Astronaut Scientific Debriefings, 1962-1963

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1cientific Debriefing
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ooper:
The stars in the Big Dipper could just be seen.
I noted the Big Dipper
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'!1th the bo.ttom star sinking down into it.
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Soules:
The top of the layer would be bow ;:nany degrees above the horizon?
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Ooo:per:
I figured it was about six or seven degrees.
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(Long period of sketching.)
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Peterson:
Would you estimate any appraisal in terms of stellar magnitude? You
explai:c.ed that the fifth magnitudes could be seen, did the weaker =-stars go out
in that area?
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(Still illustrating.)
Note:
During this period when ,900:per wa..s talking and sketching on the board,
the recorded comments are meaningless.
Cooper:
I can't recall a single ti.me at night but what I saw the haze leyer.
Dr. Voa.s:
I described the earth as. being d.a.I:k.
Which is darker, the earth
or the 11ttl.e band of sky?
Cooper:
When there was no moon the earth was darker. In general. there was more
light from the sky. It is a difference in two different blacks. The sky·is a
,· shinier black. The earth is a du.11 black.
Dr. Voa.s:
The horizon is very wel~ defined?
Cooper: It is actually a different black. There is a· distinct line of horizon
and the earth is darker. This is in complete night.
Dr. Voa.s:
When the moon comes up the earth becomes lighter as the moon shines on it?
Cooper: It shows up distinctly,' especially when there are c;:1.ouds.
Soules:
Here is a picture that Wally took.
Does that look like a haze band on the •.
horizon?
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O'Keefe:
When was that picture taken?
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Soules: Is that too high?
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