7 replies to this topic

[Orion 3]

Mars with possible Dust Storm in Argyre. I saw some other CN posted images from that date that some believe that could be a dust cloud in the southern region. 

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[gstrumol]

Looks like a dust storm to me!

 

Gary

[wizbang396]

YES, and it's a VERY GOOD IMAGE

[Jeff B1]

Well, it appears more like a regular cloud if my eyes are okay and ALPO-Japan images are correct.  Here is a multi-filter image indicating bright in blue cloud and dull in red:  http://alpo-j.sakura...3/m230204a1.jpg  

[Lacaille]

I agree, it is much more likely to be a cloud, from the evidence of that ALPO image, and given that we are now well outside the dust storm season.  It is likely that the clouds are gathering in the South as the southern autumn progresses.

Edited by Lacaille, 06 February 2023 - 07:54 PM.

[Orion 3]

So perhaps a regular cloud formation as the seasons change, I still find that pretty cool. I'm happy with the image and the fact I could get some detail. I followed advice from CN members: Lacaille (ease up on the sharpening) and RedLionNJ (try using a crayford focuser). I picked up a crayford 2 speed focuser and set it up with a Rigel Systems bracket and I feel I'm getting better results.

[Lacaille]

It’s a fine image, and isn’t it wonderful that you are monitoring weather on another planet from your backyard? (As my dear wife often reminds me)..

 

Mark

[Jeff B1]

I realize this chapter is a bit dated, but one may get started with the meteorology of Mars reading it. https://alpo-astrono...ing_Mars_5.html

 

Argyre is an area that trends with both water ice clouds and dust clouds since it is a large depression in a latitude that is favorable for cloud formation.  One can read: https://alpo-astrono...ing_Mars_6.html    to study dust activity and compare the images and dialog with the previous chapter.   Understand that normally dust clouds show up bright in red light and water-ice clouds are better seen in blue light.    And yes, dusty periods on Mars do not usually occur in northern spring (southern autumn).  Do not ever dismiss how Mars can deceive us!