The Solar System compared to the Heart Nebula

Heart Nebula
MaximDL user interface during an H-alpha exposure of the Heart Nebula. This image is exposed only 15-minutes at f/7.

How many pixels would make up our solar system on this image of the center of the Heart Nebula?

Answer: only 0.014 pixel !


Numbers used

Neptune's orbit is 499 light minutes  in diameter. The camera has an image area of 4000 x 4000 pixels. The Heart Nebula's width, 200 light years, makes up approximately 3000 pixels across the original image, of which the image above is only a detail. One light year is then 15 pixels, so 499 light minutes is 0.014 pixel.