Re: Risposte alle pagine lunari
Inviato da harvey il 7/5/2008 1:48:36
A proposito di albedo:
http://history.nasa.gov/alsj/a11/AS11-40-5916HR.jpg
"Journal Contributor Rob South calls attention to the lighter-colored surface in the center foreground.
As we know from orbital photos, the area around the LM is scoured by the descent engine and that the scoured area has a higher albedo and, hence a lighter color. Once the astronauts get outside, they knock the soil around with their feet and restore the immediate area to something like its normal brightness. This can be seen quite dramatically in any number of post-EVA taken out the LM windows on A11 and the other missions and even in high-res details from Pan camera frames.When the astronauts work well away from the LM, they are on surfaces undisturbed by the descent engine and the soil they disturb does not have a noticeably different albedo from undisturbed soil.
The patch of lighter-colored soil in 5916 has been scoured by Eagle's descent engine but has not yet been disurbed by the crew."
http://history.nasa.gov/alsj/a11/AS11-40-5916HR.jpg
"Journal Contributor Rob South calls attention to the lighter-colored surface in the center foreground.
As we know from orbital photos, the area around the LM is scoured by the descent engine and that the scoured area has a higher albedo and, hence a lighter color. Once the astronauts get outside, they knock the soil around with their feet and restore the immediate area to something like its normal brightness. This can be seen quite dramatically in any number of post-EVA taken out the LM windows on A11 and the other missions and even in high-res details from Pan camera frames.When the astronauts work well away from the LM, they are on surfaces undisturbed by the descent engine and the soil they disturb does not have a noticeably different albedo from undisturbed soil.
The patch of lighter-colored soil in 5916 has been scoured by Eagle's descent engine but has not yet been disurbed by the crew."
Messaggio orinale: https://old.luogocomune.net/site/newbb/viewtopic.php?forum=13&topic_id=4284&post_id=118080