APOD: Black Sun and Inverted Starfield (2012 Oct 15)

[Anthony Barreiro]

@Anthony>>>>the image was taken on September 26, 2012.

Regards!

Jim

Jim Lafferty
Redland, California 92374
http://scopetrader.com/jimlafferty

Thanks Jim!

[starbridge]

The black sun looks to me like a micrograph of a white blood cell.

[Boomer12k]

An Ocean of Flames....


:---[===] *

[saturno2]

The Sun?
Strange image

[Ann]

Thanks for commenting - twice - on your fascinating-looking image, Jim.

Ann

[AustiMN]

It reminds me of a spongy old mushroom, seen from the top down.

[neufer]

It reminds me of a spongy old mushroom, seen from the top down.

Click to play embedded YouTube video.

[RickM]

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.

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?

[Chris Peterson]

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.

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?

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.

[JimLafferty]

The stacked monochrome image was inverted and then colored.--thanks.

Jim
Jim Lafferty
Redlands, Ca