| Users Online Now: 1,417 (Who's On?) | Visitors Today: 282,447 | |
| Pageviews Today: 448,940 | Threads Today: 161 | Posts Today: 2,839 |
| 04:54 AM | ||
| Users Online Now: 1,417 (Who's On?) | Visitors Today: 282,447 | |
| Pageviews Today: 448,940 | Threads Today: 161 | Posts Today: 2,839 |
| 04:54 AM | ||
Not only has Elenin slowed... according to JPL... ITS TRAJECTORY HAS CHANGED | |
| CalmShock Offer Upgrade  User ID: 1320105  Canada09/08/2011 03:58 PM Report Abusive Post Report Copyright Violation | |
| Reboot User ID: 1540704  United Kingdom09/08/2011 03:59 PM Report Abusive Post Report Copyright Violation | |
| Erra User ID: 1522673  Hong Kong09/08/2011 04:03 PM Report Abusive Post Report Copyright Violation | |
| WiseManOnceSaid User ID: 828055  United States09/08/2011 04:05 PM Report Abusive Post Report Copyright Violation | even NASA said when they initially posted on the Buzzroom that its trajectory is always being affected by unknown factors, and that it "wasn't likely to impact earth, but its trajectory is just a projection" I have learned that the ambition of those who follow selfish precepts is no more than a chaotic waste, a finite gain that must be followed by infinite loss. For there is indeed a harmony in the universe, a concordant singing of common weal. To join that song one must find inner harmony, the notes that ring true. There is another point to that truth, that Evil does not sing. -Drizzt Do'Urden Gun control means using two hands. |
| Anonymous Coward User ID: 1539648 United States09/08/2011 04:06 PM Report Abusive Post Report Copyright Violation | It is really strange if this is totally out of the ordinary. Quoting: Erra WOuld love to hear astromuts opinion. Is it completely unheard of? The slowing down etc for a comet.... Well it makes absolutely no sense since objects SPEED UP as they approach perihelion. Unless they had the original math wrong. |
| CalmShock (OP) User ID: 1320105 Canada09/08/2011 04:08 PM Report Abusive Post Report Copyright Violation | It is really strange if this is totally out of the ordinary. Quoting: Erra WOuld love to hear astromuts opinion. Is it completely unheard of? The slowing down etc for a comet.... From what I understand, it's sort of like a slingshot effect. As the comet approaches the sun, its speed increases so that when it circles around it has enough breakaway speed so it doesn't get pulled into the sun itself...slowing down doesn't make much sense. Patience is a virtue I just can't wait to achieve - CalmShock |
| CalmShock (OP) User ID: 1320105 Canada09/08/2011 04:09 PM Report Abusive Post Report Copyright Violation | |
| HANGFIRE User ID: 1540730 United States09/08/2011 04:11 PM Report Abusive Post Report Copyright Violation | |
| madfwaz User ID: 1488608 United Kingdom09/08/2011 04:14 PM Report Abusive Post Report Copyright Violation | |
| CalmShock (OP) User ID: 1320105 Canada09/08/2011 04:19 PM Report Abusive Post Report Copyright Violation | The only thing I can think of is after the comet reaches perihelion, it begins to pick up more speed then originally thought and crosses earths orbit earlier then anticipated... Thus, making the distance from earth further then the original calculations. Patience is a virtue I just can't wait to achieve - CalmShock |
| Anonymous Coward User ID: 1317122 Canada09/08/2011 05:03 PM Report Abusive Post Report Copyright Violation | |
| Anonymous Coward User ID: 1535447  Croatia09/08/2011 05:07 PM Report Abusive Post Report Copyright Violation | |
| Anonymous Coward User ID: 1491473 United States09/08/2011 05:09 PM Report Abusive Post Report Copyright Violation | |
| The Chosen One User ID: 930689 United States09/08/2011 05:13 PM Report Abusive Post Report Copyright Violation | |
| ducati60 User ID: 1089309 United States09/08/2011 05:25 PM Report Abusive Post Report Copyright Violation | |
| ducati60 User ID: 1089309 United States09/08/2011 05:26 PM Report Abusive Post Report Copyright Violation | |
| GeekOfTheWeek User ID: 1383040 United States09/08/2011 05:33 PM Report Abusive Post Report Copyright Violation | Ok, so I just read through the "Elenin has slowed" thread and the day it crosses the ecliptic has changed from September 11th to September 13-14... here's the video Quoting: CalmShock [link to www.youtube.com] So I wondered how that would affect the distance from earth on October 17th... I took a look at the JPL simulator and apparently, the distance INCREASED from what used to be 0.232 au, to 0.234 au... Now the funny thing is that Elenin crosses earths orbit AHEAD of the earth, so if it slowed on its original path, the earth would be CLOSER to it on October 17th... The only way the distance of Elenin could have INCREASED is if it changed trajectory!! Here's a video I found that has it at 0.232au from earth on October 17th (skip to 6:13, the rest of the vid is useless) And here you can see for yourself the closest it comes October 17th is now 0.234au... [link to ssd.jpl.nasa.gov] I'm no astrophysicist, but all of a sudden the perihelion changes by nearly 3 days and so does its closest approach to earth, yet the two do not seem to add up with each other... Astromut, if you pass through here, feel free to explain this to me in terms I can understand. Exactly. I with you on this one. Why would they change it to be further ahead?? I get it, it's the "calm down sheeple, it's slowing yes, but that puts if further out silly" LOL As if we are that dumb. Now either the Sun's gravity has made it turn faster, by slowing down, or we have all the laws of physics totally wrong. Now I'm not the sharpest pencil in the box, but wow, even I can get this one. OR It's now under full control of the "galactic federation of light 'cough cough' and is slowing down for a rendezvous". Or we are all insane seeing this. I love physics. It bonds us eternally, it's what makes our computers work, it's what's in my morning cup of coffee, it's the thing that keeps the universe from vanishing due to lack of belief... |
