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Cloudy Nights Announcements

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

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Happy New Year to all! - 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
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The Discoveries of Galileo... - last post by E-Ray

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
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January 2021 Celestial Cale... - last post by Dave Mitsky

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Beginners Forum (No astrophotography)

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 whichever imaging forum is most appropriate to their subject.

Forum moderators: Jond105, spereira, Starman27
  • 31,982 topics
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Tips for buying my first Zo... - last post by LDW47

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
  • 12,486 topics
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Does Polaris change elevati... - last post by BQ Octantis


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, mdowns, Starman27
  • 1,078 topics
  • 15,808 replies
Boy Scout ASTRONOMY MERIT B... - last post by greenjuice

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, osbourne one-nil
  • 1,990 topics
  • 25,298 replies
Composition of Evolving Sky... - last post by Delta608

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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: cuzimthedad, rgsalinger, Sean Cunneen
  • 21,863 topics
  • 360,444 replies
Quality expectations of mir... - last post by Lucullus


"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, Uwe Pilz
  • 17,954 topics
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Heine & Co. Ranger Bino... - last post by Ladder8fire


Binoviewer discussion forum

Forum moderators: junomike, nmoushon, noisejammer
  • 5,205 topics
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Need more in focus for my r... - last post by noisejammer

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).

  • 19,856 topics
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Collimating my SCT - last post by dcaponeii

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.

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Polaroscope 114E - last post by walter a


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. You may get better answers to specialized questions in other fora (astrophotography, mounts, etc).

Forum moderators: imtl, MJB87, rgsalinger, Stelios
  • 33,060 topics
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Experience with Explore Sci... - last post by CeeKay


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

  • 33,504 topics
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Eyepiece Cleaning - last post by Wisconsin Steve


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!, MJB87
  • 35,451 topics
  • 406,300 replies
iOptron GEM45 - last post by meansrt

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, Starman27
  • 1,306 topics
  • 18,985 replies
using an NVD with an SCT - last post by chemisted


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
  • 6,207 topics
  • 118,545 replies
Roll-Off Buildings - last post by Allan Wade


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

  • 22,992 topics
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May buy a 18" Obsession - last post by CHASLX200


A forum for discussing refractor telescopes.

  • 30,168 topics
  • 652,303 replies
FSQ-85ED & FSQ-85ED w/F... - last post by edif300

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Major & Minor Planetary Imaging

This forum is intended for discussion related to the imaging and processing of anything in the solar system other than our sun and our moon. Solar imaging discussion should occur in the target-oriented “Solar Observing & Imaging” forum. Posts about imaging our moon should go in the target-oriented “Lunar Observing & Imaging” forum. Aesthetic Deep Sky Object Imaging should generally be discussed in the Beginning or Experienced DSO Imaging Fora.

Forum moderators: nmoushon, Sean Cunneen, spereira, TimN
  • 42,781 topics
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Mars 23-Nov-2020 - last post by John Boudreau

Beginning Deep Sky Imaging

This forum is intended for discussion related to beginning Deep Sky Object (DSO) imaging using any type of camera or mount. If you are interested in specialized or more sophisticated DSO techniques or are interested in imaging non-DSO targets please start your topic in a more appropriate forum.

Forum moderators: imtl, nmoushon, Stelios, TimN
  • 54,269 topics
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Weird patterns on my stacke... - last post by Scott Mitchell

Experienced Deep Sky Imaging

This forum is intended for discussion about practice & theory related to prime-focus Deep Sky Object (DSO) imaging through a telescope using any type of camera. If you are a beginner or interested in more specialized types of imaging, please use the appropriate forum.

Forum moderators: Dan Crowson, Stelios, TimN
  • 48,858 topics
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My first Mono/Ha-LRGB - Bor... - last post by maxsid

DSLR, Mirrorless & General-Purpose Digital Camera DSO Imaging

This forum is for more advanced discussion about accessories, techniques or approaches to astrophotography with general purpose (not astronomy dedicated) digital cameras. Topics include (but are not limited to): advanced afocal approaches, minimalist & camping rigs, nightscape photography, accessories & modifications. Discussions involving prime focus imaging with general purpose cameras can certainly occur here, but are also welcome in the Beginning or Experienced DSO Imaging Fora.

