Thank you very much for all the answers. It has been really very helpful.
I have 1 more question. I live in USA, New Jersey. How do I located a certain star? For example how do I locate "Sirius"? Which direction I should be looking at what angle? How can I be sure?
I have some very basic atronomy questions that either I did not get answers to when I googled it or did not get very good explanation on the subject. So asking it here in this forum. I hope you guys do not mind answering such basics.
1) When I get out of my house at night and look at the...
Thanks for all your answers. This picture is really cool. Could you please explain what does it mean by "long long time" I am sorry I really don't know much about telescopes. I believe when you look at a telescope you see stuff. What difference it makes if you see it for longer time?
Also...
I have seen several photos of the our milky way galaxy, other galaxies and some photos of even 100's of galaxies in the same picture.
How do they do it? Usually if you see in the sky, all you see is the stars. (naked eyes)
I believe to be able to see actual of our milky way galaxy we need to...
To my understanding Radio signals use light. So would it be right to say that the maximum speed at what we can communicate with anything in space is at speed of light?
Would it be right to say that if we somehow managed to send a spaceship to a planet that is 10 lights years away, every...
OK thanks for correcting me on Velocity not being a force. But I am sure you knew what I was talking about.
To me, orbits should be circular becuase the parent body are in shape of a globe. I know I am wrong. Just trying to understand why I am wrong.
I have been told most of the planets around the sun have orbots elliptical in shape.
I now understand that the orbits are formed due to 2 forces. i.e gravity of the parent body acting against the velocity of the orbitting body.
The above only tells me that all orbitting objects should...
I have always wondered about this. When we went to the moon how did we communicate back to earth?
On the same note, what are the ways to communicate from the outer space? i.e from moon, mars, pluto?
If we managed to visit a place 20 light years away, how could we communicate back to Earth...
I have read that an object needs to have a velocity of around 8km/s to not fall back on Earth and to stay on orbit.
Based on the above, are all our human made sattelites constantly traveling at around 8km/s to not fall back on earth? Is so doen't it need a lot of fuel? Does it store all this...
I am very new to this forum and even to any astronomy discussion. I have been just fascinated by it and always wanted to learn more. Just never got time. But now I feel I have to manage time otherwise I will never be able to.
Anyways, I want to buy a telescope. How should I go about it. I am...
Based on my title, I have the following questions:
1) What are all the challenges for man to go on the moon?
2) What are all the challenges for man to go on the Mars planet?
I am mostly interested in what speed, what direction the shuttle is launched at? How much fuel is used in this...
Great! Thanks a lot. More Questions so I can understand this better.
1) So basically anything with less then 7.5 km/s velocity will fall back on Earth and anything with more then 11.2 km/s velocity will escape Earth into space?
2) What kind of orbits will be formed when they are thrown at...
Thanks a lot for your reply. The link you sent me was pretty good. Made things even more clear for me. I still have more questions.
1) You say orbits are almost circular if nothing to disturb them. In this case what is distrubing all the planents? I believe none of the orbits of any of the...
I am new to this forum so do not know all the rules of posting. So please don't mind if I have missed something. I have not been doing any physics and stuff for many many years, but have been having lots of curiosity about stuff, so will dare to ask it here.
I understand that orbits are due...