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originally posted by: Bilk22
The shadow length can determine the height of the object based on the known angle of the sun. I don't know how to obtain the angle of the sun from the timestamp of the pic. I'm sure Phage can help with that
Not knowing the inclination of the terrain and based on your info, I get the object to be between 8 and 9 meters or about 30' tall.
originally posted by: wildespace
originally posted by: Bilk22
The shadow length can determine the height of the object based on the known angle of the sun. I don't know how to obtain the angle of the sun from the timestamp of the pic. I'm sure Phage can help with that
There's a different browser for these images, and it gives more information about the image: wms.lroc.asu.edu...
The phrase you're looking for is "Incidence angle", which is the sun angle from the vertical (with 0 meaning sun in zenith, and 90 meaning sun on the horizon). For this particular image, sun angle was 69.3 degrees from vertical, so being about 30 degrees from the horizon.
When looking at shadows, it's important to remember that shadows falling downslope will be longer than the ones falling on level ground.
originally posted by: Rob48
a reply to: Blue Shift
Well it's nothing physically on the moon so the light direction is irrelevant. But yeah, the light is coming from totally the wrong direction to produce a shadow as annotated on the video!
originally posted by: bottleslingguy
originally posted by: Rob48
a reply to: Blue Shift
Well it's nothing physically on the moon so the light direction is irrelevant. But yeah, the light is coming from totally the wrong direction to produce a shadow as annotated on the video!
you started on the right track with it not being anything physically on the Moon but then ignored the begging of the question part which points to it being a shadow cast by something hovering some height above the surface
originally posted by: bottleslingguy
a reply to: Soylent Green Is People
so why not in m-1157, m-1158-59-60 etc? or m-2328-29-30?
originally posted by: bottleslingguy
why can't it be something locked in orbit with the camera?
Does anyone know how I can find or can provide a link to the location in my quoted post here, from another date of a satellite pass?
originally posted by: Bilk22
This "artifact" may have been discussed or posted before, but can this be identified? Link to source I'd also like to determine the size of this object. What is the scale for those images on LROC?
Link to larger ATS image