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ChaosEngine (Member Profile)

Things Every Person Should Know About Astronomy #1

BicycleRepairMan says...

Fact 1: An estimated (the number may be higher) 1.6 planets per star in our galaxy
http://www.space.com/14200-160-billion-alien-planets-milky-galaxy.html

Fact 2: 100 billion galaxies:
We know there are that many, because we've seen them. The hubble space telescope was pointed at a tiny , random black spot in the sky (where no stars from our own galaxy was blocking the field of view) and found 10000 galaxies in that tiny spot about 1/12millionth of the sky. Extrapolating that out, we get that there are atleast 100 billion galaxies, and each of them contains hundreds of millions of stars.

Fact 3:The moon has its own gravity.
Well duh...

Fact 4: 8 Planets in our solar system.
This is of course very well documented. You can see several of them on any given night. One of them , Venus will infact pass directly in front of the sun in a few days, on the 6th of June! That also happened in 2004, but the next one wont be for another 105 years! http://en.wikipedia.org/wiki/Transit_of_Venus

Fact 5: There were galaxies in the early universe. These have been seen by the Hubble telescope and other observatories:http://en.wikipedia.org/wiki/Galaxy_formation_and_evolution

Fact 6:The earths tilted axis causes seasons: http://www.khanacademy.org/science/cosmology-and-astronomy/v/how-earth-s-tilt-causes-seasons

More later..

New Space Telescope launched, 1000 times sharper than Hubble

rychan says...

>> ^eric3579:

The very high angular resolving power will be achieved when used in conjunction with a ground-based system of radio-telescopes and interferometrical methods, operating at wavelengths of 1.35–6.0, 18.0 and 92.0 cm. With its Earth-based companions, it will form a network able to provide detailed images of the universe at 1,000 times the resolution attainable using the Hubble Space Telescope. -wiki
>> ^rychan:
>> ^rich_magnet:
The title is quite misleading. Hubble is a visible/UV telescope, where this one is a radio telescope. They image completely different parts of the spectrum. Think of the comparison of the ground-based VLA and VLT telescopes: quite different instruments.

Yeah, how can any radio telescope be remotely as sharp as a visible light telescope? At that frequency it's hard to get high angular resolution from a single dish.



Ok, that's believable. But the title and summary clearly imply that this single instrument will be 1,000 times sharper than the HST.

New Space Telescope launched, 1000 times sharper than Hubble

eric3579 says...

The very high angular resolving power will be achieved when used in conjunction with a ground-based system of radio-telescopes and interferometrical methods, operating at wavelengths of 1.35–6.0, 18.0 and 92.0 cm. With its Earth-based companions, it will form a network able to provide detailed images of the universe at 1,000 times the resolution attainable using the Hubble Space Telescope. -wiki

>> ^rychan:

>> ^rich_magnet:
The title is quite misleading. Hubble is a visible/UV telescope, where this one is a radio telescope. They image completely different parts of the spectrum. Think of the comparison of the ground-based VLA and VLT telescopes: quite different instruments.

Yeah, how can any radio telescope be remotely as sharp as a visible light telescope? At that frequency it's hard to get high angular resolution from a single dish.

Christy Crunch is full of HST but comes with a free train!

Christy Crunch is full of HST but comes with a free train!

kronosposeidon (Member Profile)

ponceleon says...

Hehe... thx man. Gotta love teh hubble!

In reply to this comment by kronosposeidon:
Upvote for "Satan's penis." With such a massive tool, no wonder bad boys are popular with the ladies.

In reply to this comment by ponceleon:
The hubble space telescope is Satan's penis, used by atheist scientist to spread their so-called science. If god wanted us to put things in space, he would have created ladder-trees that reached that high so we could climb up there and look with intelligently designed space-seeing-eyes.

Utter rubbish!! Heresy too!

ponceleon (Member Profile)

kronosposeidon says...

Upvote for "Satan's penis." With such a massive tool, no wonder bad boys are popular with the ladies.

In reply to this comment by ponceleon:
The hubble space telescope is Satan's penis, used by atheist scientist to spread their so-called science. If god wanted us to put things in space, he would have created ladder-trees that reached that high so we could climb up there and look with intelligently designed space-seeing-eyes.

Utter rubbish!! Heresy too!

Hubblecast 27: What has Hubble taught us about the planets?

ponceleon says...

The hubble space telescope is Satan's penis, used by atheist scientist to spread their so-called science. If god wanted us to put things in space, he would have created ladder-trees that reached that high so we could climb up there and look with intelligently designed space-seeing-eyes.

Utter rubbish!! Heresy too!

The Hubble floats away from the Space Shuttle Atlantis

Hubble directly observes planet orbiting Fomalhaut

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