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I observed an explosion on Jupiter this morning!

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#1 AstroDan2015

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Posted 10 September 2012 - 11:23 AM

Hi guys,

This morning (9/10/2012) at 11:35:30 UT, I observed a bright white two second long explosion just inside Jupiter's eastern limb, located at about Longitude 1 = 335, and Latitude = + 12 degrees north, inside the southern edge of the NEB. This flash appeared to be about 100 miles in diameter. I used my Meade 12" LX200 GPS telescope and a binoviewer working at 400X for the observation, seeing was very good at the time. I was thinking about imaging Jupiter this morning but decided to observe it instead, had I been imaging I'm sure I would have missed it between adjusting webcam settings and focusing each avi. We'll have to wait and see if a dark spot developes inside the southern regions of the NEB over the next day or two. Good luck imaging this. My best guess is that it was a small undetected comet that is now history, hopefully it will sign its name on Jupiter's cloud tops.

Best Regards and Clear Skies, Dan Petersen

#2 WayneJ

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Posted 10 September 2012 - 12:32 PM

Hi Dan,

You should write an observation report and send it to John Rogers at the BAA. If you can, show a sketch of the planet and where you observed the flash, along with accurate time and location data. John can alert other imagers who might have data from that time to check their raw data for confirmation.

http://www.britastro.org/jupiter/

If it was simply a small comet, it's unlikely that Jupiter will show any dents and scratches. The "transient" that Chris Go and Bird Wesley imaged back in 2010 didn't show any impact marks.

Regards,

Wayne

#3 shawnhar

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Posted 10 September 2012 - 01:44 PM

Missed it by 4:00!!!! Dangit, I switched over to the moon before I quit imaging Jup this morning.

#4 AstroDan2015

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Posted 10 September 2012 - 02:29 PM

Hi Wayne and Shawn:

Thanks for your replies.

Shawn, I wish you had captured it too, just one more avi and you probably would have.

It was an amazing sight to behold this pure white fireball erupting from Jupiter's NEB clouds. I observed the planet an hour and a half later in daylight hoping to detect a small dark spot near Jupiter's CM but could not see one. I will observe Jupiter tomorrow morning 2.5 hours earlier when this longitude of 335 (system 1) is near the central meridian once again. I will have my fingers crossed and hope there is an observable mark, if there is one I will be doing some high resolution imaging this time.

Clear Skies, Dan

#5 PiotrM

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Posted 10 September 2012 - 02:37 PM

It would have to be very very big object to leave an amateur-resolvable mark. Last two caught by amateurs (the Japanese one and Anthony one) did not leave such easy visible spots.

#6 Bird

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Posted 10 September 2012 - 05:17 PM

What great news this is to find when I woke up this morning! That longitude will be visible here tomorrow morning so (fog permitting) I'll have a go at imaging it and see if anything is visible. I'm sure everyone else who can see that longitude will be doing the same.

1.5-2s sounds very similar to the two events in 2010 which didn't reach the cloud tops, but we can hope that this one went a bit deeper, that would be fabulous.

Nicely caught Dan!

cheers, Bird

#7 Mike Phillips

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Posted 10 September 2012 - 05:53 PM

what a wonderful sight. I believe the east coast USA gets that same view again Tuesday AM!?

#8 GaryJCarter

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Posted 10 September 2012 - 08:13 PM

It appears George Hall caught this on video....see http://georgeastro.w...piterimpact.jpg

#9 James W.

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Posted 10 September 2012 - 08:24 PM

Mike - 4:53am EST, CM1 355 will be at the center. And to believe it's actually clear!!!!

#10 Sunspot

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Posted 10 September 2012 - 08:46 PM

James and others,

Go for it and I hope there is something to see, but even if not it's still exciting to try.

Paul

#11 James W.

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Posted 10 September 2012 - 09:22 PM

You never know! That's the fun part of it! :)

#12 geminijk

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Posted 10 September 2012 - 10:45 PM

Awesome!

