I want to get to the omega and horse head nebula and sirius in a round trip, how long would it take to get make the round trip. (Getting to means normal viewing distance)|||"The Omega Nebula is between 5,000 and 6,000 light-years from Earth."
(http://en.wikipedia.org/wiki/Omega_Nebul鈥?/a>
"[The Horsehead Nebula] is approximately 1500 light years from Earth."
(http://en.wikipedia.org/wiki/Horsehead_N鈥?/a>
"[Sirius is at] a distance of 2.6 parsecs (8.6 light years)"
(http://en.wikipedia.org/wiki/Sirius)
Look up the directions to these objects so as to compute the length of a trip that includes all of them. It will take a good many millennia, though, even if you travel at c....|||If you travel with the speed of light, it takes you 500 years.|||The Omega Nebula is about 5,000-6,000 light years from Earth.
The Horse Head Nebula is approximately 1,500 light years from Earth and Sirius is about 8.6 light years away. =] So even at the speed of light you'd be waiting a while before you get there. =]|||The effects of special relativity are such that you could conceivably accomplish such a journey within several years, as measured and experienced by you. This would be complicated by the fact that:
1. When you return, the earth would be a few hundred thousand years older and would no longer be even close to the place where you left it.
2. You would have to survive sustained enormous acceleration and deceleration loads in order to continuously travel at near light speeds relative to your departure reference frame.
3. These acceleration and deceleration loads would have to be repeated at each of your stops if you actually wanted to stop and observe those objects.
4. The objects themselves would also experience a significant time dilation. By the time you reached the Horsehead, it would look like an Alligatorhead - and it would also be in a different location. The Omega Nebula might be gone by the time you get there.
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