Cel LX 9 mm - 1.25" - Used

U-CEL-93423
Only 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...

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$84.48 - $84.48
$84.48
$84.48 - $84.48
$84.48
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$851.89 - $851.89
$851.89
$851.89 - $851.89
$851.89

Coronado SolarMax II 60mm Solar H-alpha Telescope with BF10 - Used

U-COR-SOLARMAX60II

In good condition, comes with BF10, one CEMAX 25mm eyepiece, and the original hard case. Does not come with tripod in image. <0.7 Angstroms

$851.89 - $851.89
$851.89
$851.89 - $851.89
$851.89
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$702.81 - $702.81
$702.81
$702.81 - $702.81
$702.81

Explore Scientific 10-inch Dobsonian Reflector Telescope - Open Box

U-ES-ON25447
Only 1 left!

This telescope is a return, being returned due to its size. It was assembled, the client found it too big, then disassembled and returned. Designe...

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$702.81 - $702.81
$702.81
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$702.81
$1,774.07 - $1,774.07
$1,774.07
$1,774.07 - $1,774.07
$1,774.07

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...

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$1,774.07 - $1,774.07
$1,774.07
$1,774.07 - $1,774.07
$1,774.07
$895.00 - $995.00
$895.00
$895.00 - $995.00
$895.00 - $995.00
$895.00

Lunt 40mm Solar Telescope

Options available
2 variants in stock

The Lunt LS40Tha is a dedicated hydrogen-alpha solar telescope that provides exceptional resolution and contrast for solar observation and imaging...

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$895.00 - $995.00
$895.00
$895.00 - $995.00
$895.00 - $995.00
$895.00
Save 36% Save %
$39.00
$39.00 - $39.00
$39.00
$25.00
$25.00 - $25.00
$25.00

Moon Map Poster - 24" x 36"

DAV-MOON
135 in stock

Every astronomer should have at his disposition a detailed map of our only natural satellite: the Moon. Our map is based on thousands of images ...

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$39.00
$39.00 - $39.00
$39.00
$25.00
$25.00 - $25.00
$25.00
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$425.24 - $425.24
$425.24
$425.24 - $425.24
$425.24

Optec Flip-Flat Motorized Flat Panel

U-OTC-19050
Only 1 left!

In good condition. Comes with original packaging Works with OTA dew shields up to 7-5/8" (194mm) Illumination up to 170mm

$425.24 - $425.24
$425.24
$425.24 - $425.24
$425.24
Save 40% Save %
$99.00
$99.00 - $99.00
$99.00
$59.00
$59.00 - $59.00
$59.00

Player One 100mm Mini Guiding Set

POA-MINIGS
1 in stock

100mm mini guiding scope set Designed for compact guide cameras Includes 3-piece guiding system Lightweight and portable design Not compatible wit...

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$99.00
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$99.00
$59.00
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$59.00
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Save 34% Save %
$29.00
$29.00 - $29.00
$29.00
$19.00
$19.00 - $19.00
$19.00

Player One 12V 5A Power Supply - 5.5 x 2.1mm

Options available
4 variants in stock

High-quality 12V 5A DC power supply (DC 5.5 x 2.1mm) Specifically designed to power cooled cameras and Active Cooli...

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$29.00
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$29.00
$19.00
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$19.00
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Save 35% Save %
$69.00
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$69.00
$45.00
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$45.00

Player One Active Cooling System (ACS) for Uncooled Cameras

POA-ACS
1 in stock

Active cooling system for uncooled cameras External air-cooled temperature control unit Designed for solar and large-format planetary imaging Impr...

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$69.00
$69.00 - $69.00
$69.00
$45.00
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$45.00
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