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Ah, so it took them only 5 minutes to adjust to their surroundings.
Interesting. That is a far cry from the 40 you posted. LOL.
Oh, my bad. The sky was cloudy when Neil et al landed on the moon, and Cernan & Co. had clear and sunny days.
And Chakin? Well he is an...
Award-winning science journalist and space historian Andrew Chaikin has authored books and articles about space exploration and astronomy for more than 25 years.
Are you?
You can see one star during the day -- the Sun! But because the sky is so bright (due to the Sun being bright), other stars are not visible. On the Moon, if you shield the Sun with your hand and let your eyes dark-adjust, you can see stars during the "day".
I found that, if you allowed yourself to just
focus and maybe even just shielded your eyes to some degree, even outside
the LM shadow you could see stars in the sky. I could see stars through my
helmet visor; not easily, but it can be done."
Optical unit
The CM had a fixed sextant the AOT, which could measure angles between stars, and Earth or Moon landmarks and planetary horizon. The unit included a scanning telescope for star sightings, and could be used to determine position and orientation in space. In contrast, the LM had an Alignment Optical Telescope, and could only determine the craft's orientation. The outer element of the AOT was a sun-shielded prism that could be rotated to one of three fixed positions relative to the LM, in order to cover a large portion of the lunar sky. When rotated, the AOT's position was readable by the AGC; by pointing the reticule at several different stars, the computer could determine the craft's orientation [1].
Lying, subterfuge, propaganda,
etc is all common practice in politics and war.
Originally posted by DJW001
reply to post by FoosM
Ah, so it took them only 5 minutes to adjust to their surroundings.
Interesting. That is a far cry from the 40 you posted. LOL.
It takes five minutes for the eye to adjust to bright light.
Originally posted by weedwhacker
reply to post by ppk55
How long did it take to set up each flag?? AND< only one needed to do it, while the other did something else.
While he is in the shadow side of the LM. Pitch black shadow.
Originally posted by FoosM
Kitt Peak and Cerro Tololo both had first light after the Apollo missions.
Silly to use those observatories as examples.
The unique opportunity
who cares what the advancements in telescope technology could do AFTER Apollo.
Originally posted by CHRLZ
Do you think NASA didn't know about the construction and inception of two of the largest telescopes in the world, even at the time of Apollo 11?
Originally posted by weedwhacker
reply to post by FoosM
You got it wrong.....again:
While he is in the shadow side of the LM. Pitch black shadow.
It wasn't "pitch black"...shot yourself in the foot. The video camera could see him. Know why? Reflected light. Same light that affected their dark-adaption abilities.
Originally posted by CHRLZ
PS - Just curious... Did ppk email foosm and yell "help - we need lots of distracting posts", or did it just sorta happen...
Originally posted by FoosM
It has been established that:
1. Astronomers wanted to have a moon based telescope.
And believed Apollo would provide it.
However,
a. None of the astronauts talked about seeing stars
b. NASA gimped the cameras for easily taking such photos.
c. They blamed it on system failures or mistakes
d. The possible photographs that were made, look lousy, and others are being kept under lock and key.
2. When Apollo finally brought an telescope/camera it was only for UV, yet
the US had just launched satellites that could do the same thing. So what was the point?
3. I asked everyone here who didnt think Astrophotography was not possible during the Apollo era.
those who answered said, yes it was possible.
BTW - I have little challenge for you, FoosM. A minute ago you rolled out the 'everyone', suggesting you might be talking to a group of knowledgeable astronomy folk. OK, then... Take this entire posting, and go to ANY astronomy club. Show it to the head honcho at that club, and get his/her comments on who is correct.
Originally posted by Reaper2137
well this is going to be the longest B.S thread in ATS history come 2015-2020 when Russia becomes the 2nd country to go to the moon. When they go and do it in the next few years and find that wow their is a-lot of space junk left from Apollo and the American's and they do it live.
