Comet Lovejoy survives perihelion! | |
Anonymous Coward User ID: 1356782 United States 12/14/2011 12:18 PM Report Abusive Post Report Copyright Violation | |
RTS REDUX (OP) User ID: 1388392 United States 12/14/2011 12:29 PM Report Abusive Post Report Copyright Violation | 1500UT SG update [...]this is, without any doubt, the brightest sungrazing comet that SOHO has ever seen [...]If Comet Lovejoy gets as bright as mag -4 or -5, there is a tiny but non-zero chance that it could be visible in the sky next to the Sun by simply blocking the Sun out behind a tall building, for example. (Important: Do NOT point a telescope or binoculars at, or near, the Sun! It can and will badly damage your eyesight.) It will be reaching perihelion right around sunset time for people in the US East, Central, Mountain, and Pacific time zones, so if you have one of those nice sunsets where you can actually look right at the Sun, be on the watch for the comet on the left of the Sun (for northern hemisphere observers). [link to sungrazer.nrl.navy.mil] |
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Anonymous Coward User ID: 7109397 United States 12/14/2011 01:26 PM Report Abusive Post Report Copyright Violation | |
Anonymous Coward User ID: 1297814 Germany 12/14/2011 01:38 PM Report Abusive Post Report Copyright Violation | Latest LASCO C3 Movie CloseUP Helioviewer: [link to helioviewer.org] |
Anonymous Coward User ID: 1297814 Germany 12/14/2011 01:47 PM Report Abusive Post Report Copyright Violation | 1830UT: Here's an updated image of Comet Lovejoy in SECCHI HI-1B (click for larger). Notice the increasing tail dynamics due to the solar wind flowing over the comet. And now I have time for another data dump! I'm not going to post a link to the LASCO data as that is already easily available in a couple of locations. Here is some more SECCHI data though, which is still harder to find. I'm also going to throw in some processed files as I know some folks aren't used to using DS9 and/or FITS images, and may not have the time or software to process their own. So here's what I have. You would be well-advised to right-click these links to save the files to your computer... ReadMore: [link to sungrazer.nrl.navy.mil] |
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Anonymous Coward User ID: 1356782 United States 12/14/2011 03:01 PM Report Abusive Post Report Copyright Violation | 1500UT SG update Quoting: RTS REDUX [...]this is, without any doubt, the brightest sungrazing comet that SOHO has ever seen [...]If Comet Lovejoy gets as bright as mag -4 or -5, there is a tiny but non-zero chance that it could be visible in the sky next to the Sun by simply blocking the Sun out behind a tall building, for example. (Important: Do NOT point a telescope or binoculars at, or near, the Sun! It can and will badly damage your eyesight.) It will be reaching perihelion right around sunset time for people in the US East, Central, Mountain, and Pacific time zones, so if you have one of those nice sunsets where you can actually look right at the Sun, be on the watch for the comet on the left of the Sun (for northern hemisphere observers). [link to sungrazer.nrl.navy.mil] The latest updates show another companion comet and Lovejoy forming its own saturation line |
RTS REDUX (OP) User ID: 1388392 United States 12/14/2011 03:03 PM Report Abusive Post Report Copyright Violation | 1500UT SG update Quoting: RTS REDUX [...]this is, without any doubt, the brightest sungrazing comet that SOHO has ever seen [...]If Comet Lovejoy gets as bright as mag -4 or -5, there is a tiny but non-zero chance that it could be visible in the sky next to the Sun by simply blocking the Sun out behind a tall building, for example. (Important: Do NOT point a telescope or binoculars at, or near, the Sun! It can and will badly damage your eyesight.) It will be reaching perihelion right around sunset time for people in the US East, Central, Mountain, and Pacific time zones, so if you have one of those nice sunsets where you can actually look right at the Sun, be on the watch for the comet on the left of the Sun (for northern hemisphere observers). [link to sungrazer.nrl.navy.mil] The latest updates show another companion comet and Lovejoy forming its own saturation line yea I saw that..I enlarged that pic and am waiting on mod approval |
