APOD: SDO: The Extreme Ultraviolet Sun (2010 Apr 23)

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APOD: SDO: The Extreme Ultraviolet Sun (2010 Apr 23)

Post by APOD Robot » Fri Apr 23, 2010 3:52 am

Image SDO: The Extreme Ultraviolet Sun

Explanation: Don't panic, the Sun has not gone wild. But this wild-looking portrait of the nearest star to planet Earth was made on March 30th by the recently launched Solar Dynamics Observatory (SDO). Shown in false-color, the composite view covers extreme ultraviolet wavelengths and traces hot plasma at temperatures approaching 1 million kelvins. At full resolution, SDO image data is intended to explore solar activity in unprecedented detail. In fact, SDO will send 1.5 terabytes of data back each day, equivalent to a daily download of about half a million MP3 songs. New SDO data releases include a high-resolution movie of the large, eruptive prominence seen along the solar limb at the upper left.

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grayson

Re: APOD: SDO: The Extreme Ultraviolet Sun (2010 Apr 23)

Post by grayson » Fri Apr 23, 2010 4:13 am

If you zoom in on the flare at about 2 oclock, (the smaller one) theres a distortion that looks almost like a worm or snake. Is that just an image problem or could it be something else?

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Re: APOD: SDO: The Extreme Ultraviolet Sun (2010 Apr 23)

Post by yasgur » Fri Apr 23, 2010 6:14 am

The color and texture is reminiscent of Starry Night. I guess van Gogh knew what he was doing. :wink:

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Re: APOD: SDO: The Extreme Ultraviolet Sun (2010 Apr 23)

Post by bystander » Fri Apr 23, 2010 7:10 am

SDO Delivers Stunning First Images
http://asterisk.apod.com/vie ... 31&t=19156

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Re: APOD: SDO: The Extreme Ultraviolet Sun (2010 Apr 23)

Post by Redbone » Fri Apr 23, 2010 10:51 am

grayson wrote:If you zoom in on the flare at about 2 oclock, (the smaller one) theres a distortion that looks almost like a worm or snake. Is that just an image problem or could it be something else?
Good catch, it looks like an image defect. I was amazed at how well defined the sun's surface is at that resolution.

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Re: APOD: SDO: The Extreme Ultraviolet Sun (2010 Apr 23)

Post by wonderboy » Fri Apr 23, 2010 11:21 am

Theres another anomaly at around 11 oclock, if it is a distortion, Its a straight line of plasma, or at least thats what it looks like. Any ideas?

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Re: APOD: SDO: The Extreme Ultraviolet Sun (2010 Apr 23)

Post by HellCat » Fri Apr 23, 2010 2:04 pm

Incredible. I'd subscribe to cable if they could start streaming this in real time - "Sun TV"

Doesn't this constitute an unprocessed image? The boys in quality control still have to sort through all the various filters and do some cleanup.

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Re: APOD: SDO: The Extreme Ultraviolet Sun (2010 Apr 23)

Post by Ayiomamitis » Fri Apr 23, 2010 5:14 pm

What a stunning photo. Gives a new dimension to the expression "one photo, one thousand words".

Looking at the photo, one has a sense of 3-D as well.

Anyway, a delicious result!

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Re: APOD: SDO: The Extreme Ultraviolet Sun (2010 Apr 23)

Post by biddie67 » Fri Apr 23, 2010 9:15 pm

Amazing - takes my breath away by both the beauty of the picture and what the SDO just might tell us ....

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Re: APOD: SDO: The Extreme Ultraviolet Sun (2010 Apr 23)

Post by HellCat » Wed Apr 28, 2010 7:28 pm

It's quite a bit late, but I saw one of the more recent releases from SDO and the 'goober' we noticed at the 2 o'clock position is still there. Looks like it may be a permanent feature of that particular CCD.

http://www.youtube.com/watch?v=eWrm-dADE8w

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Re: APOD: SDO: The Extreme Ultraviolet Sun (2010 Apr 23)

Post by bystander » Wed Apr 28, 2010 7:43 pm

grayson wrote:If you zoom in on the flare at about 2 oclock, (the smaller one) theres a distortion that looks almost like a worm or snake. Is that just an image problem or could it be something else?
HellCat wrote:It's quite a bit late, but I saw one of the more recent releases from SDO and the 'goober' we noticed at the 2 o'clock position is still there. Looks like it may be a permanent feature of that particular CCD.
Dust on the CCD camera as explained in the article posted here.