I have a genuine question.
Why dont you see stars in the photos?
Try taking a night-time photo with a modern digital camera.
Report back when you have tried.
I did, no stars. But you didnt read the link I provided.
""Just how dim is the sunlight on Pluto, some three billion miles away? While sunlight is much weaker than it is here on Earth, it isn’t as dark as you might expect. In fact, for just a moment during dawn and dusk each day, the illumination on Earth matches that of high noon on Pluto.""
In this picture, Pluto doesnt looks like the illumination is comparable to earth dusk or dawn. (please correct me on this) Its too luminous as far as I can see. So either NASA increased the exposure to see it brighter or It looks like that way already. If they changed the exposure, we would see stars along with pluto, right?
You've answered your own question. Stars are dim and if there is a bright object in the field of view then the camera settings will not be set to register the starlight. You can get stars into that type of image in two ways:
- Take two exposures and layer them onto each other.
- Expose correctly for the stars and have the dwarf planet over-exposed
As the object of interest is the dwarf planet, what would be gained by setting the camera to expose for the stars?
As for the image being "too luminous", you are showing that you don't really understand photography. You would have to factor in the exposure, f-speed and so on to understand how the image is built up. The image might even be the result of stacking multiple images to counteract noise. Or it may be taken in different wavelengths to show certain details (for example, amateur astrophotographers will use methane filters to image cloud details on the gas giants, of near-infrared to cut through atmospheric distortion).
I dont have a good understanding of photgraphy, you are right.
I stand corrected then.
You don't need one. Take the camera of your choice, go out on a clear night, photograph stars.
There are only 3 possible results.
1. You won't do it.
2. You will make excuses.
3. You will do it and discover how difficult it actually is to photograph stars.
I really hope you will do number 3. Until you attempt it, you really do not appreciate how much effort is involved. I have hours of wasted long exposures, all destroyed because some idiot turned on the kitchen light.
The only thing that will really persuade you is when you try and fail. As I did many years ago. Now, I have several thousands worth of gear, and plan to spend thousands more.
Nevertheless, ISO, aperature and so forth are the same regardless. Take whatever camera you have and go photograph some stars. Post your results right here.
In advance, I know what your results will be, and I know you will not post them.