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Hi Gary Thanks for telling me where the picture was taken. I thought the
astronauts took if standing on the moon. It looked so much like a straight across the Moons surface catching the Earth just over the moon"s horizon. Bert |
#33
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Gary Sell wrote in
t: In article , says... Jonathan Right you are seeing our blue marble Earth coming up from the Moons horizon is breath taking. It is the best picture ever taken inside our solar system.(I sent away for it) We need not walk on the moon any more,but should have had a base there 27 years ago. Io is very cold,but what a view of Jupiter and its eye. I would die for the chance of being there. I'm going to die going over Niagra Falls in the worlds smallest sail boat,better if I died skating on the ice of Io(i like that) It will never happen so. I did build the boat for Niagara. One has to be a realist Bert Greetings Bert, If I am thinking of the same film footage and poster you are referring to, it was actually taken from orbit, not from the face of the moon. The moon is tidally locked with the Earth, which is why we always see the same side. This means if you were standing on the side of the moon where you could see the Earth, it would always be in the same position in the sky. There would be a little variance due to libration, but that is all. No earthrise or earthset from the surface of the moon, I'm afraid. The Earth traces out a monthly libration loop up to about 19 degrees across in the sky. This the distance from Rigel to Betelguese. Also, the Earth "rises and sets" on or near the lunar limb (selenographic longitudes ~90 deg and 270 deg). This is due once again to libration where it traces portions of its monthly loop above and below the horizon. Martin Lewicki |
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In message , Gary Sell
writes In article , says... The Earth traces out a monthly libration loop up to about 19 degrees across in the sky. This the distance from Rigel to Betelguese. Also, the Earth "rises and sets" on or near the lunar limb (selenographic longitudes ~90 deg and 270 deg). This is due once again to libration where it traces portions of its monthly loop above and below the horizon. After I posted this thought did occur to me, although I didn't have the figures you presented. I appreciate you posting them, it is interesting to know. I still believe the footage bert was referring to was taken from lunar orbit, but it would be interesting to observe the effects of libration from the lunar surface. It's still not an idea you want to sell to people who have been fooled by your claims of "watch the Earthrise" from your lunar hotel. As a spectacle it would be about as exciting as watching paint dry ;-) Now watching the sun rise would be dramatic. You would put your hotel inside a fairly small crater or within sight of the Lunar Alps or Apennines, so they'd get the sun shining on the tops of the hills while it's still dark below, and the light creeping down the slopes. They'd be watching the corona and zodiacal light, both of which are rare spectacles for most people on Earth. They'd have a few moments (minutes ?) to watch for prominences at sunrise and then you have some foolproof method of blacking out the view so they don't get blinded, and then you serve sunrisers instead of sundowners! -- "It is written in mathematical language" Remove spam and invalid from address to reply. |
#37
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In message , Gary Sell
writes In article , says... The Earth traces out a monthly libration loop up to about 19 degrees across in the sky. This the distance from Rigel to Betelguese. Also, the Earth "rises and sets" on or near the lunar limb (selenographic longitudes ~90 deg and 270 deg). This is due once again to libration where it traces portions of its monthly loop above and below the horizon. After I posted this thought did occur to me, although I didn't have the figures you presented. I appreciate you posting them, it is interesting to know. I still believe the footage bert was referring to was taken from lunar orbit, but it would be interesting to observe the effects of libration from the lunar surface. It's still not an idea you want to sell to people who have been fooled by your claims of "watch the Earthrise" from your lunar hotel. As a spectacle it would be about as exciting as watching paint dry ;-) Now watching the sun rise would be dramatic. You would put your hotel inside a fairly small crater or within sight of the Lunar Alps or Apennines, so they'd get the sun shining on the tops of the hills while it's still dark below, and the light creeping down the slopes. They'd be watching the corona and zodiacal light, both of which are rare spectacles for most people on Earth. They'd have a few moments (minutes ?) to watch for prominences at sunrise and then you have some foolproof method of blacking out the view so they don't get blinded, and then you serve sunrisers instead of sundowners! -- "It is written in mathematical language" Remove spam and invalid from address to reply. |
#38
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Hello Gary,
What if???? He did it, didn't he???? And he succeeded!!!! Didn't he!!!! Clear skies and horizons from Belgium "Gary Sell" schreef in bericht t... In article , says... Jonathan Right you are seeing our blue marble Earth coming up from the Moons horizon is breath taking. It is the best picture ever taken inside our solar system.(I sent away for it) We need not walk on the moon any more,but should have had a base there 27 years ago. Io is very cold,but what a view of Jupiter and its eye. I would die for the chance of being there. I'm going to die going over Niagra Falls in the worlds smallest sail boat,better if I died skating on the ice of Io(i like that) It will never happen so. I did build the boat for Niagara. One has to be a realist Bert Greetings Bert, If I am thinking of the same film footage and poster you are referring to, it was actually taken from orbit, not from the face of the moon. The moon is tidally locked with the Earth, which is why we always see the same side. This means if you were standing on the side of the moon where you could see the Earth, it would always be in the same position in the sky. There would be a little variance due to libration, but that is all. No earthrise or earthset from the surface of the moon, I'm afraid. The earth would go through different phases in it's static spot in the sky, and during a lunar eclipse the sun would move behind the stationary Earth intil blocked out. I'll bet the Sun's corona from the moon during an eclipse would be magnificent. Gary Sell http://www.whatcomastronomy.org/ |
#39
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Hello Gary,
What if???? He did it, didn't he???? And he succeeded!!!! Didn't he!!!! Clear skies and horizons from Belgium "Gary Sell" schreef in bericht t... In article , says... Jonathan Right you are seeing our blue marble Earth coming up from the Moons horizon is breath taking. It is the best picture ever taken inside our solar system.(I sent away for it) We need not walk on the moon any more,but should have had a base there 27 years ago. Io is very cold,but what a view of Jupiter and its eye. I would die for the chance of being there. I'm going to die going over Niagra Falls in the worlds smallest sail boat,better if I died skating on the ice of Io(i like that) It will never happen so. I did build the boat for Niagara. One has to be a realist Bert Greetings Bert, If I am thinking of the same film footage and poster you are referring to, it was actually taken from orbit, not from the face of the moon. The moon is tidally locked with the Earth, which is why we always see the same side. This means if you were standing on the side of the moon where you could see the Earth, it would always be in the same position in the sky. There would be a little variance due to libration, but that is all. No earthrise or earthset from the surface of the moon, I'm afraid. The earth would go through different phases in it's static spot in the sky, and during a lunar eclipse the sun would move behind the stationary Earth intil blocked out. I'll bet the Sun's corona from the moon during an eclipse would be magnificent. Gary Sell http://www.whatcomastronomy.org/ |
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