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Old 11-10-2018, 07:07 AM
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mental4astro (Alexander)
kids+wife+scopes=happyman

mental4astro is offline
 
Join Date: Jun 2008
Location: sydney, australia
Posts: 4,979
Jen, changing the stickies situation is one of the many things on the Administrator's list of "things to do"...

Ok, I've been asked to supply a few more challenges, so here goes

CHALLENGE NO. 3

Martian Clouds!
With the Martian global dust storm finally showing signs of breaking, it gives us an opportunity to chase down not just the polar caps (YES! Snow on another planet! And you can see it from here on Earth) which is easy, but the real teaser that is Martian clouds!

Steady seeing is a must. And another thing that helps is an #80A colour filter, or a #8 filter as it helps to tone down the glare of the red surface and allows the white clouds to show up more easily. But be patient! These clouds are not as dense as our Terrestrial ones. They are also best seen close to the limb of the disk (outer edge) as this is where they will be most dense in line-of-sight.

NOTE ABOUT COLOUR FILTERS:

Using colour filters with the planets will not necessarily make those features you seek stand out more obviously or how you expect them! Many features are very difficult to spot, and may appear in a way opposite to how you might expect. So be patient, understand what you are trying to see and give yourself time to interpret the image you are seeing.

Alex.
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