100 replies to this topic

[Astroman007]

SHOCKWAVES!

 

008_wavelets_60%.jpg

Jupiter 2019-08-08 11:10 UTC

 

BQ

Where, exactly?

 

I see nothing at the area of impact.

[BQ Octantis]

Here's an earlier capture in the session:

 

2019-07-08 10:47 UTC

 

I thought those looked a little low for festoons when I saw them through the eyepiece! You'll notice they're not present in Tulloch's animation from the 5th.

 

I'll do a filmstrip tomorrow.

 

BQ

Edited by BQ Octantis, 08 August 2019 - 08:43 AM.

[Padma Boy]

I checked the image of Jupiter after 10 hours and found no obvious impact spots.

 

 

[BQ Octantis]

Where, exactly?

 

I see nothing at the area of impact.

To the west of the GRS.

[BQ Octantis]

Hmmm…looking at Ethan's shot during the event, it looks like those snake-like features west of the GRS were already heading north…

Edited by BQ Octantis, 08 August 2019 - 08:43 AM.

[Marc Delcroix]

You lucky guy! I did a lot of amateur/pro presentations on the topic, without catching a single one

 

> There is one part of this experience makes this all extra bizarre to me. While setting up the C8 last night, I was running a hypothetical scenario in my head about presenting planetary imaging as scientific to an audience. While I'm not one for presenting, I find it fun to occasionally think about. One of the topics that came to mind was Jupiter impacts, and to catch it happening no more than ten minutes later seems unreal to me.

Edited by Marc Delcroix, 08 August 2019 - 09:48 AM.

[einarin]

You might be right Joe.

Now if only Hubble could do an imaging run...

[Sauveur]

a little reading for Ethan

 

 

https://www.cieletes...ect-sur-jupiter

 

 

good sky

[Ethan Chappel]

Since you all are trying to compare, here's the same image without the flash on the RGB, and an extra sharpened version. I'll let you all do the analyzing since I'm already overextended today!

 

 

[Joe1950]

What would be good for comparison sake in the impact region, Eathan,  is a processed image well before the impact time as available. That way, the area of the impact and possible dark spot will be away from the limb area and can be compared to the same spot after Jove was hit and rotated around.

 

When you unwind a little and get a chance. 

Edited by Joe1950, 08 August 2019 - 12:31 PM.

[KiwiRay]

Joe:

 

Some images from August 6 are here:

 

http://alpo-j.asahik...19/j190806z.htm

 

In particular, check out Zac Pujic's image near the bottom.  That dark spot you highlight in Padma's image doesn't appear to be there.  It's hard to tell, though - the impact occurred in an active region of already dark clouds, so picking out a dark scar (if that's what is expected) might be quite difficult.  Perhaps the HST can do it.

Edited by KiwiRay, 08 August 2019 - 03:10 PM.

[Joe1950]

Thanks, KiwRay. It does appear not to be there, but it is difficult to say for sure. 

 

I think the HST would definitively show a remnant scar with enough resolution to differentiate it from normal features.

 

I often wondered why the scars left from Shoemaker-Levy we’re so dark, and if it is even known why. Or if all impacts resulted in dark scars. 

 

Very interesting. I hope it’s officially confirmed. 

Thanks again!

joe

[CPellier]

None of the details visible look similar to the 1994 and 2009 impacts. They were extremely dark. At the latitude of the impact, there is a lot of usual SEBs jetstream turbulence that is fast evolving.

The flash does not look to be more important than the previous ones observed over the last 10 years and none have left any detectable trace...

[Lunatiki]

I'd think it would be much darker. There are many areas the same color.

[Joe1950]

They are all important. And if all of the lesser ones left no detectable trace why should this remnant be much darker?  

[Sleep Deprived]

Great capture!  It has hit the big time:

 

https://www.skyandte...act-on-jupiter/

[DMach]

I rushed out there this evening to grab some frames before the ROI rotated out of view.

 

Far from ideal conditions unfortunately as the sun was still setting, my OTA was not yet fully equilibrated and it was quite windy. So I'm tempering my expectations ... fingers crossed though!

Here's what I was able to manage given the limitations above:

 

 

Nothing's jumping out at me ... but then I'm not sure exactly where to look. Is there a method for highlighting a ROI in WJ?

[Tulloch]

 

Nothing's jumping out at me ... but then I'm not sure exactly where to look. Is there a method for highlighting a ROI in WJ?

Darryl posted a WJ image in an earlier post. 

[KiwiRay]

What about the gray smears just left of centre?:

 

The clouds here are moving west relative to the GRS, so perhaps any impact would be smeared to the west like this?

Edited by KiwiRay, 08 August 2019 - 08:20 PM.

[Lunatiki]

2009 impact

 

 

Attached Thumbnails

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Edited by Lunatiki, 08 August 2019 - 08:47 PM.

[Lunatiki]

.

 

 

Edited by Lunatiki, 08 August 2019 - 08:41 PM.

[Joe1950]

Joel, you think an impact would have a dark scar left behind. Do you think the flash was not an impact? I’m misunderstanding. 

[Lunatiki]

Oh I have no doubt there was an impact in the atmosphere. Great catch! I just don't think it was big enough to leave a scar.

[Joe1950]

Ok, Joel. My misunderstanding! Thanks for the clarification 

[Nicole Sharp]

Alright, got you now. Your original post made no sense to me without this extra clarification.

I think that the difficulty in getting confirmation here shows the need for a coordinated Jovian Impact Monitoring Program, much like NASA has with it's Lunar Impact Monitoring Program.  I would be very interested in trying both if I could, and it would be good if there was a better way to coordinate observations between both amateur and professional astronomers and more quickly confirm reports of impacts.

Edited by Nicole Sharp, 08 August 2019 - 10:39 PM.