Keith g
sage
Reged: 02/13/05
Posts: 336
Loc: Waterford/Cavan Ireland
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This just in all, Coutesy and Credit of Anthony Wesley, Murrumbateman, Australia at 1554UT 19 July today
http://www.acquerra.com.au/astro/ObsReport/jupiter-impact.html
Keith..
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Achernar
Postmaster
Reged: 02/25/06
Posts: 5013
Loc: Mobile, Alabama, USA
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If this is really a scar left from an impact from space, it means that Jupiter is really and truly the Solar System's vacuum cleaner. If the weather would only clear down here, I'll be willing to stay up late to see if this scar appears tonight in the telescope. I remember the huge bruises the fragments of Comet ShoemakerLevy-9 left behind when they hit Jupiter back in 1994. They were impossible to miss in even the smallest of telescopes.
Taras
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15-inch F/4.5 Dob under construction
10-inch F/4.5 Discovery Dob
6-inch F/8 Homebuilt Dob
4 1/4-inch F/4 Homebuilt reflector
A whole bunch of eyepieces, filters and other accessories....
Two curious cats
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billyo
member
Reged: 07/03/04
Posts: 72
Loc: TEXAS
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Congratulations Anthony!
What this means is that your careful analysis and watchful eye have discovered something that no one predicted or was not publicized.
No matter what the explanation is you have done some good science there.
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brianb11213
Carpal Tunnel
Reged: 02/25/09
Posts: 2072
Loc: 55.215N 6.554W
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Curses  The weather is now guaranteed to be cloudy until the event is no longer observable 
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Dean Norris
sage
Reged: 11/05/08
Posts: 423
Loc: Santa Cruz, Ca
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I was observing Jupiter this morning at 2:30 am PDST (7-19-09) and noticed a dark marking as well. But it was below 2 white oval storms in the southern polar region not above them as it is in the image. I don't know if this related to what you imaged but I thought I would mentioned this. Dean
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1971 10" Cave Newtonian F/6
MoonLite CR Focuser Telrad Finder 8x50 finder
TV 40mm, 32, 20, 7.4, Meade 6mm, UO 5mm, Meade 2x Barlow
7x50 Binoculars
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Keith g
sage
Reged: 02/13/05
Posts: 336
Loc: Waterford/Cavan Ireland
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Thanks Dean, all this is useful right now as the story unfolds, we have until aproximately 3.5hours now untill transit time here in Ireland and europe, so we will see if it is still there...
Keith..
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Matthew Ota
Pooh-Bah
Reged: 04/30/05
Posts: 1081
Loc: New England
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I wonder if CBAT and ALPO have been alerted?
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Matthew Ota
Meade LX250GPS 10 inch SCT (Frankenscope)
Orion ED 80
ETX-90 OTA
Coronado Helios 1 H-alpha
TheSky 6 Pro
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TwinCitySteve
member
Reged: 01/01/08
Posts: 29
Loc: Chicago, IL
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I'm no Jupiter expert, but doesn't the planet churn up dark holes in its atmosphere fairly regularly?
Spaceweather.com is calling for amateur astronomers around the world to "train their telescopes on Jupiter tonight to monitor the progress of this possible impact event."
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Special Ed
Post Laureate
Reged: 05/18/03
Posts: 4272
Loc: Greenbrier Co., WV 38N, 80W
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Quote:
I'm no Jupiter expert, but doesn't the planet churn up dark holes in its atmosphere fairly regularly?
Dark spots (called "condensations") are seen fairly often, but black spots like this are unusual.
More info here in the Solar System Imaging forum.
BTW, CM III will be at ~300° (the location of the black spot on Bird's image) at 0740 UT (3:40 AM EDT) for US east coast observers on Tuesday, July 21st. This is about the time that Jupiter transits the meridian. Clear skies!
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Michael Rosolina
8" f/10 Orange Tube SCT
4.25" f/4.2 Astroscan Reflector
SVP 3.6" f/13.6 CA Reflector
40mm PST f/10
APM Germany HD 15x70 binoculars
Canon 12x36 IS II binoculars
Mark I Eyeball
My CN Gallery
Edited by Special Ed (07/19/09 10:56 PM)
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Hauk
newbie
Reged: 06/29/09
Posts: 3
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Long time lurker, first time poster.
I'm in Ireland too. I'll keep an eye on it if the weather stays clear(which it hasn't).
