James Nangle at Marrickville in New South Wales using a 6.25
inch telescope which I have recently discovered was a Thomas Cooke rather that
a Thomas Cooke and Sons telescope observed Mars in 1909.
He described the darkish areas to have a greenish tinge,
with the Mars Cimmerium and Syrtis Major looking like the tops of trees in an
Australian valley when seen from the top of a mountain. The northern snows were
also well seen. There appeared none of the canals that had been drawn by
Schiaparelli or Lowell.
On almost all occasions when a great increase in definition
was required a screen of mosquito net was placed immediately in front of the
object glass. Such a screen is evidently a good idea, since it slightly reduces
the glare without interfering with the separating power, that vital point in
all detailed planetary observations.
www.theramblingastronomer.co.uk
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