Allancw / Allan Weisbecker, first I must note that you have NOT addressed a single item posted here by those who know an awful lot more about light, astronomy, space sciences, photography, optics and the eye than you do... Not ONE. What might a sane person infer from that? And how long were you planning to spend on this forum *abusing it* by treating it as a blog? It won't be long if this continues.. I'll repeat the unanswered questions below.
Second I note that you have not responded on the question of whether this stars thing is your favorite, best evidence. I guess then we can assume that, as this was the first thing YOU wished to bring up in your new visit, that it
is the best in your opinion..
Third, earlier you asked that everything be dealt with systematically, so I'll be addressing everything you say line by line, just as I have above,
UNLESS you introduce a new topic before you have answered all questions on this one, in which case I (and I hope others) will be reporting you for the forum abuse I spoke of above.So, while waiting for you to answer the questions already asked, let's continue on the same topic. I wouldn't leave it for too long, Allancw, as the list of things you cannot answer (but everyone else here CAN..) will quickly become embarrassingly long, and a very good indication of your lack of knowledge in ANY of the required disciplines...
Which one of you
Wait -
you are quoting someone and
you ask others to tell you who it was? Are you seriously this ignorant/incompetent or is it just childish rudeness? What a lazy request - I'm not looking it up - could have been me, but who cares - let's just address it properly and with the proper context added.
Watch how this works Allan Weisbecker - this is what YOU should be doing.... said this:
What they couldn't do was see the stars if the Sun was in the same field of view.
Indeed, that is correct - you cannot see stars* if the Sun is in your field of view (due to simple eye capability and biology - I can roll out the Lux levels if you want, but I think that is pretty well accepted that if you have the Sun in your eyes you won't be seeing any stars..).
There are other situations where the Sun may be out of your field of view where the stars will still be invisible, so it is not a comprehensive statement,
but that is certainly one of those situations and it is correct.
C.11 If you believe otherwise, please outline why, or propose an experiment to prove your claim.* By 'stars' - in the context of this discussion we are discussing stars other than our Sun. I think only a blithering idiot would dispute the statement on that technical semantic..
No different to being on earth...
In the respect stated, ie
that the Sun is in your field of view, then yes, that too is correct. No matter whether you were in cislunar space, in orbit, on the Moon, on Earth..
IF the sun is in your field of view, then you will not be seeing stars. The Sun is a tiny bit brighter in space, sure, but that is not relevant here, as the difference in brightness of a distant star versus the Sun, is bazillions of times greater (that's a technical term..) than any tiny difference caused by having an atmosphere to scatter a bit of the light.
C.12 Allancw, in respect of the earlier statement, namely that having the Sun in your field of view will prevent you from seeing stars, is being in space in any significant way different to being on Earth?after all, do you see the stars in the daytime?
While it is possible - under some very precisely defined circumstances - to see stars in daytime, it is extraordinarily difficult, and is not possible while the Sun (or anything illuminated by the Sun..) is in your field of view. So again, that would seem to be perfectly correct within the terms of the discussion.
C.13 Allancw, under what circumstances do you claim to see stars in the daytime? C.14 Allancw, if you stand in a brightly lit parking lot at night, under one of the lights, can you see any stars in the region of those lights?C.15 How much light (in numeric terms) is there in that scene? What about when you are in a scene that is sunlit? And then, how much light (in numeric terms) do distant stars emit?I'll be happy to bring along some photographic evidence, showing how it relates to the operation of the human eye, if Allancw starts answering questions. hmmm... perhaps that is why he is staying quiet?
Anyone have a problem with this statement?
Nope,
not if the context is correct - those statements are quite reasonable, even though they go nowhere near covering the entire situation. If it is NOT, then stop dancing around AND PUT YOUR CASE. And then start working through all the following questions:
(re the statement about stars being 'washed out')
C.1 Is this just an analogy, perhaps?C.2 If you concede it is an analogy, then what possible interpretations have you considered?(If it is only one, then I accuse you of bias. "Washes out" could mean that the whole sky was bright, and that prevented his eyes from adapting - this seems to be your interpretation, as you state that you think the lack of atmosphere is the problem and that couldn't happen...)
C.3 Could it be that when he said that the Sun 'washes out' the stars, he is actually referring to the Sun washing out the WHOLE SCENE?(Who would have thought!!!, It could be that this astronaut is actually aware of his entire environment, rather than looking with tunnel vision (eg thru a telescope or other optical device - more about that later..) So what is in that entire scene? Here let me help..)
C.4-C.8 There's the Sun itself, the sunlit earth, the refractions/reflections and scattering through the porthole, the porthole edges, any external parts of the spacecraft that might be in view, any illuminated part of the spacecraft interior, the astronaut's attire and even his nose and anything else in his vision that may be illuminated by direct or indirect sunlight. Do you dispute any of that?C.9 Do you dispute the fact that if your eye has adjusted to anywhere near a daylight exposure (which is what it does as soon as anything at that light level is in the field of view), then it cannot possibly detect stars which are incredibly faint compared to daylight? (see C10).
C.10 How bright is starlight compared to daylight, Allan? I know the numbers - do you?