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Mars July 5 and 6, C9.25

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#1 KiwiRay

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Posted 06 July 2020 - 05:07 PM

It's been a cloudy July so far in Seattle, with overcast mornings more typical of our "June gloom".  However, I did catch a couple of breaks in the cloud the last two days, with a nice morning yesterday, and a brief cloud hole over Mars this morning.  Seeing might have been a little better this morning as the resulting image is slightly sharper.  I am curious about what looks like a brightening north of the polar cap, a little left of centre in the second image.  It could just be a combination of the better seeing and that region being more brightly lit by the Sun this morning, but I'm interested to see if any other images show it too.

 

July 5:

 

2020-07-05-1144_6b.png

 

July 6:

 

2020-07-06-1132_7rs.png

 

Celestron Nexstar Evolution 9.25 scope with 2x Barlow and ADC.  ASI224MC camera.


Edited by KiwiRay, 06 July 2020 - 06:05 PM.

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#2 KiwiRay

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Posted 06 July 2020 - 06:40 PM

I'm going to answer my own question regarding the brightening region.  Pete's image from July 3 shows almost the same view of Mars, but doesn't appear to show the same brighter areas in that region north of the SPC.  Could this be a new dust outbreak, or the further development of an existing storm?  I admit I haven't been following discussion of dust storms very closely lately.

 

Pete's image:

 

https://www.cloudyni...tach_id=1531340

 

Edit: Likewise, Brad's image from July 4:

 

https://www.cloudyni...-1593968270.png


Edited by KiwiRay, 06 July 2020 - 06:46 PM.


#3 Kokatha man

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Posted 06 July 2020 - 07:11 PM

Very nice Ray! waytogo.gif waytogo.gif waytogo.gif


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#4 dhammy

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Posted 06 July 2020 - 08:59 PM

I've one from the 5th but it's just before that area rotated into view. I've not been following developments that closely but it looks like a definite increase in brightness in your second image that would be a dust storm.
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#5 sunnyday

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Posted 06 July 2020 - 09:03 PM

the details are very nice , thanks .



#6 KiwiRay

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Posted 06 July 2020 - 09:40 PM

I've one from the 5th but it's just before that area rotated into view. I've not been following developments that closely but it looks like a definite increase in brightness in your second image that would be a dust storm.

Thanks, David.  After comparing with Pete and Brad's images, I'm now convinced there's new dust activity in that region that developed over the last day or two.



#7 Sunspot

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Posted 06 July 2020 - 10:12 PM

Here is a rough processed IR image of the area from July 5 about 1144UT. I see your area nicely.

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  • 2020-07-05-1144_0-PM-742_grad5_ap8.jpg

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#8 KiwiRay

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Posted 06 July 2020 - 10:20 PM

Here is a rough processed IR image of the area from July 5 about 1144UT. I see your area nicely.

Thanks, Paul!  1144 UT was the exact midpoint of my image's capture time on that day.  Did you get one this morning too?



#9 Lacaille

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Posted 07 July 2020 - 07:05 AM

Lovely images Ray. There seem to be odd light patches developing here and there at the moment in both hemispheres. This does look like a possible dust storm.
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#10 Sunspot

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Posted 07 July 2020 - 08:51 AM

I got images for both July 6 and 7, the July 6 image barely showed anything, and the July 7 image was clean, no patch. Nice catch!


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#11 DMach

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Posted 09 July 2020 - 10:32 AM

Excellent results Ray!



#12 PXR-5

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Posted 09 July 2020 - 07:53 PM

Awesome 👍
Nice capture
Thanks for posting


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