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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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Cloudy Nights Announcements

News from the Cloudy Nights team pertaining to the website and forums

  • 727 topics
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New signature line limits - last post by Scott in NC

Discussion of CN Articles, Reviews, and Reports

A place to discuss the articles posted on Cloudy Nights

Forum moderators: Dan Crowson, The Ardent
  • 2,479 topics
  • 28,619 replies
FIELD TEST OF THE BAADER MA... - last post by Jethro7

Celestial Events

Welcome to Celestial Events, a bulletin board for announcements about currently or soon to be observable astronomical events. Need a finder chart for that bright comet? Want to know when the next meteor shower will peak? Looking for suggestions on what to observe? Visit regularly for answers to all your questions about what's happening now in the celestial show.If folks want to discuss these events, the staff of Cloudy Nights invites you to start or join a thread in the appropriate observing forum. Celestial Events is for announcements only.

Forum moderators: Dave Mitsky
  • 261 topics
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July 2020 Celestial Calendar - last post by Dave Mitsky

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Beginners Forum (No astrophotography here - please read the forum description)

A place for new astronomers to ask visual observing or basic equipment questions and report their findings.
- Advanced or specialized topics should be discussed in their dedicated forums.
- Beginning astrophotographers should read, and then post, in the Beginning & Intermediate Imaging Forum.

Forum moderators: Jond105, spereira, Starman27
  • 30,630 topics
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I can't see anything cl... - last post by havasman

General Observing and Astronomy

General Observing and Amateur Astronomy topics and questions that do not fit into our other forums. This includes unaided eye observing (satellites, weather, auroras etc) and non equipment topics (LASIK, observing sites, dressing for the cold/hot etc)

Forum moderators: csa/montana, Jond105, spereira, Uwe Pilz
  • 12,098 topics
  • 223,208 replies
RV/Trailer Astronomy Fact a... - last post by Jim4321


The official forum for the Astronomy Outreach Network. Post questions about Outreach, suggestions or even just publicize your Outreach events. If it has to do with promoting our great hobby, it goes here!

Forum moderators: Cotts, Jeff Struve, Starman27
  • 1,044 topics
  • 14,671 replies
Northeastern US (Maine) Dis... - last post by clearwaterdave

Light Pollution

While CN does not typically allow politics, this is one forum in which the discussion of legislation dealing with this matter is permitted. This is a problem that will eventually affect all of us to one degree or another.

Forum moderators: csa/montana, MJB87
  • 1,895 topics
  • 23,347 replies
Minor Progress, Boxborough, MA - last post by Toups

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ATM, Optics and DIY Forum

Amateur Telescope Making (ATM) and any do it yourself related activities. Ask questions, discuss and post pictures of telescope related projects, optics, telescopes, observing chairs, etc.

Forum moderators: GShaffer, Sean Cunneen, Starman81
  • 21,046 topics
  • 344,805 replies
3D Printed Astronomy - last post by brave_ulysses


"Best Of Binocular" Library, How to Choose, Equipment Minireviews, Observation Reports, Testing Aspects, Aberrations and Deficiencies, Books, Binocular Mounts, Observing Lists, Exit Pupil vs Eye Pupil, Binocular Vision and more

Forum moderators: Erik Bakker, Jawaid I. Abbasi, Uwe Pilz
  • 17,236 topics
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A new Swarovski NL Pure? - last post by Grimnir


Binoviewer discussion forum

Forum moderators: Jawaid I. Abbasi, junomike, nmoushon
  • 5,047 topics
  • 53,281 replies
Carl Zeiss APO Binoviewers - last post by swsantos

Cats & Casses

A forum for discussing Cassegrain (Classic Cassegrain, Ritchey-Chrétien, Dall–Kirkham, etc) and Catadioptric telescopes (Schmidt and Maksutov Cassegrains, ACF, Edge HD, etc).

