Jump to content


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.

Toggle Announcements and News Announcements and News

  Forum Stats Last Post Info

Cloudy Nights Announcements

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

  • 711 topics
  • 556 replies
Here's wishing everyone... - last post by Tom T

Discussion of CN Articles, Reviews, and Reports

A place to discuss the articles posted on Cloudy Nights

Forum moderators: Dan Crowson, The Ardent
  • 2389 topics
  • 27188 replies
BRESSER 4 Inch f 4.5 AR 102... - last post by DIMITRIS K.

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
  • 230 topics
  • 25 replies
July 2018 Celestial Calendar - last post by Dave Mitsky

Toggle General Astronomy General Astronomy

  Forum Stats Last Post Info

Beginners Forum

A place for people new to the hobby to ask their questions and receive some helpful answers. We're here to help you.

  • 28094 topics
  • 442209 replies
Decided on a 10" Dob - last post by rowdy388

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, noisejammer, pastortim
  • 10148 topics
  • 177582 replies
Venus - Moon Conjuntion 7/15 - last post by psybiggs


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
  • 851 topics
  • 8746 replies
Canterbury Astronomical Soc... - last post by Stopforths

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: cbwerner, csa/montana, Goofi, lylver, Relativist
  • 1592 topics
  • 18855 replies
Where to move out west for... - last post by claysshotgunner

Toggle Equipment Discussions Equipment Discussions

  Forum Stats Last Post Info

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: Benach, GShaffer, noisejammer, Starman81
  • 18533 topics
  • 289527 replies
Alternate pitch lap materia... - last post by highertheflyer


"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

  • 15541 topics
  • 228871 replies
What did you see last night... - last post by GrahamDFyffe


Binoviewer discussion forum

  • 4709 topics
  • 49011 replies
Question about Binoviewers - last post by PETER DREW

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: cbwerner, GShaffer, Jaimo!, Starman27
  • 16625 topics
  • 248355 replies
8" SCT vs. 5" Mak-C... - last post by Gary Z

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 1980's - refractors, reflectors, and early SCT's. Discussing all aspects of restoring, collecting, and observing with older scopes.

Forum moderators: Joe Eiers, Ken Sturrock, rgsalinger
  • 13118 topics
  • 325650 replies
Craigslist, eBay, and other... - last post by Bomber Bob


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: cbwerner, Ken Sturrock, rgsalinger
  • 26135 topics
  • 305027 replies
Celestron 6E or similar sco... - last post by markm75c


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

Forum moderators: cbwerner, Cotts, FirstSight, Jaimo!, lylver
  • 29188 topics
  • 507346 replies
Eyepiece Series Outliers -... - last post by MitchAlsup


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.

  • 27975 topics
  • 316616 replies
Considering the iOptron AZ... - last post by BGeoghegan


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.

  • 5197 topics
  • 102726 replies
Ivanhoe Observatory Build T... - last post by Cotts


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

Forum moderators: cbwerner, Goofi, GShaffer, kcb, Knuklhdastrnmr
  • 20057 topics
  • 326760 replies
16" Dob.:  SW Collapsab... - last post by gene 4181


A forum for discussing refractor telescopes.

  • 25587 topics
  • 527023 replies
TMB 105/650 CNC - last post by buddy ny

Celestron SkyScout and Meade mySky

A dedicated forum for the Celestron SkyScout and Meade mySky hand held planetariums. (archive)

  • 384 topics
  • 2907 replies
New moderator - last post by Moondoggy

Toggle Astrophotography and Sketching Astrophotography and Sketching

  Forum Stats Last Post Info

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: Goofi, Mike I. Jones, nmoushon
  • 38500 topics
  • 380992 replies
First lunar image with asi1... - last post by MK_Photography

Film Astrophotography

Discussions about astrophotography using film.

Forum moderators: Erik Bakker, moabyte, Uwe Pilz
  • 2428 topics
  • 16684 replies
How to overcome reciprocity... - last post by Joe F Gafford

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: LLEEGE, moabyte, pastortim, Starman27
  • 38621 topics
  • 315126 replies
Adapter question. - last post by Dynan

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, Joe Eiers, Oldfield
  • 37878 topics
  • 317473 replies
The Great Wall in Cygnus in Ha - last post by ChrisWhite

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!

Forum moderators: moabyte, nmoushon, Starman81
  • 34879 topics
  • 243543 replies
Daylight Autoguiding: Progr... - last post by kevinbreen


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

Forum moderators: Jeff Struve, Susan H
  • 10287 topics
  • 100902 replies
Messier 27 with a modest ap... - last post by Randolph Jay

Astro Imaging/Sketching Contest

This forum is to be used to submit photos for the Astro Imaging/Sketching Contest.