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Philz
member
Reged: 09/14/06
Posts: 15
Loc: Mount Gambier, Australia
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I was observing Jupiter on the 19th and noticed that dark spot, thought it was a shadow from one of the moons, even watched it for a while, did not even think to check transits, should have as I had a great night for imaging here and I wasn't imaging. Well done Anthony and good on you for being switched on
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dave brock
super member
Reged: 06/06/08
Posts: 160
Loc: Hamilton, New Zealand
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It's visible right now (11.22 UT)in my 20". I'm in New Zealand.
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20" homebuilt truss dob
6" watson refractor
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mconnelley
sage
Reged: 03/14/06
Posts: 271
Loc: Fremont, CA
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Hello:
I did not see the spot with my 144mm refractor in mediocre seeing. I was just using the NASA IRTF (for a previously scheduled observation), and it's a very prominent spot in the IR, not like anything I've ever seen on Jupiter. This page http://jupiter.samba.org/jupiter-impact.html mentions confirmation that it is an impact.
Cheers
Mike
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SabiaJD
professor emeritus
Reged: 02/20/05
Posts: 510
Loc: Clarks Summit, PA
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Just arrived back from a family weekend when I read about activity on Jupiter. Updated my Observing blog with times the feature will be visible.
http://lackawannaastronomicalsociety.org/?page_id=203
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John D. Sabia
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Ptarmigan
Carpal Tunnel
Reged: 09/23/04
Posts: 2335
Loc: Arctic
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Wow. I didn't know an impact happened on Jupiter. I remember Comet Shoemaker-Levy 9 crashed into Jupiter in 1994. I wonder if also Saturn is subjected to comet crashes like Jupiter.
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Ptarmigans=Cute and Cuddly
Meade Starfinder 8
Nikon 10x50
Rebel XT
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brianb11213
Carpal Tunnel
Reged: 02/25/09
Posts: 2072
Loc: 55.215N 6.554W
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Quote:
I wonder if also Saturn is subjected to comet crashes like Jupiter.
Of course it is ... but the frequency of the events will be much lower because Saturn's gravity isn't as strong. The Earth gets hit, too, just not very often.
The dynamic calculations around the time of SL9 suggested a 2 Km diameter object should impact Jupiter about once per century.
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BillFerris
Carpal Tunnel
Reged: 07/17/04
Posts: 2907
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This has been the hot topic of discussion on the Minor Planet Mailing List (MPML). Franck Marchis, a planetary astronomer with the SETI Institute, has told the group that one of the Keck telescopes has been used to image the new feature in the near-infrared. This observation detected high emissions in the CH4 band, which is apparently a signature for an impact explosion in the upper atmosphere.
Interesting stuff,
Bill in Flag
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Grand Canyon Adventure
Lowering the Threshold
18" Obsession
4.5" Meade 4500
10x50 Swift Audubon
Cosmic Voyage
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Clive Gibbons
Mostly Harmless
Reged: 05/26/05
Posts: 13420
Loc: Oort Cloud
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Interesting coincidence that this "mystery object" hit Jupiter right around the same time in July, as Comet SL-9 did back in 1994.
Just 15 years late. 
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A few telescopes of dubious value.
Understanding wife, two curious cats and one sadly departed.
"Semper ubi sub ubi"
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geminijk
member
Reged: 04/03/08
Posts: 87
Loc: TN
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Anyone know of a site to use that has the transit times for this "dark spot"?
Vry much appreciated!
John
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Celestron Ultima 8 PEC w/GSO 9x50 RACI Finder
6" Meade ETX-LS
6" Orion Intelliscope Dob
http://twitter.com/geminijk
http://amateurastrotech.wordpress.com
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Special Ed
Post Laureate
Reged: 05/18/03
Posts: 4272
Loc: Greenbrier Co., WV 38N, 80W
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Quote:
Anyone know of a site to use that has the transit times for this "dark spot"?
Vry much appreciated!
Yes, this thread. Just scroll up to John Sabia's post and click on the link.
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Michael Rosolina
8" f/10 Orange Tube SCT
4.25" f/4.2 Astroscan Reflector
SVP 3.6" f/13.6 CA Reflector
40mm PST f/10
APM Germany HD 15x70 binoculars
Canon 12x36 IS II binoculars
Mark I Eyeball
My CN Gallery
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