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Hyperbolic Orbits Hyperbolic Orbits

Does Jupiter give comets in elliptical orbits enough energy to put them into hyperbolic orbits where they will loop around the sun and then be thrown out the solar system... or have I misunderstood :L
Read more : Hyperbolic Orbits | Views : 1028 | Replies : 1


Why do some stars twinkle?

Hello everyone, my first post..

Ok, when I say twinkle, I mean, when looking at a couple of stars even without a telescope, they seem to changing colour or sparkling or something.When I was setting up my scope last night, I noticed a star in the south doing this.. Later on, I noticed Capella too was doing the same, when I focused on it, sure enough it looked to be revolving in colour, mainly yellow ...
Read more : Why do some stars twinkle? | Views : 1458 | Replies : 4


Dust cloud and Black Hole Sagitarius A (?)

What happened with regards to the dust cloud that was heading towards the black hole at the centre of the Milky Way?

....never heard anything more - anyone know what happened?
Read more : Dust cloud and Black Hole Sagitarius A (?) | Views : 981 | Replies : 1


Help! Jupiter deflecting meteoroids.

Hey, I am doing an EPQ project about how Jupiter can deflect meteoroids but I am struggling with the research. If anyone knows of any books or other resources on the topic can you please tell me. Thank :| you!
Read more : Help! Jupiter deflecting meteoroids. | Views : 913 | Replies : 0


Gravitational Lensing

MS0735_grav_lenskris.jpg
I was watching this doco on "The largest Black holes in the universe" on you tube in 480p resolution.
I noticed a very large distortion within the grainy low res image at 16:12 / 24:58 mins . It appears to be some kind of lensing effect or photo manipulation... Can you help me find out the answer ? Picture is at 16:12 / 24:58mins

I'm currently looking for the actual image ...
Read more : Gravitational Lensing | Views : 897 | Replies : 1


Gravitational Lensing

I was watching this doco on "The largest Black holes in the universe" on you tube in 480p resolution.
I noticed a very large distortion within the grainy low res image at 16:12 / 24:58 mins . It appears to be some kind of lensing effect or photo manipulation... Can you help me find out the answer ? Picture is at 16:12 / 24:58mins

I'm currently looking for the actual image and look for myself, ...
Read more : Gravitational Lensing | Views : 771 | Replies : 0


saturn still looking good

well its been a few weeks now stood in the garden looking at saturn and mars, got a good look at them with the young one as we have been getting setup for around 10:30 and spending an hr - hr and a half looking at the 2 and going over with the young one why the rings are tilting now compared to lying reasonably flat when we started a few weeks ago and the ...
Read more : saturn still looking good | Views : 897 | Replies : 2


Detecting changes in a nebula

Hi,

With the fabulous images that are now able to be produced, I was wondering if it would be possible to detect subtle changes in clouds of nebula gas and dust over long periods of time.

Thanks.
Read more : Detecting changes in a nebula | Views : 846 | Replies : 1


Can I use Fuji finepix for night star photography

Hiya, there

Can I use my Fuji finepix S4400 camera, camera mounted for night time star photography?
Read more : Can I use Fuji finepix for night star photography | Views : 1827 | Replies : 6


Does Dark Energy Really Exist? Does Dark Energy Really Exist?

Dark energy is a hypothetical form of energy that is supposed to permeate all of space and tends to accelerate the expansion of the universe. Apparently it's only a mathematical construct to make the formulas balance and to account for the missing mass in the universe and the observations. Nobody has detected dark energy yet and the exact physics behind it remains unknown. Well I don't believe it exists as I have a better theory. ...
Read more : Does Dark Energy Really Exist? | Views : 1391 | Replies : 6


 

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