Re: [meteorite-list] Fireball report from this morning in Utah
Ed- Reentering objects are responsible for only a tiny fraction of fireballs- well under 1% based on my empirical data. I think Marco has looked at this, too... he might have better numbers. In any case, while you certainly might have seen space junk, natural meteors are much more likely. There seems to be a strong correlation between color and speed, with slow objects being seen as bright green, and faster objects seen as pale green or white. I expect that is simply because the faster objects are hotter, and the "white" blackbody output is swamping the fainter oxygen emission. Reentering space junk is slow, and is usually reported as green. Chris * Chris L Peterson Cloudbait Observatory http://www.cloudbait.com - Original Message - From: "E.P. Grondine" <[EMAIL PROTECTED]> To: Sent: Thursday, December 07, 2006 9:00 AM Subject: Re: [meteorite-list] Fireball report from this morning in Utah > HI Chris - > --- Chris Peterson <[EMAIL PROTECTED]> wrote: > >> most of the rest see some variation of >> green, ranging from pale lime to bluish. This is >> probably caused by the 558 nm "forbidden" >> oxygen emission line, mixed to varying degrees with >> a white thermal emission. > > What is this? I remember that the first of the two > fireballs which I have seen was so green I thought it > was a re-entering war-head. > > Ed __ Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list
Re: [meteorite-list] Fireball report from this morning in Utah
HI Chris - --- Chris Peterson <[EMAIL PROTECTED]> wrote: > most of the rest see some variation of > green, ranging from pale lime to bluish. This is > probably caused by the 558 nm "forbidden" > oxygen emission line, mixed to varying degrees with > a white thermal emission. What is this? I remember that the first of the two fireballs which I have seen was so green I thought it was a re-entering war-head. Ed Do you Yahoo!? Everyone is raving about the all-new Yahoo! Mail beta. http://new.mail.yahoo.com __ Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list
Re: [meteorite-list] Fireball report from this morning in Utah
Color perception varies considerably between people (just ask who sees color in stars and who doesn't). About a third of people report no color in fireballs; most of the rest see some variation of green, ranging from pale lime to bluish. This is probably caused by the 558 nm "forbidden" oxygen emission line, mixed to varying degrees with a white thermal emission. Chris * Chris L Peterson Cloudbait Observatory http://www.cloudbait.com - Original Message - From: "E.P. Grondine" <[EMAIL PROTECTED]> To: Sent: Thursday, December 07, 2006 1:07 AM Subject: Re: [meteorite-list] Fireball report from this morning in Utah > Hi all - > > There's that green color again. last time it was lime > green. He probably saw something, but which direction > he saw it fall is another question. > > good hunting, > Ed __ Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list
Re: [meteorite-list] Fireball report from this morning in Utah
Hi all - There's that green color again. last time it was lime green. He probably saw something, but which direction he saw it fall is another question. good hunting, Ed --- Chris Peterson <[EMAIL PROTECTED]> wrote: > No reports here. > > When you are 9 miles "south" of Mesquite on I15 you > are actually driving > west, and I don't recall a rest area around there, > so I'm not sure where > the guy is talking about. If you talk with him, be > very careful with > directions. You really feel like you are driving > south on that stretch, > but you aren't. > > Given where he apparently saw it, it sounds like it > might be SE of Las > Vegas somewhere. It might have been a good show from > Vegas, but I don't > know how much faith you'd put in witnesses who are > outside at 3am . > > Chris > > * > Chris L Peterson > Cloudbait Observatory > http://www.cloudbait.com > > > - Original Message ----- > From: "Michael Farmer" <[EMAIL PROTECTED]> > To: > Sent: Wednesday, December 06, 2006 12:43 PM > Subject: [meteorite-list] Fireball report from this > morning in Utah > > > > This is a fireball report that I just recieved. > Anyone > > else get and reports of a possible fall in > Utah/Nevada > > this morning? > > Mike Farmer > > > > > > Hello, > > I am a truck driver, i drive between Cedar City, > UT > > and Primm, NV. I see alot of meteors and some are > > incredible. This morning i was driving south on > I15 > > about 9 miles south of Mesquite, NV. I saw a > green > > one come out of the west in a ENE track, it fell > thru > > a thin cloud layer and grounded west of the small > > mountain range to the east. That range is no more > than > > 15 miles from I15. If you stand in the rest area > and > > look due east that is the area of impact. It > stayed > > bright until 15 degrees above the horizon. As i > have > > said, > > I see these things every night, but never this > bright, > > never this sustained, and i have never seen one so > > close. > > Oh and it was around 3am > > > > Anyway, i wanted to share the sighting so if your > up > > this way, maybe you can find it. > > > > Take care, > > > > Tom Cook > > 702-813-5304 midnight-noon 7 days > > __ > Meteorite-list mailing list > Meteorite-list@meteoritecentral.com > http://six.pairlist.net/mailman/listinfo/meteorite-list > Need a quick answer? Get one in minutes from people who know. Ask your question on www.Answers.yahoo.com __ Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list
Re: [meteorite-list] Fireball report from this morning in Utah
No reports here. When you are 9 miles "south" of Mesquite on I15 you are actually driving west, and I don't recall a rest area around there, so I'm not sure where the guy is talking about. If you talk with him, be very careful with directions. You really feel like you are driving south on that stretch, but you aren't. Given where he apparently saw it, it sounds like it might be SE of Las Vegas somewhere. It might have been a good show from Vegas, but I don't know how much faith you'd put in witnesses who are outside at 3am . Chris * Chris L Peterson Cloudbait Observatory http://www.cloudbait.com - Original Message - From: "Michael Farmer" <[EMAIL PROTECTED]> To: Sent: Wednesday, December 06, 2006 12:43 PM Subject: [meteorite-list] Fireball report from this morning in Utah > This is a fireball report that I just recieved. Anyone > else get and reports of a possible fall in Utah/Nevada > this morning? > Mike Farmer > > > Hello, > I am a truck driver, i drive between Cedar City, UT > and Primm, NV. I see alot of meteors and some are > incredible. This morning i was driving south on I15 > about 9 miles south of Mesquite, NV. I saw a green > one come out of the west in a ENE track, it fell thru > a thin cloud layer and grounded west of the small > mountain range to the east. That range is no more than > 15 miles from I15. If you stand in the rest area and > look due east that is the area of impact. It stayed > bright until 15 degrees above the horizon. As i have > said, > I see these things every night, but never this bright, > never this sustained, and i have never seen one so > close. > Oh and it was around 3am > > Anyway, i wanted to share the sighting so if your up > this way, maybe you can find it. > > Take care, > > Tom Cook > 702-813-5304 midnight-noon 7 days __ Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list
[meteorite-list] Fireball report from this morning in Utah
This is a fireball report that I just recieved. Anyone else get and reports of a possible fall in Utah/Nevada this morning? Mike Farmer Hello, I am a truck driver, i drive between Cedar City, UT and Primm, NV. I see alot of meteors and some are incredible. This morning i was driving south on I15 about 9 miles south of Mesquite, NV. I saw a green one come out of the west in a ENE track, it fell thru a thin cloud layer and grounded west of the small mountain range to the east. That range is no more than 15 miles from I15. If you stand in the rest area and look due east that is the area of impact. It stayed bright until 15 degrees above the horizon. As i have said, I see these things every night, but never this bright, never this sustained, and i have never seen one so close. Oh and it was around 3am Anyway, i wanted to share the sighting so if your up this way, maybe you can find it. Take care, Tom Cook 702-813-5304 midnight-noon 7 days Yahoo! Music Unlimited Access over 1 million songs. http://music.yahoo.com/unlimited __ Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list