Forum moderators: gustavo_sanchez, Jaimo!, Starman27
  • 18,997 topics
  • 287,512 replies
GSO CC 6 inch Collimation M... - last post by isogroup

Classic Telescopes

Telescopes from an era gone by. The place to discuss older telescopes. Antiques, flea market finds, and scopes from grandpa's attic. From the 1780's to the mid-1990's - refractors, reflectors, and early SCT's. Discussing all aspects of restoring, collecting, and observing with older scopes. Discussion of 25-year-old scopes still in production is OK but please don't post newer examples of those, except for actual side-by-side comparisons to demonstrate detail changes.

  • 14,820 topics
  • 388,216 replies
Mounting a wedge on a Celes... - last post by ANM


A forum for any general equipment discussion, accessories and a great starting point if you are not sure where to post that burning question about equipment.

Forum moderators: Jeff Struve, rgsalinger, Stelios
  • 30,744 topics
  • 352,819 replies
Backpack for gear - last post by Hesiod


A place to discuss our favorite eyepieces and eyepiece accessories, barlows, filters, etc.

Forum moderators: Cotts, FirstSight, Jaimo!, Wisconsin Steve
  • 32,222 topics
  • 579,160 replies
Are Tele Vue JAPAN circle N... - last post by j.gardavsky


A Forum to discuss all types of mounts and mount accessories - including computerized, manual, GEM, fork mount, parallactic, alt-az, DSCs, PushTo and GoTo systems.

Forum moderators: alphatripleplus, Jaimo!, star drop
  • 33,393 topics
  • 382,763 replies
Tripod leg brace/accessory... - last post by jfinizolas

Night Vision Astronomy

Night Vision Astronomy is astronomy performed with analog or digital devices capable of producing a real time view of celestial objects. This forum allows discussion of the equipment, its configuration and use, observing reports made using the devices, techniques for image capture, and the sharing of images the observer made to record their observations.

Forum moderators: Jond105, star drop, Starman27
  • 1,104 topics
  • 16,228 replies
Ready to use my OVNI-M - last post by nimitz69


A forum for discussing the ins and outs of current observatories as well as sharing designs, and ideas. Manufacturers and Vendors are invited to attend.

Forum moderators: Dan Crowson, MJB87, nmoushon
  • 5,943 topics
  • 114,704 replies
Project: Cinder Block Pier - last post by CCD-Freak


A forum for discussing Newtonian type reflecting telescopes (including Schmidt and Maksutov designs as well as Herschelian, Off-Axis, etc).

Forum moderators: flyingcougar, GShaffer, spereira
  • 22,133 topics
  • 366,845 replies
Questions for the dobsters... - last post by havasman


A forum for discussing refractor telescopes.

Forum moderators: FirstSight, junomike, rgsalinger, Uwe Pilz
  • 29,053 topics
  • 626,409 replies
Bresser Telescopes - last post by cookjaiii

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Beginning and Intermediate Imaging

This forum is mainly intended for beginners getting started imaging DSOs as well as intermediate imagers looking to improve their technique. Please read the forum rules before you post!

Forum moderators: johnsoda, nmoushon, spereira, Stelios
  • 49,863 topics
  • 505,835 replies
PHD Re-calibration - last post by lantosque

Film Astrophotography

Discussions about astrophotography using film.

Forum moderators: CharlieB, Erik Bakker, Uwe Pilz
  • 2,514 topics
  • 17,504 replies
35mm astrophotography still... - last post by jgraham

DSLR & Digital Camera Astro Imaging & Processing

This forum is for DSLR & Digital Camera Astro imaging. Those folks with regular digital cameras are welcome to post here. Discuss equipment, techniques, software; and of course, post your photos! Please read the forum guidelines inside the forum for more info.

Forum moderators: johnsoda, rgsalinger, Starman27
  • 43,208 topics
  • 352,870 replies
Galactic core region w/6D... - last post by MHamburg

CCD/CMOS Astro Camera Imaging & Processing

This forum is for more advanced discussion involving dedicated cameras for deep sky astrophotography, using CCD or CMOS sensors. A place to discuss techniques, software, and engage in friendly conversations.