Originally posted by CHRLZ
1. The difference between a lunar almost-vacuum and a high altitude location on earth is trivial - in the order of less than a single f-stop, and only a couple of stellar-magnitudes. (There's part of one of your answers, ppk...)
Originally posted by CHRLZ
b. NASA gimped the cameras for easily taking such photos.
What does 'gimped' mean, and please supply a citation for this - were the cameras properly set up for a daytime exposure or not? Were they meant to be taking pictures of their activities in daytime or not? What would have been required for a decent star image?
Yes images clearly show there was second light sources, such as studio lamps.
But they did START in the (pitch) dark and went into the (Bright) light.
Which made them have to LIGHT ADAPT. And light adaption takes about 5 minutes according to DJ's source.
Now going into the SHADOW from the BRIGHT sun would make them have to DARK adapt.
And now you have to wonder, how they got anything possibly done like photography bringing down
materials if their eyes needed to adjust for 20 to 40 minutes
So either the eye adaptation on the lunar surface wasnt as bad as you guys make it out to be, and they should have easily seen the stars, or it was as bad as it supposed to be, and going to and fro from the LM's shadow into the Sun would severely screw their vision, but not only for seeing stars, but for even working.
No, your post is a distraction.
You think you are making a point, but you are not.
1. Astronomers wanted to have a moon based telescope.
And believed Apollo would provide it.
However,
a. None of the astronauts talked about seeing stars
b. NASA gimped the cameras for easily taking such photos.
c. They blamed it on system failures or mistakes
d. The possible photographs that were made, look lousy, and others are being kept under lock and key.
2. When Apollo finally brought a telescope/camera it was only for UV, yet
the US had just launched satellites that could do the same thing. So what was the point?
3. I asked everyone here who didnt think Astrophotography was not possible during the Apollo era.
those who answered said, yes it was possible. Do you have a differing answer? Do you want to state "NO"
it wasn't possible?
So who cares what some observatory was or wasn't doing. If one or three observatories were so good at taking
images of the cosmos, why are we spending money on new telescopes and larger telescopes and orbiting telescopes? We seem to have an unusual fascination with looking at stars.
We are all just wondering why NASA and its Apollo program didn't have such a fascination for it. We could have added their images as a special collection to our growing library of images.
Yes images clearly show there was second light sources, such as studio lamps.
But they did START in the (pitch) dark and went into the (Bright) light.
Which made them have to LIGHT ADAPT. And light adaption takes about 5 minutes according to DJ's source.
Now going into the SHADOW from the BRIGHT sun would make them have to DARK adapt.
And now you have to wonder, how they got anything possibly done like photography bringing down
materials if their eyes needed to adjust for 20 to 40 minutes ...
When I use the word "gimped" I am saying "crippled" or "disabled".
What I am saying is that the Hasselblads had the ability to take timed or long exposures.
This was taken out, or disabled, during the modification process.
So that the Hasselblads were unable to take any decent photo of the cosmos even if the Astronauts would want to.
You made a lot of claims,
but where are your sources?
Originally posted by FoosM
Originally posted by Reaper2137
well this is going to be the longest B.S thread in ATS history come 2015-2020 when Russia becomes the 2nd country to go to the moon. When they go and do it in the next few years and find that wow their is a-lot of space junk left from Apollo and the American's and they do it live.
Wait a minute.
Dont go anywhere.
2015?
I havent looked into the Russian space program, but you are claiming the Russians
Are far enough to land (or just send) men on the moon in 4 years?
Which program is this and when did it start?
Originally posted by FoosM
Originally posted by Reaper2137
well this is going to be the longest B.S thread in ATS history come 2015-2020 when Russia becomes the 2nd country to go to the moon. When they go and do it in the next few years and find that wow their is a-lot of space junk left from Apollo and the American's and they do it live.
Wait a minute.
Dont go anywhere.
2015?
I havent looked into the Russian space program, but you are claiming the Russians
Are far enough to land (or just send) men on the moon in 4 years?
Which program is this and when did it start?