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The surface of the moon is bright.
Albedo ( /ælˈbiːdoʊ/), or reflection coefficient, derived from Latin albedo "whiteness" (or reflected sunlight), in turn from albus "white", is the diffuse reflectivity or reflecting power of a surface. It is defined as the ratio of reflected radiation from the surface to incident radiation upon it. Being a dimensionless fraction, it may also be expressed as a percentage, and is measured on a scale from zero for no reflecting power of a perfectly black surface, to 1 for perfect reflection of a white surface.
Most land areas are in an albedo range of 0.1 to 0.4.[7] The average albedo of the Earth is about 0.3.[8] This is far higher than for the ocean primarily because of the contribution of clouds.
The overall albedo of the Moon is around 0.12, but it is strongly directional and non-Lambertian, displaying also a strong opposition effect.[18] While such reflectance properties are different from those of any terrestrial terrains, they are typical of the regolith surfaces of airless solar system bodies.
the property that defines an ideal diffusely reflecting surface. The apparent brightness of such a surface to an observer is the same regardless of the observer's angle of view. More technically, the surface's luminance is isotropic, and the luminous intensity obeys Lambert's cosine law. Lambertian reflectance is named after Johann Heinrich Lambert.
Originally posted by GaryN
The surface of the moon is bright.
Where the heck do you get that from?? Just because it looks bright from the Earth? ...
... According to NASA figures the light averaged that of a location on Earth at about the position of Houston, Texas, 15 minutes AFTER sundown!!
ABSTRACT
An investigation into the levels of ambient lighting on the lunar surface indicates
that for most nearside locations, illumination will be adequate throughout most of the
lunar night to conduct extravehicular activities (EVAs) with only minor artificial illumination.
The maximum lighting available during the lunar night from Earthshine will be
similar to the light level on a July evening at approximately 8:00 p.m. in the southern
United States (approximately 15 minutes after sunset). Because of the captured rotation
of the Moon about the Earth, the location of the Earth will remain approximately constant
throughout the lunar night, with consequent constant shadow length and angle.
Variations in the level of Earthshine illumination will be solely a function of Earth phase
angle. Experience during the Apollo Program suggests that EVA activities conducted
during the period around the lunar noon may be difficult due to lack of surface definition
caused by elimination of shadows.
Originally posted by GaryN
The surface of the moon is bright.
Where the heck do you get that from?? Just because it looks bright from the Earth? Read some NASA mission reports, study the cameras and lenses and exposure times and the film speed, and to anyone with any understanding, it is obvious the light is extremely poor.
Originally posted by GaryN
ISO 50 | f/13 | 1/8000sec | 10 stop ND filter (that makes f/23)
The contrast of your body and your mind inside ... essentially a one-person spaceship, which is your spacesuit, where you're holding on for dear life to the shuttle or the station with one hand, and you are inexplicably in between what is just a pouring glory of the world roaring by, silently next to you — just the kaleidoscope of it, it takes up your whole mind. It's like the most beautiful thing you've ever seen just screaming at you on the right side, and when you look left, it's the whole bottomless black of the universe and it goes in all directions. It's like a huge yawning endlessness on your left side and you're in between those two things and trying to rationalize it to yourself and trying to get some work done.
On what it's like to do a spacewalk
[astronauts have lights on their helmets which are on during space walks while they're on the night side of earth so that they can illuminate whatever is in front of them - this normally prevents dark adaptation even while on earth's night side]
...
[He talks about the darkness of the sky you mentioned, but he goes on LATER in the interview to describe having to shut his lights off in order to dark adapt, something you lied in claiming he never mentioned]
I was coming across the Indian Ocean in the dark. I was riding on the end of the robot arm ... [and] I thought, "I want to look at Australia in the dark," because everyone lives along the coast, starting with Perth and across and it's like a necklace of cities. So I shut off my lights, and I let my eyes completely adjust to the darkness...
It's awfully dishonest of you (and against site rules as well) to not include a link back to the source of your quote. I know why you did that though, you'd knew I'd find this:
but ended up seeing aurora instead, something he would have missed if he had not deliberately dark adapted himself
I talked to Barbara Morgan about seeing stars from the flight deck of the shuttle. When they shut the lights off while on the night side and deliberately allow themselves to dark adapt, they can see a huge canvas of stars all over the sky, more vivid than anything they've seen on earth, she told me so herself.
The guy who took this?
