Ann,
You're the "Colour Queen"! Surely all (or almost all) colours in astronomical photos are artificial, chosen at random when the wavelengths shown are beyond visible light or else exaggerated when they are so faint? That 'blue' galaxy is surely so by choice of the picture editor?
APoD,
Thank you for the link to the NASA video about the picture, which mentions the Red Dot (last 25 seconds) whose nature is unknown. In showing the Dot, the camera zoomed into the image, revealing multiple faint dots all over the dark sky between the stars and galaxies. They seemed to be white so not even more distance objects than the many red-shifted galaxies. What are these? Artefacts?
John
You're the "Colour Queen"! Surely all (or almost all) colours in astronomical photos are artificial, chosen at random when the wavelengths shown are beyond visible light or else exaggerated when they are so faint? That 'blue' galaxy is surely so by choice of the picture editor?
APoD,
Thank you for the link to the NASA video about the picture, which mentions the Red Dot (last 25 seconds) whose nature is unknown. In showing the Dot, the camera zoomed into the image, revealing multiple faint dots all over the dark sky between the stars and galaxies. They seemed to be white so not even more distance objects than the many red-shifted galaxies. What are these? Artefacts?
John
Statistics: Posted by JohnD — Sat Jun 08, 2024 10:43 am — Replies 4 — Views 103