| Anonymous Coward User ID: 1465190 United States09/08/2011 05:39 PM Report Abusive Post Report Copyright Violation | |
Astromut Senior Forum Moderator User ID: 1322561 United States09/08/2011 05:40 PM  Report Abusive Post Report Copyright Violation | I hope my reply isn't too technical to understand: [link to www.godlikeproductions.com] It applies to the shape of the orbit as well as the timing of any given "event" such as perihelion passage, ascending node passage, perigee distance, etc. A 2-body simulator is an over-simplification of the true orbit, and as the simulator is fed new keplerian elements the results it gives will change. The keplerian elements at two different epochs may look different, but if you were to account for perturbations from the planets they would actually agree with each other (in fact, you can use more complex software to give accurate keplerian elements at future epochs by taking those perturbations into account; that was the "trick" I used to know months ahead of time that a retrograde double eclipse would happen from SDO's orbital perspective: [link to www.godlikeproductions.com] ).  |
| Anonymous Coward User ID: 1535447 Croatia09/08/2011 05:42 PM Report Abusive Post Report Copyright Violation | |
| Astromut Senior Forum Moderator User ID: 1322561 United States09/08/2011 05:45 PM Report Abusive Post Report Copyright Violation | |
| Anonymous Coward User ID: 1508808 United States09/08/2011 05:45 PM Report Abusive Post Report Copyright Violation | I hope my reply isn't too technical to understand: Quoting: Astromut [link to www.godlikeproductions.com] It applies to the shape of the orbit as well as the timing of any given "event" such as perihelion passage, ascending node passage, perigee distance, etc. A 2-body simulator is an over-simplification of the true orbit, and as the simulator is fed new keplerian elements the results it gives will change. The keplerian elements at two different epochs may look different, but if you were to account for perturbations from the planets they would actually agree with each other (in fact, you can use more complex software to give accurate keplerian elements at future epochs by taking those perturbations into account; that was the "trick" I used to know months ahead of time that a retrograde double eclipse would happen from SDO's orbital perspective: [link to www.godlikeproductions.com] ).  |
| alongtimehere User ID: 1540054 United Kingdom09/08/2011 05:46 PM Report Abusive Post Report Copyright Violation | i think that gravity doesnt exist and what we are experiencing is magnetism and thus it finally makes sense. im sure astromut will agree with me on this one Last Edited by alongtimehere on 09/08/2011 05:47 PM |
| CalmShock (OP) User ID: 1320105 Canada09/08/2011 05:46 PM Report Abusive Post Report Copyright Violation | Ok, so I managed to get some info on how the JPL data may not be as consistent as we'd all like to believe. Apparently the JPL simulator doesn't factor in gravitational effects of the planets until the numbers are plugged in, and as more observations are made of the comet, the more the info gets updated.... Now, it seems odd that we only get privy to this info less then a week before the comet reaches perihelion. IF that's even the case. Patience is a virtue I just can't wait to achieve - CalmShock |
| Anonymous Coward User ID: 1532845 Canada09/08/2011 05:47 PM Report Abusive Post Report Copyright Violation | |
| Anonymous Coward User ID: 1432653 United States09/08/2011 05:49 PM Report Abusive Post Report Copyright Violation | |
| alongtimehere User ID: 1540054 United Kingdom09/08/2011 05:53 PM Report Abusive Post Report Copyright Violation | |
| Anonymous Coward User ID: 1530994 United States09/08/2011 05:54 PM Report Abusive Post Report Copyright Violation | By the way, perigee according to JPL is still at about 7:50 pm GMT on the 16th. It's not going to jump days, we know the orbit to a much higher degree of precision than that. A 2 body sim may give you the wrong results, however. Quoting: Astromut Is that the 16th of October you are referring to for perigee with the earth? |
| CalmShock (OP) User ID: 1320105 Canada09/08/2011 05:57 PM Report Abusive Post Report Copyright Violation | Astro, I asked you about Dr. Byron Glenn and Richard Hoagland in the other thread, but since you're on here now I'd like to hear what you think about that. For those of you that have no idea what I'm talking about... [link to www.youtube.com] [link to www.facebook.com (secure)] and here's an interesting interview with Hoagland about Elenin... [link to www.youtube.com] Patience is a virtue I just can't wait to achieve - CalmShock |
| THE Anonymous Coward! User ID: 1219797 United States09/08/2011 07:01 PM Report Abusive Post Report Copyright Violation | |
| Anonymous Coward User ID: 1527796 United States09/08/2011 07:07 PM Report Abusive Post Report Copyright Violation | Ok, so I managed to get some info on how the JPL data may not be as consistent as we'd all like to believe. Apparently the JPL simulator doesn't factor in gravitational effects of the planets until the numbers are plugged in, and as more observations are made of the comet, the more the info gets updated.... Quoting: CalmShock Now, it seems odd that we only get privy to this info less then a week before the comet reaches perihelion. IF that's even the case. Because that's bullshit. |
