Thanks Jim!JimLafferty wrote:@Anthony>>>>the image was taken on September 26, 2012.
Regards!
Jim
Jim Lafferty
Redland, California 92374
http://scopetrader.com/jimlafferty
APOD: Black Sun and Inverted Starfield (2012 Oct 15)
- Anthony Barreiro
- Turtles all the way down
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Re: APOD: Black Sun and Inverted Starfield (2012 Oct 15)
May all beings be happy, peaceful, and free.
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- Asternaut
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Re: APOD: Black Sun and Inverted Starfield (2012 Oct 15)
The black sun looks to me like a micrograph of a white blood cell.
Re: APOD: Black Sun and Inverted Starfield (2012 Oct 15)
An Ocean of Flames....
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![Cool 8-)](./images/smilies/icon_cool.gif)
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Re: APOD: Black Sun and Inverted Starfield (2012 Oct 15)
The Sun?
Strange image![Confused :?](./images/smilies/icon_confused.gif)
Strange image
![Confused :?](./images/smilies/icon_confused.gif)
Re: APOD: Black Sun and Inverted Starfield (2012 Oct 15)
Thanks for commenting - twice - on your fascinating-looking image, Jim.
Ann
Ann
Color Commentator
Re: APOD: Black Sun and Inverted Starfield (2012 Oct 15)
It reminds me of a spongy old mushroom, seen from the top down.
- neufer
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Re: APOD: Black Sun and Inverted Starfield (2012 Oct 15)
AustiMN wrote:
It reminds me of a spongy old mushroom, seen from the top down.
Click to play embedded YouTube video.
Art Neuendorffer
Re: APOD: Black Sun and Inverted Starfield (2012 Oct 15)
if you color invert a black and white picture, don't you still have a black and white picture? How then does the sun's image get its bluish cast?A detailed solar view was captured originally in a very specific color of red light, then rendered in black and white, and then color inverted. Once complete, the resulting image was added to a starfield, then also color inverted.
- Chris Peterson
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Re: APOD: Black Sun and Inverted Starfield (2012 Oct 15)
The original description is a bit off. Actually, the source image should be described as monochromatic: there is only a single value (intensity) associated with each pixel. This is how the image was collected, not rendered. The result of this sort of imaging is a grayscale image. However, such images are often rendered in color, using some sort of mapping between intensity and color, since this can let us see more detail, and also can provide a more aesthetically pleasing image. That appears to have been done here.RickM wrote:if you color invert a black and white picture, don't you still have a black and white picture? How then does the sun's image get its bluish cast?A detailed solar view was captured originally in a very specific color of red light, then rendered in black and white, and then color inverted. Once complete, the resulting image was added to a starfield, then also color inverted.
Chris
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Chris L Peterson
Cloudbait Observatory
https://www.cloudbait.com
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Chris L Peterson
Cloudbait Observatory
https://www.cloudbait.com
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- Ensign
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Re: APOD: Black Sun and Inverted Starfield (2012 Oct 15)
The stacked monochrome image was inverted and then colored.--thanks.
Jim
Jim Lafferty
Redlands, Ca
Jim
Jim Lafferty
Redlands, Ca