  • 444 topics
  • 2960 replies
Astro-Video Submissions? Pr... - last post by BigBanger

Toggle Observing Observing

  Forum Stats Last Post Info

Solar System Observing

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

Forum moderators: Jaimo!, Jawaid I. Abbasi, orlyandico
  • 7162 topics
  • 71673 replies
2018 Mars Opposition Thread... - last post by Edrow10

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: Joe Eiers, kcb, Starman81
  • 5435 topics
  • 43719 replies
Moon observation during day... - last post by EverlastingSky

Deep Sky Observing

A dark place to discuss deep sky observing and observations

  • 8236 topics
  • 94746 replies
Spruce Tree/Christmas tree... - last post by Sasa

Double Star Observing

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

Forum moderators: noisejammer, Uwe Pilz
  • 2885 topics
  • 31498 replies
Image of Izar - last post by Cotts

Solar Observing and Imaging

Hot place to discuss solar observing and imaging topics

Forum moderators: GShaffer, Jaimo!, LLEEGE, Relativist
  • 28139 topics
  • 219340 replies
LUNT Question - last post by vincentv

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: noisejammer, rgsalinger, star drop
  • 1197 topics
  • 8448 replies
Possible eclipsing binary d... - last post by NJScope

Toggle Telescope Specific Forums Telescope Specific Forums

  Forum Stats Last Post Info

Celestron NexStar

Discussion forum for Celestron computerized telescopes and mounts using NexStar technology (NexStar, NexStar GPS, CPC, etc).

Forum moderators: junomike, pastortim
  • 13508 topics
  • 164904 replies
nexstar 4se alignment vs ca... - last post by pinkbirdactual

Questar Forum

A forum for discussing Questar and Quantum telescopes

Forum moderators: cbwerner, Erik Bakker, lylver
  • 1463 topics
  • 15017 replies
New Questar Standard is on... - last post by spereira

Meade Computerized Telescopes

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

  • 8906 topics
  • 77784 replies
LX200 DEC Drive Misbehaving - last post by rferrante

Toggle Speciality Forums Speciality Forums

  Forum Stats Last Post Info

Astronomy Shows & Conferences

A place to discuss, learn about and make plans for NEAF, Arizona Science and Astronomy Expo, imaging conferences and more.

Forum moderators: moabyte, orlyandico, Rocket Ron
  • 328 topics
  • 7233 replies
ALCON 2019 at KSC July 25-2... - last post by Wordserf

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, moabyte, The Ardent
  • 3861 topics
  • 40806 replies
What happened to Uncle Rod? - last post by rmollise

Astronomy Clubs and Star Parties

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

  • 2903 topics
  • 80421 replies
Stellafane 2018 - last post by roscoe

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.

Forum moderators: moabyte, rgsalinger
  • 6523 topics
  • 57058 replies
Ubuntu could be only 2 issu... - last post by Oleg Astro

EAA Observation and Equipment

Electronically Assisted Astronomy (EAA) is the use of a 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.

Forum moderators: cbwerner, kcb, star drop, Starman27
  • 6248 topics
  • 93485 replies
very dark night photonis XD... - last post by highfnum

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.

  • 4879 topics
  • 73377 replies
Dissolving the Fermi Paradox - last post by Joe1950

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: cbwerner, darklighteditor, Jeff Struve
  • 1092 topics
  • 10068 replies
What Is This? - last post by sickfish

North American Total Solar Eclipse 2017

A forum for discussion of all things related to the North American total solar eclipse of 2017 - events, outreach, equipment, etc.

** This forum is now read-only **

  • 819 topics
  • 8741 replies
Solar eclipse in July 2, 20... - last post by ed_turco

Toggle Other Other

  Forum Stats Last Post Info

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: lylver, Rocket Ron, Starman27
  • 1439 topics
  • 21927 replies
Help choosing first vintage... - last post by bumm

Toggle CN Feedback and Vendor Announcements CN Feedback and Vendor Announcements

  Forum Stats Last Post Info

Vendor and Group Announcements

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

Forum moderators: Benach, noisejammer
  • 4825 topics
  • 36700 replies
Demonstrator 10 inch Zeroch... - last post by mogur

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.

Recent Topics

  • 8549997 Total Posts
  • 110770 Total Members
  • steinerdieter Newest Member
  • 3024 Most Online

Cloudy Nights LLC
Cloudy Nights Sponsor: Astronomics