APOD: Leonids Over Monument Valley (2015 Nov 15)

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APOD: Leonids Over Monument Valley (2015 Nov 15)

Postby APOD Robot » Sun Nov 15, 2015 5:06 am

Image Leonids Over Monument Valley

Explanation: There was a shower over Monument Valley -- but not water. Meteors. The featured image -- actually a composite of six exposures of about 30 seconds each -- was taken in 2001, a year when there was a very active Leonids shower. At that time, Earth was moving through a particularly dense swarm of sand-sized debris from Comet Tempel-Tuttle, so that meteor rates approached one visible streak per second. The meteors appear parallel because they all fall to Earth from the meteor shower radiant -- a point on the sky towards the constellation of the Lion (Leo). The yearly Leonids meteor shower peaks again this week. Although the Moon's glow should not obstruct the visibility of many meteors, this year's shower will peak with perhaps 15 meteors visible in an hour, a rate which is good but not expected to rival the 2001 Leonids. By the way -- how many meteors can you identify in the featured image?

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Chris Peterson
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Re: APOD: Leonids Over Monument Valley (2015 Nov 15)

Postby Chris Peterson » Sun Nov 15, 2015 5:10 am

What I notice with these older images (and I have some of my own from the 1998-2001 Leonid storms) is just how bad film really was, and how much better meteor composites (and indeed, nearly all astronomical landscape images) are now that we're using electronic sensors.
Chris

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Re: APOD: Leonids Over Monument Valley (2015 Nov 15)

Postby geckzilla » Sun Nov 15, 2015 6:00 am

I counted 30 individual meteors using the count tool in Photoshop.
Just call me "geck" because "zilla" is like a last name.

Gawie la Grange

Re: APOD: Leonids Over Monument Valley (2015 Nov 15)

Postby Gawie la Grange » Sun Nov 15, 2015 7:08 am

I also counted 30 streaks

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Re: APOD: Leonids Over Monument Valley (2015 Nov 15)

Postby BMAONE23 » Sun Nov 15, 2015 7:12 am

I see 31

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Case
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Re: APOD: Leonids Over Monument Valley (2015 Nov 15)

Postby Case » Sun Nov 15, 2015 9:32 am

Are the plumes related to the meteors?
Image

I counted 30 streaks; could't find a 31st.

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Re: APOD: Leonids Over Monument Valley (2015 Nov 15)

Postby Ann » Sun Nov 15, 2015 10:58 am

Case wrote:Are the plumes related to the meteors?
Image


Photo: John Chumack.


I think so.

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epszteinvenoit

Re: APOD: Leonids Over Monument Valley (2015 Nov 15)

Postby epszteinvenoit » Sun Nov 15, 2015 12:45 pm

35.

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Re: APOD: Leonids Over Monument Valley (2015 Nov 15)

Postby ranjones » Sun Nov 15, 2015 1:55 pm

I was gonna say I saw a duckie and a horsie, but I changed my mind. :?

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Chris Peterson
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Re: APOD: Leonids Over Monument Valley (2015 Nov 15)

Postby Chris Peterson » Sun Nov 15, 2015 2:45 pm

Case wrote:Are the plumes related to the meteors?t.

Yes, they are persistent trains, dust left behind the meteor. They glow due to sodium and iron chemistry (a type of airglow) and can last for several minutes. We typically see them become distorted by high altitude winds.
Chris

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jandotto

Re: APOD: Leonids Over Monument Valley (2015 Nov 15)

Postby jandotto » Sun Nov 15, 2015 2:55 pm

Sorry folks but I made it 32

mrbillh53

Re: APOD: Leonids Over Monument Valley (2015 Nov 15)

Postby mrbillh53 » Sun Nov 15, 2015 4:51 pm

31. But the sun isn't burning. :lol2:

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Re: APOD: Leonids Over Monument Valley (2015 Nov 15)

Postby webolife » Sun Nov 15, 2015 10:35 pm

I agree with 31 plus a couple plumes.

chris.ross

Re: APOD: Leonids Over Monument Valley (2015 Nov 15)

Postby chris.ross » Mon Nov 16, 2015 12:49 am

I count 29

DanMancuso

Re: APOD: Leonids Over Monument Valley (2015 Nov 15)

Postby DanMancuso » Mon Nov 16, 2015 1:28 am

I could see all of them in that photo. They were really some small little one this go'round.. Who is in charge of rounding up the lot for next year (assuming I get the chance to see it)

I am seeing a message suggesting: "Your message contains too few characters." How many is appropriate when you only wish to make an obvious statement to answer a rather simple question???

I Believe it should be obvious that anyone sees everything they do... However, how they deal with what they saw and how they choose to record it in the place we have "discovered" in the place we remember what we do...

Still the red letters above still say - "Your message contains too few characters." how many is enough????

Perhaps this needs fixing?

AH!, there it is!

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Re: APOD: Leonids Over Monument Valley (2015 Nov 15)

Postby MarkBour » Mon Nov 16, 2015 2:16 am

1
Mark Goldfain

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Re: APOD: Leonids Over Monument Valley (2015 Nov 15)

Postby geckzilla » Mon Nov 16, 2015 2:18 am

Supposedly the minimum number of characters is... 1. Mark just tested this before I could. It is possible for a bug to occur and for you to see that message, though. If you do, resubmit the form and it should work.
Just call me "geck" because "zilla" is like a last name.

Dani1019

Re: APOD: Leonids Over Monument Valley (2015 Nov 15)

Postby Dani1019 » Mon Nov 16, 2015 5:42 am

I found 32

Guest

Re: APOD: Leonids Over Monument Valley (2015 Nov 15)

Postby Guest » Mon Nov 16, 2015 10:50 am

I found 30

Nebulosa1A

Re: APOD: Leonids Over Monument Valley (2015 Nov 15)

Postby Nebulosa1A » Mon Nov 23, 2015 12:48 am

All of them!
Hardy Harr Harrr.


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