Forum moderators: rgsalinger, Starman27, TimN
  • 45,059 topics
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Focusing problem, DSLR thro... - last post by Porkkala

Film Astrophotography

Discussions about astrophotography using film.

Forum moderators: CharlieB, Erik Bakker, Uwe Pilz
  • 2,538 topics
  • 17,699 replies
Film Advance in Cold (OM-1n) - last post by Joe F Gafford

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.

Forum moderators: alphatripleplus, Sean Cunneen, Starman27
  • 7,437 topics
  • 108,317 replies
EAA Image Gallery - last post by Shaney


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

Forum moderators: frank5817, mdowns, Uwe Pilz
  • 12,473 topics
  • 117,529 replies
Three John Herschel cluster... - last post by Tyson M

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Solar System Observing

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

Forum moderators: gustavo_sanchez, Jaimo!
  • 8,311 topics
  • 85,156 replies
Blast from the Past: Add Yo... - last post by chrysalis

Lunar Observing and Imaging

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, Umasscrew39
  • 6,339 topics
  • 51,517 replies
Dark Side of the Moon, Janu... - last post by Tom Glenn

Deep Sky Observing

A dark place to discuss deep sky observing and observations

Forum moderators: CharlieB, cuzimthedad, Jond105, spereira
  • 9,135 topics
  • 108,585 replies
What DSO did you just obser... - last post by 7evendot

Double Star Observing

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

Forum moderators: CharlieB, Jond105, Uwe Pilz
  • 3,602 topics
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Mira a.k.a. Omicron Ceti a.... - last post by flt158

Solar Observing and Imaging

Hot place to discuss solar observing and imaging topics

Forum moderators: gustavo_sanchez, Jaimo!, junomike
  • 31,999 topics
  • 252,497 replies
Herschal Wedges - last post by philmor56

Scientific Amateur Astronomy

A forum where amateurs can discuss their contributions to fields such as spectroscopy, photometry, astrometry, interferometry, and radio astronomy. Astronomical objects of interest may include variable and carbon stars, pulsars, supernovae, AGNs, exoplanets, asteroids, and short-lived energetic phenomena such as GRBs. The presentation of quantitative observational measurements, techniques used for acquisition, and relevant ensuing discussion are especially welcome.

Forum moderators: Cotts, rgsalinger
  • 1,622 topics
  • 11,887 replies
Bright nova in Perseus - N... - last post by mwr

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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: Cotts, junomike, MJB87
  • 16,069 topics
  • 192,840 replies
Replacing the Celestron Sta... - last post by WIZARD1325

Questar Forum

A forum for discussing Questar and Quantum telescopes

Forum moderators: Erik Bakker, Wisconsin Steve
  • 2,131 topics
  • 24,556 replies
16 and 12mm Brandons and Se... - last post by Optics Patent

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: osbourne one-nil, Starman27, TimN
  • 10,159 topics
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Meade lx200 16" f10 dim... - last post by carolinaskies

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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: spereira, Umasscrew39
  • 3,657 topics
  • 94,897 replies
The Astronomical League - last post by jlcop

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
  • 4,640 topics
  • 48,821 replies
What's the 'kp'... - last post by MSFFT

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: alphatripleplus, imtl, rgsalinger
  • 8,265 topics
  • 70,628 replies
Sky Safari 6 Pro: cannot re... - last post by DHEB

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: cuzimthedad, Dan Crowson, FirstSight
  • 5,547 topics
  • 83,790 replies
Science Jokes - last post by chrysalis

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: mdowns, TimN
  • 1,213 topics
  • 10,956 replies
Is this is shergottite genu... - last post by nighthoek

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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: Sean Cunneen, Starman27
  • 1,591 topics
  • 22,859 replies
stacking images - last post by Jeff Lee

Toggle CN Feedback and Vendor Announcements CN Feedback and Vendor Announcements

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Vendor and Group Announcements

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

Forum moderators: CharlieB, osbourne one-nil, rgsalinger
  • 5,864 topics
  • 44,497 replies
New Startup N-Dimensional T... - last post by n-dtech.com

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