Forum moderators: Dan Crowson, flyingcougar, johnsoda, Stelios
  • 46,210 topics
  • 391,314 replies
Autoguiding from tall building - last post by jamesNewmanF125

Solar System Imaging & Processing

A forum to post images of the Sun, Moon, Planets and other objects winging through the Solar System. All Camera types are invited to post images and discuss techniques, software and engage in friendly competition. Please read the image posting guidelines before you post!

  • 39,628 topics
  • 273,140 replies
Jupiter 2nd July - last post by dhammy


A forum for the discussion of sketching stellar objects, and displaying user drawings.

Forum moderators: frank5817, Jeff Struve, Uwe Pilz
  • 11,880 topics
  • 113,088 replies
3 From 4 Planets This a.m. - last post by David Gray

Electronically Assisted Astronomy (EAA)

Electronically Assisted Astronomy (EAA) is the use of an analog or digital image capturing device in lieu of an eyepiece at the telescope. Here members can talk about the equipment used, share their observing experiences, and post sketches and images captured with EAA devices.

  • 6,993 topics
  • 102,418 replies
Tips for Eaa telescope - last post by mclewis1

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Solar System Observing

A friendly place to discuss planetary & solar system object observing.

  • 7,869 topics
  • 79,618 replies
Jupiter Before AND After Su... - last post by chrysalis

Lunar Observing

A forum dedicated to the observation and appreciation of our Moon. Join us in the Lunie Bin and learn about the only world other than the Earth to bear the imprint of human feet. Images and sketches are most welcome. (Please limit the size of image files to 500K.)

Forum moderators: frank5817, gustavo_sanchez, Starman81
  • 5,999 topics
  • 48,087 replies
Moon Maiden 6-30-20 - last post by flt158

Deep Sky Observing

A dark place to discuss deep sky observing and observations

Forum moderators: CharlieB, Jond105
  • 8,915 topics
  • 104,866 replies
Omega Centari - last post by Bill Barlow

Double Star Observing

Double Stars, Rayleigh Limit and Dawes Limit; a place for observers with split personalities.

Forum moderators: CharlieB, Jond105, Uwe Pilz
  • 3,427 topics
  • 36,377 replies
16 Vulpeculae (STT 395) - last post by mccarthymark

Solar Observing and Imaging

Hot place to discuss solar observing and imaging topics

Forum moderators: GShaffer, gustavo_sanchez, Jaimo!, junomike
  • 30,952 topics
  • 243,127 replies
More nice proms today 7/2/2020 - last post by MalVeauX

Observational Astrophysics

A place to record your methods and observations that relate to stellar dynamics and evolution, including variable and carbon stars. Spectroscopy, photometry and radio astronomy are particularly welcome.

Forum moderators: Cotts, rgsalinger, star drop
  • 1,497 topics
  • 10,829 replies
Slitless Spectroscopy - last post by pbealo

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Celestron Computerized Telescopes

Discussion forum for Celestron computerized telescopes and mounts using NexStar and StarSense technologies, including CPC, CPC Deluxe HD, NexStar SE/SLT/Evolution, etc.

Forum moderators: junomike, MJB87
  • 15,227 topics
  • 183,841 replies
Limited Edition... Celestron? - last post by MikeMiller

Questar Forum

A forum for discussing Questar and Quantum telescopes

Forum moderators: Erik Bakker, johnsoda, Wisconsin Steve
  • 1,981 topics
  • 22,625 replies
Solar Filter Cases - last post by TerryWood

Meade Computerized Telescopes

A forum to discuss advanced Meade scopes. Among them the ETX, LX90, LX200, LX200 GPS, RCX, and the LX200 ACF series.

Forum moderators: Starman27, Starman81
  • 9,738 topics
  • 83,852 replies
PecPrep files to lx200gps - last post by Wford

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Astronomy Clubs, Star Parties, Shows, & Conferences

For discussion and announcements of astronomy club meetings, star parties, astronomy conferences and other events.

Forum moderators: GShaffer, Jawaid I. Abbasi, spereira
  • 3,589 topics
  • 93,881 replies
2020 Nebraska Star Party (J... - last post by Philler

Astro Art, Books, Websites & Other Media

A place to share your astronomy artwork (non-photographic) and *non* commercial astronomy websites and discuss astro related books, magazines, charts, movies and TV shows.

