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Yesterday, 04:05 PM

Views: 384


$50.00

For Sale 6" f/5 Newt OTA for parts


By: psterngold Location: Los Angeles

6" f/5 Newt OTA for parts.Includes:Integrated mirror cell/tube end ring, push-pull collimation screws - aluminumInteg...

Yesterday, 09:24 AM

Views: 83


n/a

Wanted Higher quality 6” Newtonian Mirror


By: DSalters Location: MO

Looking for a 6” Newt mirror of known pedigree/quality. Doesn't have to be premium but close would be nice. Don’t wan...

09 Apr 2021

Updated: 09 Apr 2021

Views: 195

Sold!
$95.00

For Sale 4.5" Diameter Cemented Doublet Achromatic Lens


By: starbird Location: 95409

This is a 4.5" diameter about 20" focal length doublet cemented achromatic lens. Nice large lens coated in great used...

09 Apr 2021

Views: 62


n/a

Wanted Meade lightbridge 16” Parts


By: Bikeboy60 Location: Parker, CO

Hello, I am looking for an upper section to a 16” Meade lightbridge. If you happen to have one let me know. Keep L...

08 Apr 2021

Views: 244

Sold!
$400.00

For Sale Byer's 9 in gear and worm


By: djaecks Location: Lincoln, NE

for sale are two 9 in. diameter Byers' gears and worms. These were purchased at the time Byer was closing his shop....

08 Apr 2021

Views: 94

Sold!
$20.00

For Sale Orion Tube Rings 76mm


By: Astroweed Location: WI

For Sale A set of 2 tube rings from Orion 76mm (3") I.D. Set of two cast-aluminum tube rings with quick-release, h...

07 Apr 2021

Views: 204

Sold!
$285.00

For Sale Coulter 13.1" Primary Mirror FL 58.4" (f4.45) 1983 Blue Tube


By: Volvonium Location: Long Beach, CA

Up for sale is the 13.1" f/4.45 pyrex parabolic primary from a 1983 Coulter Blue Tube. 1.25" thickness. Written in bl...

06 Apr 2021

Views: 149


$50.00

For Sale 4 inch Primary + matching secondary & focuser


By: Jim T Location: near St Louis MO

See pictures. 4 inch+ primary mirror, focal length guesstimated ~ f/10, Glued onto a crude wooden cell, along with t...

05 Apr 2021

Views: 401

Offer Pending
$2,499.00

For Sale 36" Pyrex Cellular Mirror Blank


By: Shane LaPierre Location: Connecticut

Are you ready to make your dream telescope? For Sale/Trade is a 36" Pyrex Cellular Mirror Blank I have an amazing 3...

05 Apr 2021

Views: 286

Sold!
n/a

For Sale ES 152mm f/6.5 Air-Spaced Achromat lens


By: M_Guaveia Location: Tucson, AZ

ES 152mm f/6.5 Air-Spaced Achromat Lens Comes with cell and counter cell that allow lateral and longitudinal collima...

04 Apr 2021

Views: 204

Sold!
$75.00

For Sale Ken Novak Counterweight System


By: djnh23 Location: Geneva Illinois

Vintage counterweight system by Ken Novak & Co. You get (3) weights, (2) mounting brackets, and a 14 1/8" long ro...

04 Apr 2021

Views: 450

Offer Pending
$185.00

For Sale gear and worm


By: djaecks Location: lincoln, NE

for sale is a 6" diameter gear and a 1" diameter worm.. there are approximately 188 teeth in the gear. I say approxim...

03 Apr 2021

Views: 108

Sold!
$110.00

For Sale GSO Elliptical Secondary Mirror - 88mm ( Never Used)


By: Big_Eight Location: Colorado

For Sale I have a GSO 88mm Secondary mirror for a Newtonian/DOB Telescope. I am using a different secondary for my sc...

02 Apr 2021

Views: 314

Sold!
$2,400.00

For Sale 20" and 11" Byers gears with worm block and motor


By: croy50 Location: Ridgway, CO

Sell combined or separate: New 20" Byers Gears with motor and worm block , 12" clutch Bore 3.5" asking $2000 Ne...

01 Apr 2021

Views: 371

Sold!
$95.00

For Sale Byers gear and worm


By: djaecks Location: Lincoln, NE

For sale is a Byers worm and gear, 4 and 5/8 inches in diameter. anodized aluminum. Asking 95 dollars shipped in cont...

01 Apr 2021

Views: 97


$450.00

For Sale Astro-Physics 2.7” Focuser (original) with Robo Focus


By: skyguy7 Location: Pennsylvania

Astro-Physics 2.7” Focuser (original) with Robo FocusOriginally installed on 155 mm StarFire. This is a high quality...

01 Apr 2021

Views: 389


$750.00

For Sale Nova Optical 14.5" F/4 Quartz Parabolic Primary Mirror


By: coinboy1 Location: Tulsa, OK

Up for sale is my Nova Optical 14.5" F/4 Quartz Parabolic Primary Mirror. It is 0.8" thick and has a 4" hole cored in...

01 Apr 2021

Views: 539

Sold!
$175.00

For Sale Parting out 10" reflector build


By: Sean Cunneen Location: Flossmoor IL

This is a defunk project of mine... It is sized for a 10 in a 5.6 Coulter mirror. There are no optics in the scope cu...

01 Apr 2021

Views: 128

Sold!
$145.00

For Sale ES 127mm Air-Spaced Achromat in Adjustable Cell


By: M_Guaveia Location: Tucson

The Explore Scientific AR127 has a lens cell that allows lateral and longitudinal collimation. Focal ratio is 6.5 Ape...

01 Apr 2021

Views: 38

Found!
$1.00

Wanted 8" f4 mirror


By: David Mc Location: Texas

Looking for an 8" f4 mirror. A view sleeks or minor coating defects not a problem. Thanks for taking a look.

31 Mar 2021

Views: 221

Sold!
$95.00

For Sale Achromatic Doublet Lens 4.35" Diameter


By: starbird Location: 95409

This is an about 4.35" cemented doublet achromatic lens. Great condition. Focal length is about 20". Would make a...

31 Mar 2021

Views: 120


$35.00

For Sale 114MM Mirror Set f/5 with 1.3" secondary and holders


By: scopehed Location: Meadview, AZ

114MM Mirror Set f/5 with 1.3" secondary and holders. spherical mirror for wide field telescope excellent condition...

31 Mar 2021

Views: 215

Sold!
$95.00

For Sale 5" F8 Achromatic Doublet Air Spaced Lens


By: starbird Location: 95409

This is a 5" F8 achromatic doublet airspaced lens. It is about 130mm diameter and about 1000mm focal length. It is us...

30 Mar 2021

Views: 30


$1.00

Wanted 70mm f4 primary and secondary.


By: Simon Alderman Location: WNC

I’m looking for the optics from one of those little scopes that seem pretty common. Around 70mm f4ish, almost certain...

29 Mar 2021

Views: 120


$20.00

For Sale Focus Extension Tube 2" with Brass Compression Ring Feature


By: starbird Location: 95409

This is a brand new 2" focus extension tube with a brass compression ring eyepiece capture feature. Brand new unused....

CNers have asked about a donation box for Cloudy Nights over the years, so here you go. Donation is not required by any means, so please enjoy your stay.


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