APOD: The Crown of the Sun (2010 Jul 21)

Comments and questions about the APOD on the main view screen.
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APOD: The Crown of the Sun (2010 Jul 21)

Post by APOD Robot » Wed Jul 21, 2010 4:06 am

Image The Crown of the Sun

Explanation: During a total solar eclipse, the Sun's extensive outer atmosphere, or corona, is an inspirational sight. Subtle shades and shimmering features that engage the eye span a brightness range of over 10,000 to 1, making them notoriously difficult to capture in a single photograph. But this composite of 7 consecutive digital images over a range of exposure times comes close to revealing the crown of the Sun in all its glory. The telescopic views were recorded from the Isla de Pascua (Easter Island) during July 11's total solar eclipse and also show solar prominences extending just beyond the edge of the eclipsed sun. Remarkably, features on the dim, near side of the New Moon can also be made out, illuminated by sunlight reflected from a Full Earth.

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Mikes

Re: APOD: The Crown of the Sun (2010 Jul 21)

Post by Mikes » Wed Jul 21, 2010 6:45 am

Is that Mercury or Venus off to the left, or just some dust on the lens?

diederik

Re: APOD: The Crown of the Sun (2010 Jul 21)

Post by diederik » Wed Jul 21, 2010 8:02 am

Is it mercury or venus?
Is north at the top of the picture?

http://en.wikipedia.org/wiki/List_of_so ... st_century
gives location and date/time of the eclipse: July 11, 2010 19:34:38 Total 05m 20s 19°42′S 121°54′W / 19.7°S 121.9°W

http://www.wwu.edu/depts/skywise/planets.html
shows the position of the planets.

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Re: APOD: The Crown of the Sun (2010 Jul 21)

Post by neufer » Wed Jul 21, 2010 11:08 am

Mikes wrote:Is that Mercury or Venus off to the left, or just some dust on the lens?
Remember that that area is the most light sensitive part of the image and should observe many faint stars.

Mercury or Venus would have to be within less than a day of (a close) conjunction
... so much less than a 1% a priori probability of being that close.
Art Neuendorffer

workgazer

Re: APOD: The Crown of the Sun (2010 Jul 21)

Post by workgazer » Wed Jul 21, 2010 11:57 am

what caused the rings around the image ? i can see a pink hue then a thin green ring and a blue purple one beyond that.
Is this just a result of the photo or a feature of the corona?

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Re: APOD: The Crown of the Sun (2010 Jul 21)

Post by orin stepanek » Wed Jul 21, 2010 12:15 pm

I clicked on the link full earth and got a grey blank! :?
Orin

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Re: APOD: The Crown of the Sun (2010 Jul 21)

Post by owlice » Wed Jul 21, 2010 12:52 pm

This gorgeous image appeared with other eclipse pictures on the Observation Deck forum in this thread.
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Re: APOD: The Crown of the Sun (2010 Jul 21)

Post by vstill » Wed Jul 21, 2010 1:21 pm

New here. Hello all.

There is a cool video on YouTube (http://www.youtube.com/watch?v=zR6wVyBL ... r_embedded) of the eclipse as seen at sunset in Argentina.

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Re: APOD: The Crown of the Sun (2010 Jul 21)

Post by Beyond » Wed Jul 21, 2010 1:47 pm

orin stepanek wrote:I clicked on the link full earth and got a grey blank! :?
Orin, go back to the original Apod picture and then click on "full Earth". Sometimes the pictures do not carry over through the links.
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Re: APOD: The Crown of the Sun (2010 Jul 21)

Post by Chris Peterson » Wed Jul 21, 2010 2:16 pm

orin stepanek wrote:I clicked on the link full earth and got a grey blank! :?
The link in the APOD caption at the top of this discussion is incorrect. There is a space in the middle that shouldn't be there, so the necessary parameters are not being passed to the simulator. Either use the link in the original APOD, or you can click here.
Chris

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Re: APOD: The Crown of the Sun (2010 Jul 21)

Post by bystander » Wed Jul 21, 2010 2:40 pm

Chris Peterson wrote:The link in the APOD caption at the top of this discussion is incorrect. There is a space in the middle that shouldn't be there, so the necessary parameters are not being passed to the simulator.
fixed Thanks, Chris!

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Re: APOD: The Crown of the Sun (2010 Jul 21)

Post by mexhunter » Wed Jul 21, 2010 9:31 pm

Hi:
Great technique and great photography.
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Cesar
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gorbit

Re: APOD: The Crown of the Sun (2010 Jul 21)

Post by gorbit » Thu Jul 22, 2010 1:23 am

Are those curved lines on the top and bottom of the image the magnetic field's effect on the corona?

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Re: APOD: The Crown of the Sun (2010 Jul 21)

Post by orin stepanek » Thu Jul 22, 2010 2:02 am

Thanks Chris; thanks bystander; thanks Beyond! :) That's a neat picture too! 8-)
Orin

Smile today; tomorrow's another day!

rsanchez

Re: APOD: The Crown of the Sun (2010 Jul 21)

Post by rsanchez » Sat Sep 11, 2010 11:41 pm

Wow! Cool picture I have never seen anything like that

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