Forum moderators: junomike, spereira, The Ardent
  • 4,402 topics
  • 46,229 replies
Big Ear Two, by John D. Kraus - last post by johrich

Astronomy Software & Computers

This is the place to discuss all things associated with computers & gadgets, both hardware and software (including PDAs, smartphones, tablets, laptops, astronomy programs and apps, Celestron SkyScout and Meade MySky devices, etc.) -- as they relate to astronomy.

  • 7,731 topics
  • 66,393 replies
Stellarium Off Axis guider... - last post by Ben Diss

Science! Astronomy & Space Exploration, and Others

Discuss all science topics, particularly the sciences relating to Astronomy and Space Exploration. This includes all the natural sciences: Physics, Chemistry, Geology, and Biology. They can include applied sciences such as engineering and construction as well. Wherever the scientific method is used, you can discuss it here. As always, no politics, pseudo-science, crack-pottery, or anti-science.

Forum moderators: FirstSight, GShaffer
  • 5,373 topics
  • 80,643 replies
Time to sort out the word u... - last post by hambone20

Space Rocks

This is the place to discuss meteorites and related subjects - including tektites, impact theories, and parent bodies. Got a question about collecting or caring for your meteorites? Ask it here.

Forum moderators: Jeff Struve
  • 1,169 topics
  • 10,670 replies
How to clean rust off Palla... - last post by lee14

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Cloudy Days & Microscopes

This forum is to discuss birding and other daytime or indoor terrestrial usage of optics, and related equipment; e.g. microscopes.

Forum moderators: Starman27
  • 1,538 topics
  • 22,595 replies
Microscope Light Recommenda... - last post by Mike E.

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Vendor and Group Announcements

A place for vendors and non-CN related organizations to post announcements.

Forum moderators: CharlieB, flyingcougar, rgsalinger
  • 5,690 topics
  • 43,090 replies
4th of July Sale - last post by Hamzakt

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S&S Telescopes

OTAs and complete telescope setups. - ** This forum is now read-only **

  • 2,812 topics
  • 11,582 replies
Lunt LS50T Ha solar scope w... - last post by whirlpoolm51

S&S Eyepieces

Eyepieces and barlows only please! - ** This forum is now read-only **

  • 4,123 topics
  • 11,775 replies
S&S Forums phasing out - last post by WOBentley

S&S Imaging

Got imaging gear to move or buy? This is da place. Cameras (CCD and Film), filter wheels, lenses, etc... - ** This forum is now read-only **

  • 1,298 topics
  • 2,692 replies
FOR SALE-NIKON D40 WITH LENS - last post by The Ardent

S&S Mounts

The place to place mounts and mount accessories (drives, tripods, goto systems, polar scopes, encoders, etc...) - ** This forum is now read-only **

  • 2,228 topics
  • 6,116 replies
Antares? Equatorial Mount H... - last post by scopeboy42

S&S Binoculars

For the sale and trade of binoculars and binocular accessories... - ** This forum is now read-only **

  • 441 topics
  • 1,414 replies
Oberwerk Mariner 8x40 - last post by 39.1N84.5W

S&S Misc Astro

Antiques, books and magazines, software, filters, finders, guidescopes, cases, diagonals, meteorites, visual assisted astro gear, binoviewers, computers/PDA's, and anything not covered by one of the other S&S forumsYou must be logged in to view this forum. - ** This forum is now read-only **

  • 13,012 topics
  • 43,090 replies
WANTED:  2" H Alpha Filter - last post by FebStars

S&S Forum Rules & Information for New Members

The Swap & Shop forums are intended for Cloudy Nights members to buy, sell and trade personal astronomy related equipment. You will need to be a member for at least 30 days and have at least 30 posts in other forums in order to access these forums. - ** This forum is now read-only **

  • 2 topics
  • 0 replies
S&S Forums phasing out - last post by WOBentley

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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