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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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Yesterday, 08:43 PM

Views: 53


$39.00

For Sale GSO 1.83" (46mm) secondary mirror


By: Augustus Location: Connecticut

Brand new, still in the packaging. $39 shipped CONUS/AK/HI

Yesterday, 11:59 AM

Views: 126


$530.00

For Sale Lens in cell Carl Zeiss Jena AS63/840 *quality Q1*


By: astromazzo Location: Viterbo

Lens-objective Carl Zeiss Jena AS63 / 840 (cell lens) in perfect condition, quality mark Q1 reserved for the best len...

03 Aug 2020

Views: 227

Sold!
$140.00

For Sale 10" Fused Silica Window


By: ioptics Location: salt Lake City

10" Dia x 1" Thick Fused Silica Window No Defects Shipping $25.00

03 Aug 2020

Views: 493

Sold!
$400.00

For Sale 18" F/5.7 Cervit Mirror


By: ioptics Location: Salt Lake City

18" F/5.7 Cervit Mirror Excellent Coating Good Condition $400.00 or Best offer Selling at Blank Price Shipping Cont U...

03 Aug 2020

Views: 567

Sold!
$400.00

For Sale 26" Flat Mirror


By: ioptics Location: Salt Lake City

This 26" Flat Mirror was removed from a large telescope. It is mounted in a metal ring. Looks to be high quality part...

01 Aug 2020

Views: 98


$70.00

For Sale 8” Novak mirror cell(incomplete) Spider for 10” tube


By: rfic1 Location: CT

Selling some unused new condition components I was planning to use for a 8” newt. Novak mirror cell which I have been...

01 Aug 2020

Views: 54

Found!
$30.00

Wanted Spider/secondary for 7" OD tube


By: Augustus Location: Connecticut

Rebuilding my 6" f/4.3 and need a spider/holder (and maybe a secondary) for it. Secondary has to be between 1.5" and...

01 Aug 2020

Views: 32

Found!
n/a

Wanted 6" mirror cell


By: Augustus Location: Connecticut

Looking for a nice older 6" mirror cell that will fit a 7" tube.

31 Jul 2020

Views: 78


$100.00

Wanted WTB: Cheap objective for my first build


By: Milasdavid Location: New York

Hi, I'm looking to start my first DIY build and would like to start with a reflector in the 8" range, though feel f...

31 Jul 2020

Views: 333

Sold!
$150.00

For Sale 10" f/5 Full-Thickness Pyrex Primary Mirror


By: Augustus Location: Connecticut

Very nice figure and glass but unfortunately coatings are completely shot. No scratches/etc. Was made at Dick Parker'...

31 Jul 2020

Views: 263


$60.00

For Sale Royal Astro 78mm dia f16 Objective in cell


By: Sean Cunneen Location: IL

Original condition, lenses on good shape, one very small clam chip on edge that can be covered by a foil spacer if ne...

31 Jul 2020

Views: 94

Sold!
$20.00

For Sale Celestron Firstscope 114 EQ matching mirrors very clean


By: FC-100N Location: Veradale, WA

This is a matching set of 1999 Celestron (Suzhou Synta of China) Firstscope 114 EQ matching mirrors. I will add that...

29 Jul 2020

Views: 156

Sold!
$250.00

For Sale 3.5" MA Antares secondary mirror


By: acochran Location: Sonora, CA

I purchased this 1/30 wave secondary mirror from Antares several years ago, for a 16" Dob, then sold the Dob. Hardly...

29 Jul 2020

Views: 189

Sold!
$100.00

For Sale Drive parts for vintage Cave Astrola telescope


By: Kevin Brose Location: Colorado

3rd party ad approved by Admin Don W Selling parts for a vintage Cave Astrola telescope mounting. Consists of origi...

28 Jul 2020

Views: 187


$995.00

For Sale CerVit Mirror Blank, 16.00 inches by 1.72 inches thick


By: PeteDCard81 Location: Good

CerVit mirror blank, 16.00 inches by 1.72 inches thick. Blanchard ground flat both sides and precision ground edge. S...

28 Jul 2020

Views: 133

Sold!
$35.00

For Sale 8" ~f/6 Pyrex Uncoated Primary/Blank


By: Augustus Location: Connecticut

Not in the best shape. Lots of scratches, a few edge chips (none really intruding on the usable surface area, especia...

28 Jul 2020

Views: 212

Sold!
$90.00

For Sale Mirror cells - University Optics(?)


By: Augustus Location: Connecticut

8" and 10". I believe the 10" is definitely UO and the 8" is either Edmund or UO. Decent shape. $35 for the 8" and $6...

27 Jul 2020

Views: 117


$40.00

For Sale 4" f/11.27 Primary Mirror


By: MASILMW Location: US

4" f/11.27 Primary Mirror The focal length is 1150mm. The mirror is made of Pyrex. and is probably spherical but, tha...

27 Jul 2020

Views: 82


$28.00

For Sale 70mm Air-Spaced Achromat in Metal Cell


By: MASILMW Location: US

70mm Air-Spaced Achromat in Metal Cell The focal length is 315mm f/4.5. Made by Carton Optical in Japan. The lenses a...

27 Jul 2020

Views: 67


$26.00

For Sale 60mm x 300mm FL Achromat


By: MASILMW Location: US

60mm x 300mm FL Achromat This f/5 Achromat is cemented and is Fully Multi-Coated. The clear aperture is 60mm in a cel...

23 Jul 2020

Views: 317

Sold!
$160.00

For Sale 10" f/4.5 Meade Starfinder Primary Mirror


By: Augustus Location: Connecticut

This was going to be for a travelscope project but I have decided to forego it for now. Coating is starting to wear b...

23 Jul 2020

Views: 138


n/a

Wanted Tube rings for 127mm /130mm tube.


By: astropinci Location: Western Mass

Looking for a used pair of tube rings for my 130mm tube. Thanks

23 Jul 2020

Views: 374

Sold!
n/a

For Sale mounted first surface mirrors, binocular objectives in cells *FREE*


By: wsx Location: Wilmington, NC

These items have been in storage and appear to be in excellent cosmetic and optical condition. 5-mounted first surfac...

22 Jul 2020

Updated: 22 Jul 2020

Views: 163

UPDATED
$0.01

Wanted Tube for 80mm refractor


By: SarverSkyGuy Location: USA

Looking for thin wall aluminum tube 84.6mm I.D., minimum of 9" length or longer. Thanks

21 Jul 2020

Views: 262


$15.00

For Sale Misc. Achromats


By: MASILMW Location: US

60mm Air-Spaced Achromats (no cell) 400mm FL - has a very small scratch $18.00 700mm FL - $15.00 750mm FL - $15.00 90...

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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