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Stars that visibly move?
Last week, my GF and I were looking up at the city sky, and noticed that
one of the few visible stars was moving, ever so slightly. Within 10 minutes, it was no longer visible. Within a few minutes, we noticed another one. Were these satellites? They seemed to be too high to be planes, and the light was solid... I thought the ESS was the only satellite visible to the naked eye, but we did see two of these lights. Satellites? Stars? Planes? Does anyone know if the ESS' orbit takes it above Calgary, Alberta, Canada? -- .................................................. ............................ "Once something is seen, it cannot be made to be unseen." -Bertoldt Brecht .................................................. ............................ http://www.memeticcandiru.com |
#2
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Stars that visibly move?
In calgary.general FatherGuido wrote:
check http://www.bester.com/satpasses.html Cool! Looks like the ISS passes over Cowgary several times a day. Way cool! -- .................................................. ............................ "The human rights group [Amnesty International] said Israel has arrested more than 1,500 Palestinians in the past year, and that many of the detainees were tortured" -Laurie Copans, Associated Press, (28/08/2001) .................................................. ............................ http://www.memeticcandiru.com |
#3
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Stars that visibly move?
Yes they are satellites of all kinds.
US & Canadian satellites apparently travel east to west while Russian satellites travel South to North. You would think with the earth spinning and creating gravity the sat's would all travel the way the earth spins ? JD "Black Jacque Shellacque" wrote in message ... wrote: Last week, my GF and I were looking up at the city sky, and noticed that one of the few visible stars was moving, ever so slightly. Within 10 minutes, it was no longer visible. Within a few minutes, we noticed another one. Were these satellites? They seemed to be too high to be planes, and the light was solid... I thought the ESS was the only satellite visible to the naked eye, but we did see two of these lights. Satellites? Stars? Planes? Does anyone know if the ESS' orbit takes it above Calgary, Alberta, Canada? Could be satellites. I've seen them overhead before, although it is much easier to spot them when you are outside the city and away from the lights. -- In God we trust, all others we virus scan. |
#4
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Stars that visibly move?
"Rat Patrol" wrote in
: Yes they are satellites of all kinds. US & Canadian satellites apparently travel east to west while Russian satellites travel South to North. You would think with the earth spinning and creating gravity the sat's would all travel the way the earth spins ? Some do. Some don't. The earth spinning has nothing to do with creating gravity however, so that doesn't affect how the sattelite moves. You can have the sattelite go any which direction you want, provided you do your physics properly. I think it was covered in physics 20 for me :} |
#5
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Stars that visibly move?
wrote:
Last week, my GF and I were looking up at the city sky, and noticed that one of the few visible stars was moving, ever so slightly. Within 10 minutes, it was no longer visible. Within a few minutes, we noticed another one. Were these satellites? They seemed to be too high to be planes, and the light was solid... I thought the ESS was the only satellite visible to the naked eye, but we did see two of these lights. Satellites? Stars? Planes? Does anyone know if the ESS' orbit takes it above Calgary, Alberta, Canada? UFOs? Maybe they were here to claim their free stampede breakfast? Unlikely, but I have seen similar 'things' quite often myself when having a beer on my balcony! They normally don't start moving until I have consumed 8 or more pints though... |
#6
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Stars that visibly move?
Some do. Some don't. The earth spinning has nothing to do with creating gravity Excuse me ! Of course the rotation (spinning) of the earth causes gravity. Why would say it doesn't ? |
#7
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Stars that visibly move?
wrote in
: Last week, my GF and I were looking up at the city sky, and noticed that one of the few visible stars was moving, ever so slightly. Within 10 minutes, it was no longer visible. Within a few minutes, we noticed another one. Were these satellites? They seemed to be too high to be planes, and the light was solid... I thought the ESS was the only satellite visible to the naked eye, but we did see two of these lights. Satellites? Stars? Planes? Does anyone know if the ESS' orbit takes it above Calgary, Alberta, Canada? Many are naked eye visible. Go here and enter your location plus the date & time and it will show you what was passing: http://www.heavens-above.com/ L. |
#8
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Stars that visibly move?
In calgary.general Rat Patrol wrote:
Of course the rotation (spinning) of the earth causes gravity. Why would say it doesn't ? I believe it is the MASS of the earth that causes gravity. I imagine the spinning would actually cause a converse effect, similar to centrifugal force. -- .................................................. ............................ "Woe to him who builds his house by unrighteousnesswho makes his neighbour serve him for nothing, and does not give him wages" -Jeremiah 22:13 .................................................. ............................ http://www.memeticcandiru.com |
#9
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Stars that visibly move?
"Rat Patrol" wrote in message ... Some do. Some don't. The earth spinning has nothing to do with creating gravity Excuse me ! Of course the rotation (spinning) of the earth causes gravity. Why would say it doesn't ? Spin has nothing to do with gravity. It is the mass of the object that "creates" gravity". You, yourself, exert a gravitational force on every object around you but it is negligible due to the fact that your mass is relatively small. If the Earth stopped spinning its gravitational force would not change. Many satellites are in a geo-stationary orbit and do not move at all in relation to the surface of the Earth. Terry |
#10
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Stars that visibly move?
"Rat Patrol" wrote in message ... Yes they are satellites of all kinds. US & Canadian satellites apparently travel east to west while Russian satellites travel South to North. Wrong. Which way did MIR go? There are plenty of "south to north" and indeed "north to south" from everyone. Most Notably the bus-sized european "envisat" You would think with the earth spinning and creating gravity the sat's would all travel the way the earth spins ? They could go in any direction. Its a matter of choice, but easier to launch a rocket "with the spin" from near the equator. If you want them to go in polar orbit its better to have less "spin" by launching from closer to the poles (ie Alaska) |
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