New Comet LoveJoy Discovered: Destination Unknown | |
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From Mr Lovejoy User ID: 210069 Australia 03/18/2007 05:50 PM Report Abusive Post Report Copyright Violation | > Thank you everyone :) 2007 has been a good year with two lifetime > astronomy goals finally achieved. The first goal was to see a > daylight comet and the second to discover a comet - mission > accomplished! > > I use 2 Digital SLR cameras to image the sky, and then process the > images using IRIS then examine them using the blink technique on a > computer monitor. After a very intense search effort in 2006 without > success (one near miss with 2006M4), I had wound back my efforts in > 2007 (partly because of 2006P1 and partly because of fatigue!). March > 15 was only the second time this year I had done any searches in the > morning sky. While downloading images from the camera on March 15 I > noticed a cometary object at the edge of 16 raw images centred at RA > 20h57m DEC -51d 18m made between 17h22m and 17h46m UT. Normally, the > raw unprocessed images show only the brightest objects so I was very > suprised that this could be an undiscovered comet. At first I though > it was simply a bright deep sky object, but after processing the the > intense telltale green hue and generally morphology strongly > suggested comet. Additionally, when I blinked the processed images > it showed small but clear motion. Astrometry quickly revealed no > known object in that location. At this point I was very sure I had > something :) > > The following day there was an agonising wait for cometrise (about > midnight from my location) and I notified a number of people for > followup observations. John Drummond being located further east had > the first opportunity to see the comet. Sure enough John phoned me > to confirm the existence of the comet around 11pm local time. Its > the first time I have spoken to John and what a way to introduce > yourself! Dan green contacted me late on March 16 UT to advise me > that the comet had been announced, but as per standard procedure the > comet would not be named until an orbit was calculated and it was > determined the comet was not an existing named one. > > All told I estimate I have examined about 1000 image fields since > late 2004, which would equate to about 1000 hours (it takes me 10 > minutes to actually examine an image, but there are other time > consuming tasks like setup/development/identifying suspect objects, > etc). Unfortunately I don't keep records on time taken and images > examined. > > Rob McNaught informs me that unusually cloudy weather has severly > hampered coverage of the Siding Springs survey. Additionally, I > also checked SWAN this morning and the last posted image is February > 18. Moonlight problably explained why visual observers hadn't got to > the comet first. > > Here are some of my images of the comet (including the discovery set): > > [link to www.pbase.com] > > Terry > |
Anonymous Coward User ID: 166694 Taiwan 03/18/2007 08:10 PM Report Abusive Post Report Copyright Violation | |
OR User ID: 192857 United States 03/18/2007 08:25 PM Report Abusive Post Report Copyright Violation | > Thank you everyone :) 2007 has been a good year with two lifetime Quoting: From Mr Lovejoy 210069> astronomy goals finally achieved. The first goal was to see a > daylight comet and the second to discover a comet - mission > accomplished! > > I use 2 Digital SLR cameras to image the sky, and then process the > images using IRIS then examine them using the blink technique on a > computer monitor. After a very intense search effort in 2006 without > success (one near miss with 2006M4), I had wound back my efforts in > 2007 (partly because of 2006P1 and partly because of fatigue!). March > 15 was only the second time this year I had done any searches in the > morning sky. While downloading images from the camera on March 15 I > noticed a cometary object at the edge of 16 raw images centred at RA > 20h57m DEC -51d 18m made between 17h22m and 17h46m UT. Normally, the > raw unprocessed images show only the brightest objects so I was very > suprised that this could be an undiscovered comet. At first I though > it was simply a bright deep sky object, but after processing the the > intense telltale green hue and generally morphology strongly > suggested comet. Additionally, when I blinked the processed images > it showed small but clear motion. Astrometry quickly revealed no > known object in that location. At this point I was very sure I had > something :) > > The following day there was an agonising wait for cometrise (about > midnight from my location) and I notified a number of people for > followup observations. John Drummond being located further east had > the first opportunity to see the comet. Sure enough John phoned me > to confirm the existence of the comet around 11pm local time. Its > the first time I have spoken to John and what a way to introduce > yourself! Dan green contacted me late on March 16 UT to advise me > that the comet had been announced, but as per standard procedure the > comet would not be named until an orbit was calculated and it was > determined the comet was not an existing named one. > > All told I estimate I have examined about 1000 image fields since > late 2004, which would equate to about 1000 hours (it takes me 10 > minutes to actually examine an image, but there are other time > consuming tasks like setup/development/identifying suspect objects, > etc). Unfortunately I don't keep records on time taken and images > examined. > > Rob McNaught informs me that unusually cloudy weather has severly > hampered coverage of the Siding Springs survey. Additionally, I > also checked SWAN this morning and the last posted image is February > 18. Moonlight problably explained why visual observers hadn't got to > the comet first. > > Here are some of my images of the comet (including the discovery set): > > [link to www.pbase.com] > > Terry > Cool! Keep up the great work and thanks for posting! |
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Dil User ID: 51202 Austria 03/19/2007 08:45 PM Report Abusive Post Report Copyright Violation | Quoting: Anonymous Coward 211275 WOW it gets closest to earth as possible! |
HeidiLore User ID: 201146 Canada 03/19/2007 08:45 PM Report Abusive Post Report Copyright Violation | I'm rather sick of comets, myself. Visit my website... [link to heidi-lore.tripod.com] Need to email? [email protected] Visit the GLP video site and click on groups: [link to youtube.com] _____________ The only difference between the Republican and Democratic parties is the velocities with which their knees hit the floor when corporations knock on their door. That's the only difference. I believe I can see the future, 'cause I repeat the same routine. I think I used to have a purpose, but then again, it might have been a dream |
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Anonymous Coward User ID: 137330 United States 03/19/2007 08:50 PM Report Abusive Post Report Copyright Violation | what's going on apr 25-26. it looks right on top of earth eventhough it says 0.445 au? [link to neo.jpl.nasa.gov] |
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Dil User ID: 51202 Austria 03/19/2007 09:17 PM Report Abusive Post Report Copyright Violation | OK the view with which the simulation is set when you go there showed a collision. It's true that it will miss earth by about the distance of the orbit between Mars and arth. Tho I would say that's fucking close and this time earth will run through its tail obviously. |