[ExI] the vortices of Jupiter

[BillK]

On Wed, Jul 2, 2008 at 8:16 PM, Damien Broderick wrote:
> I looked for comparable pix of Mars; this classic Map of Mars by Eugene
> Michael Antoniadi (1925) [ at
> http://www.planetary.org/explore/topics/timelines/mars_1700-1959.html ]
> isn't too hot, and makes me wonder whether one of Jupiter from that period
> would be any better.
>


Yes. The artist copied (and artistically enhanced) drawings or early
photographs from astronomical telescopes.
He has painted the Great Red Spot in the top hemisphere as
astronomical telescopes reverse the image.
The NASA spacecraft photos have the spot in the bottom hemisphere.

Wikipedia says that astronomers had drawn the Great Red Spot and the
bands since the 1800s, or even earlier.
<http://en.wikipedia.org/wiki/Jupiter>

They knew all about how the spots changed and saw the new spots that
appeared in the 1920s.
Huge URL for looking inside a book
<http://books.google.com/books?id=SO48AAAAIAAJ&pg=PA117&lpg=PA117&dq=1920+jupiter+spots&source=web&ots=h66I2X0FX5&sig=hWLQgtR_u-ih7Bw14rk15XOGN2A&hl=en&sa=X&oi=book_result&resnum=4&ct=result>

There is a tendency for people to say that if it cannot be found on
the web, then it doesn't exist (or never happened). You probably need
to go to a big library that has old astronomy books from before 1930
to see drawings and photos from that time.


BillK