John

#13 Kecktastic

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Posted 10 September 2012 - 11:49 PM

Awesome news Dan, down here in OZ we get an excellent view of that CM1 tomorrow morning, the seeing is predicted to be crook and Jup will only be at 32 degrees alt but at least it looks like it will be clear.

Cheers!!!!!!!
Trevor

#14 zAmbonii

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Posted 11 September 2012 - 12:15 AM

Saw this post earlier, but was busy setting up my deep space setup to see that it was confirmed and that the area will be visible in a few hours. I'm going to cut short my deep space stuff and try to get Jupiter when the area comes back around. Seeing is pretty decent outside so who knows :). I've got about another hour before Jupiter clears the trees though....I have the C8 out cooling in preparation :).

Will post what I see if I do see anything.

Kinda exciting! :)

I wonder how many people have taken images of the area yesterday because there should have been a several hours post impact before it rotated out of view. Would be interesting to see.

#15 zAmbonii

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Posted 11 September 2012 - 03:10 AM

Seeing is kind little below average, but so far, I can't see anything definitive. Nothing I can say that is a dark spot or a light spot so far. I'll post some images later on. It may take someone with better seeing and bigger scope to get more detail of the area.

#16 Freddy WILLEMS

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Posted 11 September 2012 - 03:44 AM

Go for it guys ....

#17 bunyon

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Posted 11 September 2012 - 04:17 AM

Seeing is a bit iffy but nothing obvious showing up in the live feed. Of course, it would have to be huge to show up in my live feed.

#18 zAmbonii

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Posted 11 September 2012 - 05:00 AM

OK...Im a slight bit skeptical on this, but I *might* be seeing something really small. Someone else with better seeing and bigger scope might get a better look. I'll post an animation to show ya in a bit.

#19 bunyon

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Posted 11 September 2012 - 05:32 AM

I have a bigger scope. But probably not better seeing.

Here is a shot at 0955 UT. It isn't very good and I have no comparison to make with it. There are some marks around the equator, but I don't know if they were there previously or not.

CN giving me fits trying to upload. I'm going to give it a miss as it really isn't that great an image.

#20 bunyon

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Posted 11 September 2012 - 05:41 AM

I have a bigger scope. But probably not better seeing.

Here is a shot at 0955 UT. It isn't very good and I have no comparison to make with it. There are some marks around the equator, but I don't know if they were there previously or not.

#21 zAmbonii

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Posted 11 September 2012 - 06:01 AM

Ok here goes it. This is a stretch, but I am kinda itching to find something. The meridian position seems to be about right, but I think it is a bit South of where an impact should but....but who knows. I have plenty of other .avis, but I need to clear space on my hard drive and transfer them from my laptop so it may not be till this afternoon before I get to them

Here is a link to an animation with other images.

Also included the fireball image scaled and rotated to try and match my captures.

Here is my stretch:
Posted Image
Possible impact scar on Jupiter? 9/11/12 by zAmb0ni, on Flickr

#22 Jerre

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Posted 11 September 2012 - 06:32 AM

Perhaps analysing the images in JUPOS would give a clue ;)

#23 Darren Drake

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Posted 11 September 2012 - 06:39 AM

An impact feature would likely be jet black and unmistakable. Doesn't look promising at this point but but's still fun looking. I didn't see anything interesting through my C8 in very good seeing.

#24 Mike Phillips

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Posted 11 September 2012 - 06:49 AM

It appears George Hall caught this on video....see http://georgeastro.w...piterimpact.jpg


Awesome I saw no marks this am in processed final

#25 bunyon

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Posted 11 September 2012 - 07:29 AM

You'd have to have something clear that wasn't there yesterday, before the impact. I suspect lots of little niggly things hanging off the festoons between EBs could look like an impact under the right (or, rather, wrong) conditions.






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