Talk:Astronomical seeing

message: I've added some material from the introduction to my thesis:
http://www.mrao.cam.ac.uk/telescopes/coast/theses/rnt/node2.html
Rnt20 09:25, 18 Apr 2005 (UTC)
thread_title:  Material added from my thesis 

message: There's an inconsistency in the article - atmospheric seeing and astronomical seeing are used interchangeably without explanation - both terms should be explained at the start then one used throughout, but I'm not sure which is the more common term. I was under the impression in was "atmospheric seeing", but the article seems to redirect both to astronomical. ChowRiit (talk) 08:21, 2 June 2008 (UTC)
thread_title:  Inconsistency 

message: Perhaps a section discussing the myth of "only stars twinkle" would be worthwhile.  —Preceding unsigned comment added by Lzkelley (talk • contribs) 04:15, 13 November 2008 (UTC)
thread_title:  Mythology 

message: Doesn't seem to be any information here about what sort of weather conditions give good seeing. --118.90.14.109 (talk) 04:25, 6 March 2009 (UTC)
replies: text: I agree, this Wikipedia entry is woefully incomplete. It goes into advance math, yet fails to list any general properties of the earths atmosphere that causes the severity of the phenomenon. 104.220.147.148 (talk) 07:49, 17 June 2022 (UTC)
thread_title:  Best conditions? 

message: I plan on adding information about the more general problem of "Optical Turbulence" and I am looking for input on how best to relate this to the present article (i.e. add to Astronomical seeing vs new article vs combination of the two.)
The subject goes beyond just the problem of imaging astronomical objects approximately vertically through the atmosphere i.e. how is an optical field affected by turbulence (in general and atmospherical turbulence specifically).  Applications will include both imaging through turbulence (such as in astronomy), but also other applications such as communication (which include ground to satellite, satellite to ground, and horizontal path).  For more detail about what to expect, I will be drawing heavily from the following source (as well as a number of original sources in the scientific literature) "http://www.amazon.com/Propagation-through-Random-Second-Monograph/dp/0819459488/ref=sr_1_1?ie=UTF8&qid=1312862088&sr=8-1"
Punk physicist 23:20, 9 August 2011 (UTC)
thread_title:  "Optical Turbulence" as a separate article vs added to [[Astronomical seeing]] vs both 

message: (In response to Sections 7 and 9)
Seeing and twinkling are distinct phenomena. Seeing refers to image motion and image blur (i.e. tilt of wave-fronts), while twinkling is the naked-eye perception of scintillation, i.e. variations of intensity (brightness) caused by curvature of wave-fronts. Scintillation is caused by high-altitude turbulence (winds) while seeing is affected by turbulence at all altitudes down to ground. There is no general correlation between seeing and twinkling - they are different phenomena with different causes - but there is a dependency on aperture and integration time which produces an apparent correlation for naked-eye viewing: we see stars twinkling most when seeing is poor. Poor seeing does not cause twinkling.
Hence I would disagree with a merger of twinkling and seeing, but I would agree with an entry covering optical turbulence, to include image motion/blur and scintillation as distinct phenomena. Though I note that an entry on scintillation exists already.
Suggested reference: C.E. Coulman, Fundamental and Applied Aspects of Astronomical "Seeing", Ann. Rev. Astron. Astrophys. 1985. 23: 19-57  — Preceding unsigned comment added by Lidolstar (talk • contribs) 10:05, 18 February 2014 (UTC)
thread_title:  Seeing, twinkling and turbulence 

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thread_title:  External links modified