They used specialist lenses and films and techniques to do most of them, but occasionally Venus is so bright you can see it in 'ordinary' photographs from the surface.
GaryN
The Aurora are quite bright enough to see without dark adaptation from Earth, as are the stars, and I've been through this before.
GaryN
Strange that even after all these years, some images are still not available,
On Earth, the atmosphere is thick enough that you don't need to dark adapt to see a good many stars,
hellobruce
Exactly which images are not available?
While living and working in space was a tremendous experience, it also presented us with many challenges. Some of which aren’t so obvious. Photographically speaking, there were a number of hurdles. The dynamic range of the subject was potentially huge. The darkest darks you can imagine along with the brightest highlights. With no atmosphere, there is probably another stop or two of light on bright subjects. I would guess that the dynamic range of some scenes approaches 16 or 17 stops. Here’s a shot of Rick Mastracchio outside during one of the space-walks the sunlit EVA suit and thermal blankets is a huge difference from the blackness of the background.
The surface of the moon is bright.
GaryN
Where the heck do you get that from?? Just because it looks bright from the Earth? Read some NASA mission reports, study the cameras and lenses and exposure times and the film speed, and to anyone with any understanding, it is obvious the light is extremely poor. They had a difficult time especially with the video cameras, read about their development and what they had to do to get even the crappy video they did. Albedo 0.7 for the most part, one or two areas where it gets to .12, but still as dark as a blacktopped car park, it is NOT bright! According to NASA figures the light averaged that of a location on Earth at about the position of Houston, Texas, 15 minutes AFTER sundown!! The Russians and the USA gave up trying to video the far side of the Moon, their most sensitive TV cameras and the f/0.7 high speed lenses couldn't do it, and any video you might see claiming to be of the far side of the Moon uses laser altimeters and IR and UV spectography. All the information is out there, so either nobody wants to believe it because Hollywood has them fooled, they don't understand the technology used, or as I have long suspected, ATS is a total disinfo site.
I doubt I'll be back, eh? :-)
They didn't not take pictures of stars on purpose
GaryN must have some exceptionally good eyes if he can blind himself with bright light, walk out, and see stars immediately, without the need for dark adaptation. I envy him.
GaryN
The FUVC device was huge and very heavy, the cost to NASA to get it to the moon would be huge in terms of fuel per pound. You can not say that they did not take pictures of stars on purpose.
They knew from the results of the experiment that visible light astronomy in space was a waste of time, and that spectral imaging was the future.
The CCD and then the Schack-Hartmann optics sciences completely revolutionised space based astronomy.
The reason NASA has made certain images and experiment results difficult to obtain is that if you do your homework it means that away from a planet or moon with a considerable atmoshere, humans will not be able to see the stars,
which means that light does not travel as we now think it does, and that means that the whole of present day astronomy is junk.
The distances to the celestial objects, and even what those objects are is cast into great doubt, as all their calculations are based on a conventional model of how light travels in space.
Eric Dollard was right, that if the stars are not visible in space, when we can clearly see them from Earth, then everything has to change, even the existing models of what the Sun is and how it works.
If Chris Hadfield said he could not see stars from orbit while looking into deep space, you'd better believe him, he was there, and he is a smart guy who thought about that fact, about "our planet and how it reacts with the energy from the sun and how our magnetic field works and how the upper atmosphere works". How the upper atmosphere works is very important, and if stars are not visible there, then "something is rotten in the state of Denmark". Very rotten.
What do the stars look like from space? Are they bigger?
The stars don't look bigger, but they do look brighter. When you're on Earth, if you go to the top of a mountain, the stars look much brighter than they do at sea level. And because the space shuttle is above Earth's atmosphere, it's like being on a very, very high mountain. So they look brighter, but not bigger
But that is not the best part. The best part and by far my favorite view up here is the view of the universe at night. The stars up here are unbelievable… It looks like someone has spread diamond dust over a black velvet blanket. The Milky Way is easily visible… like a rainbow of stars over the entire earth… I cannot keep my eyes off of them I put my head to the window and stay there until the coldness of the glass gives me a headache… then I pull my head back a little and continue gazing out.
like a rainbow of stars over the entire earth…
Why stick at Hafield, how about Sally Ride:
You can watch the videos here - in one showing stars one of the ISS crew describes how he got the images
I'm sure all the astronomers who look through telescopes every day will be devastated that they wasted all that time.