Re: Galileo's scope

Roger Hamlett <rogerspamignored@xxxxxxxxxxxxxxxxxxx> wrote in message
news:2_LLf.15638$gB4.7507@xxxxxxxxxxxxxxxxxxxxxxx

"Mark" <rollocks@xxxxxxxxxxxx> wrote in message
news:u1ouv1pecp5bu7dfa3gcke9ojgojdu2f6p@xxxxxxxxxx
Considering you can spend 200squids on a telescope and just manage to
see a single ring around Saturn, and some of the moons as dots, which
is Galileo saw some centuries ago, I'm assuming that whilst he
obviously benefitted from next to no light pollution, he must have had
some nifty optics for the time?
For the time, yes. However the view through even a scope like the most
basic $50 'starter scope', is probably better...
A huge amount is down to your own eyesight, the lack of light pollution,
looking again and again, and actually learning to 'see'. The magnification
was slightly higher than would be offered by most binoculars, but suffered
from massive aberrations away from the centre of the FOV, and a lot of
chromatic aberration.
For £200, _on the days when seeing is good_, you should be able to achieve
perhaps 5*the resolution his scope was capable of.

Best Wishes



What was the optical aberration that lead both Schiaparelli
and Lowell to see as canali on Mars ? or was it
a mind's eye thing ? ie can it be replicated today ?


.

Relevant Pages

  • Re: Galileos scope
    ... is Galileo saw some centuries ago, ... However the view through even a scope like the most ... A huge amount is down to your own eyesight, the lack of light pollution, ...
    (uk.sci.astronomy)
  • Re: Advice on eye pieces
    ... I too had considered the EP and filter set but I've had the scope just too ... long to qualify for half price. ... "A collision at sea can ruin your entire day." ... Still I would much rather have a rain, cloud, light pollution free night ...
    (sci.astro.amateur)
  • Re: Yet another noob question
    ... a bigger scope will gather more light pollution too. ... light pollution painted across the sky; ...
    (uk.sci.astronomy)
  • Re: finding the ring nebula
    ... Steve Paul wrote: ... matter what scope you have. ... Local light pollution from nearby outdoor lights, ... degrees at 40X with my Dob. ...
    (sci.astro.amateur)
  • Re: Yet another noob question
    ... a bigger scope will gather more light pollution too. ... > light pollution painted across the sky; ...
    (uk.sci.astronomy)
Loading