Re: faliure so far trying to see mars - Mars2.jpg (0/1)

On Fri, 18 Nov 2005 13:54:10 +0000, Pete Lawrence
<pete.lawrence@xxxxxxxxxxxx> wrote:

>On Fri, 18 Nov 2005 13:37:23 +0000, Clive <nospam@xxxxxxxxxxxxxx>
>wrote:
>
>>>You're view is probably what you should be seeing. What sort of
>>>telescope are you using? If it's an SCT or a reflector, is it
>>>collimated? Have you allowed enough time for the scope to cool. A
>>>couple of hours outside in the dark will normally sort that issue out
>>>but even then it can vary depending on the type of scope and the
>>>temperature it's been brought out from.
>>>
>>>What time did you make your attempt? If it was early, the light from
>>>Mars would have been coming through a thick layer of wobbly atmosphere
>>>- made even wose if you are viewing it above a heat source.
>>>
>>>Were your optics dew/frost(!) free? If not, a 12V hairdryer will sort
>>>them out on the beach.
>>>
>>>Visually, you really need a medium to large scope to get much out of
>>>Mars. A small scope will show some surface markings and perhaps a
>>>polar cap or two (the North Polar Hood should be visible but the South
>>>Polar Cap is currently tiny). Images may give expectations of seeing
>>>things that you just won't pick up visually. I showed someone one of
>>>my webcam AVIs that lead to a reasonable finished image recently. They
>>>were gobsmacked that processing techniques have advanced so much that
>>>they can pull such detail ouf from that wobbly little disk.
>>
>>
>>Im using an 8inch SCT, i checked the collimation and left it outside
>>for a few hrs before i tried, i will have another go tonight
>
>If you can, try upping the magnification a bit too by using a Barlow.
>For visual work, coloured filters (e.g. take a look at the Orion
>Optics site, http://www.orionoptics.co.uk/) can help to bring out
>subtle detail. Carrying out successful visual planetary observations
>is also about having patience and experience. If your eye isn't
>trained to 'see' the detail then you'll have to train it. A trained
>observer will be able to see detail that will astound an inexperienced
>one.
>
>This includes being able to watch for those elusive moments when the
>atmosphere seems to stop moving altogether. They don't happen very
>often (especially in the UK) but they do happen.


well i got a result tonight... im happy, its rubbish by your standards
but at least im getting something now :)
.

Relevant Pages

  • Re: faliure so far trying to see mars
    ... If it's an SCT or a reflector, ... Have you allowed enough time for the scope to cool. ... >>>couple of hours outside in the dark will normally sort that issue out ... >>>polar cap or two (the North Polar Hood should be visible but the South ...
    (uk.sci.astronomy)
  • Re: faliure so far trying to see mars
    ... If it's an SCT or a reflector, ... Have you allowed enough time for the scope to cool. ... >>couple of hours outside in the dark will normally sort that issue out ... i checked the collimation and left it outside ...
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