Re: The depth of the Sun's photosphere

Try Novotny.

Saul Levy

On 6 Sep 2005 16:15:36 -0400, willner@xxxxxxxxxxxxxxx (Steve Willner)
wrote:

>In article <1125652032.689065.180520@xxxxxxxxxxxxxxxxxxxxxxxxxxxx>,
> "Jeff Root" <jeff5@xxxxxxxxxxxx> writes:
>> I don't recall seeing [a lineprinter]
>
>They haven't existed for years. I probably have some output from one
>around here somewhere, but just scanning my desk and bookshelves
>doesn't show any.
>
>> I have some programs stored on punched paper tape.
>
>I got rid of all my paper tapes years ago. Also all my punch cards.
>They are probably collectors' items by now. I still have some
>9-track mag tapes, though.
>
>> Base as in "bottom". The transition from whatever is below
>> the photosphere, to the photosphere.
>
>Sorry, I don't know any name for that. It isn't a sharp transition,
>and it isn't directly observable. "Base of the convection zone" is
>the only thing I can think of. That probably is a fairly sharp
>transition (comparable to a density scale height or something like
>that), though this is just a guess.
>
>> So an observer in a well-cooled
>> helioship might see over a hundred kilometers horizonally,
>> almost 500 kilometers straight up, and a few tens of
>> kilometers straight down.
>
>Good thing to put on your web site!
>
>Bruce: I don't find any stellar atmosphere text by "Nowotny" in the
>Harvard library catalog. Of course they might have discarded it or
>never bought it in the first place, but could there be another
>spelling of the name?
.