Anti-GLP Effect User ID: 6569151 Philippines 12/14/2011 03:07 PM Report Abusive Post Report Copyright Violation | 1500UT SG update Quoting: RTS REDUX [...]this is, without any doubt, the brightest sungrazing comet that SOHO has ever seen [...]If Comet Lovejoy gets as bright as mag -4 or -5, there is a tiny but non-zero chance that it could be visible in the sky next to the Sun by simply blocking the Sun out behind a tall building, for example. (Important: Do NOT point a telescope or binoculars at, or near, the Sun! It can and will badly damage your eyesight.) It will be reaching perihelion right around sunset time for people in the US East, Central, Mountain, and Pacific time zones, so if you have one of those nice sunsets where you can actually look right at the Sun, be on the watch for the comet on the left of the Sun (for northern hemisphere observers). [link to sungrazer.nrl.navy.mil] The latest updates show another companion comet and Lovejoy forming its own saturation line So I have written it, so it shall be done! [link to www.youtube.com (secure)] |
RTS REDUX (OP) User ID: 1388392 United States 12/14/2011 03:23 PM Report Abusive Post Report Copyright Violation | 1500UT SG update Quoting: RTS REDUX [...]this is, without any doubt, the brightest sungrazing comet that SOHO has ever seen [...]If Comet Lovejoy gets as bright as mag -4 or -5, there is a tiny but non-zero chance that it could be visible in the sky next to the Sun by simply blocking the Sun out behind a tall building, for example. (Important: Do NOT point a telescope or binoculars at, or near, the Sun! It can and will badly damage your eyesight.) It will be reaching perihelion right around sunset time for people in the US East, Central, Mountain, and Pacific time zones, so if you have one of those nice sunsets where you can actually look right at the Sun, be on the watch for the comet on the left of the Sun (for northern hemisphere observers). [link to sungrazer.nrl.navy.mil] The latest updates show another companion comet and Lovejoy forming its own saturation line yea I saw that..I enlarged that pic and am waiting on mod approval here it is for reference..I couldn't see it at first just by looking at the gif |
RTS REDUX (OP) User ID: 1388392 United States 12/14/2011 04:09 PM Report Abusive Post Report Copyright Violation | |
Anonymous Coward User ID: 1297814 Germany 12/14/2011 04:24 PM Report Abusive Post Report Copyright Violation | :latestlascoc3163: [link to www.youtube.com] [link to www.youtube.com] Latest StereoBehind HI1 Movie: [link to stereo.gsfc.nasa.gov] Latest Stereo Ahead HI1 Movie: [link to stereo.gsfc.nasa.gov] Latest LASCO C3 Helioviewer: [link to helioviewer.org] Sungrazing Comets: 1900UT: This is too cute: Comet Lovejoy has a friend! Look in the upper-half of the animation opposite, starting at center and moving diagonally up and to the left, perfectly in step with Lovejoy... It's another Kreutz-group comet! (if you can't see it, here's a hint).. So what is this new comet called? Is it another "Comet Lovejoy"? Sadly not. It looks to me like it was actually spotted in the LASCO C3 images by seasoned comet hunter Zhijian Xu at Dec 14 2011 11:48:48. So will it be Comet Xu?? No again.... 1950UT: Friend of mine, and expert SOHO comet researcher, Dr. Matthew Knight (Lowell Observatory/JHU-APL) has just sent me some of his preliminary photometry calculations for Comet Lovejoy in the LASCO C3 images.... [link to sungrazer.nrl.navy.mil] |
