Originally posted by ExPostFacto
reply to post by bochen181
I've never seen these photos. Thanks for posting. The moon is a good clip from us...but in relation to the sun it shouldn't be that much of a
difference in size considering the moon travels around the earth. That is a huge sun for sure.
One thing I noticed is the sun dogs in the photo. At least I think they are sun dogs. If they are sun dogs then there is an atmosphere on the moon.
Sun Dogs are created when light passes through ice crystals as they fall through a cloud. The ice crystals act exactly the same as a glass prism,
bending the light and seperating the colors. Since the amount the light bends depends on the color (red bends less than green and blue) the red looks
closer to the sun than the blue. The amount of bending is always the same, so sundogs always appear the same distance away from the sun.
[edit on 15-3-2010 by ExPostFacto]
There is no appreciable atmosphere on the moon. But playing devils advocate for now, if that were true then there would be far greater/dense
atmosphere on Earth too!
But even if one were to be using that exact same camera and film/lens to take a snapshot of the sun on earth I guarantee
you the sun would NOT look that big..
Which means only one thing.. those photos were taken on a production stage..
Notice the hotspot and falloff around the astronauts.. and the pool of light directly behind Aldrin prove that he is standing in the beam of a
spotlight. If this were real sunlight, the lunar surface should be evenly lit.
jayweidner.com...
Front Screen Projection
[edit on 15-3-2010 by bochen181]
Basically
NASA used scale models when and where it could, and in the scale models you could see the terrain being lite up almost perfectly
bright with no weird hotspot or falloff anomalies. However,
for closeup shots they could not use scale models and thus had to resort to using
stages and backdrops..That is usually when the problems of hotspot/falloff come to light (no pun intended).. and because
Because on a large set the lighting cannot be anything like as bright as the real Sun, a very large light source would have been necessary in order to
obtain adequate coverage over the expansive ‘moonscape’.
Whatever the actual construction of the Apollo super light rig, it appears not to have been perfect as an artificial sun. There are noticeable
hot-spots (or brighter areas) around shadows where the photographer has the 'sun' immediately behind him. An effect that can be seen in the centre
of many Apollo photographs – here is an example:
So ironically that would also explain your original post saying that there was atmosphere on the "moon"... if these photos were staged in an
elaborate set then OF COURSE there would be atmosphere! But even on earth (with 1 atm) nothing explains away that HUGE giant spotlight looking sun!
That is of course NASA had to employ a SUPERSPOTLIGHT to make it look like the "sun", and even then it still had problems of hotspot and
falloff..
One Giant Spotlight for Mankind, huh?
[edit on 16-3-2010 by bochen181]