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Anonymous Coward User ID: 1297814 Germany 12/14/2011 04:56 PM Report Abusive Post Report Copyright Violation | they said the image updates would only be updated five times an hour..not once every 5 hours I'm pretty sure that's normal for SOHO but I was just wondering when to expect it to enter the C2 field of view I'm guessing another 12+ hours? well, i heard it will be visible on dec15...on C2 for me (germany) only one hour to go^^ |
RTS REDUX (OP) User ID: 1388392 United States 12/14/2011 06:50 PM Report Abusive Post Report Copyright Violation | they said the image updates would only be updated five times an hour..not once every 5 hours I'm pretty sure that's normal for SOHO but I was just wondering when to expect it to enter the C2 field of view I'm guessing another 12+ hours? well, i heard it will be visible on dec15...on C2 for me (germany) only one hour to go^^ I meant LASCO C2 not SECCHI COR2.. LASCO C3 just updated btw..been waiting on the mods for the past 20 minutes to approve the pic |
Anonymous Coward User ID: 1297814 Germany 12/14/2011 06:54 PM Report Abusive Post Report Copyright Violation | Latest LascoC3 MOVIE (22:18): [link to sohowww.nascom.nasa.gov] and latest IMG 23:18: [link to sohowww.nascom.nasa.gov] Sungrazing Comets reports "Can definitely see saturation in the coma of Comet Lovejoy now, putting it close to mag 1 brightness" [link to twitter.com] yep i mean LASCO C2 too OP..im not a fresh noob on this^^ |
Anonymous Coward User ID: 1356782 United States 12/14/2011 07:00 PM Report Abusive Post Report Copyright Violation | Latest LascoC3 MOVIE (22:18): Quoting: IwantToBelieve76 [link to sohowww.nascom.nasa.gov] and latest IMG 23:18: [link to sohowww.nascom.nasa.gov] Sungrazing Comets reports "Can definitely see saturation in the coma of Comet Lovejoy now, putting it close to mag 1 brightness" [link to twitter.com] yep i mean LASCO C2 too OP..im not a fresh noob on this^^ It looks bigger than earth. Anyone have a size estimate on the coma? |
RTS REDUX (OP) User ID: 1388392 United States 12/14/2011 07:11 PM Report Abusive Post Report Copyright Violation | Latest LascoC3 MOVIE (22:18): Quoting: IwantToBelieve76 [link to sohowww.nascom.nasa.gov] and latest IMG 23:18: [link to sohowww.nascom.nasa.gov] Sungrazing Comets reports "Can definitely see saturation in the coma of Comet Lovejoy now, putting it close to mag 1 brightness" [link to twitter.com] yep i mean LASCO C2 too OP..im not a fresh noob on this^^ Sorry bout that.. I thought you might have been thinking about COR2 which was supposed to start picking it up about 00 UT today if I'm not mistaken according to sungrazers oh well at least SOHO is starting to do updates about every twelve minutes or so which is good.. [link to sohodata.nascom.nasa.gov] |
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Anonymous Coward User ID: 1297814 Germany 12/14/2011 07:24 PM Report Abusive Post Report Copyright Violation | Latest LascoC3 MOVIE (22:18): [link to sohowww.nascom.nasa.gov] :Lascoc32318: and latest IMG 23:18: [link to sohowww.nascom.nasa.gov] Sungrazing Comets reports "Can definitely see saturation in the coma of Comet Lovejoy now, putting it close to mag 1 brightness" [link to twitter.com] first :P^^ |
Anonymous Coward User ID: 1356782 United States 12/14/2011 07:38 PM Report Abusive Post Report Copyright Violation | This chart was posted on page 2 of this thread. It shows the Mag is to exceed -12 [link to cmpdtb.kommet.cz] |
RTS REDUX (OP) User ID: 1388392 United States 12/14/2011 07:44 PM Report Abusive Post Report Copyright Violation | This chart was posted on page 2 of this thread. It shows the Mag is to exceed -12 Quoting: Intruth [link to cmpdtb.kommet.cz] the brightness of a full moon is -13 the planet Venus is a -4 [link to www.icq.eps.harvard.edu] |
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