Astronomy

laperouse
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Astronomy Sept 19, 2013 15:36:57 GMT 1

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Post by laperouse on Sept 19, 2013 15:36:57 GMT 1

Sept 19, 2013 13:32:17 GMT 1 @ravenslament said:

if a big enough piece of space rock was on a collision course with the earth i dont think we would be able to do a thing about it . we could not use any missles or rockets to stop it and any collision of any object over 35m would destroy a small town or city . even if there was a laser or something to destroy the object it would send fragments across the path of the earth and they would still fall to earth and possibly cause some damage or if lucky would burn in the earths atmosphere .

I know. So we must escape from here.

It's final time.
What is your proposal, concerning everything with the limiting aspects (radiation, gravity, temperature, distance, costs...),:
Mercury
Venus
Moon
Mars
Ganymede
Callisto
Europa
Titan
Something else...?

An impression of sound
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Astronomy Sept 19, 2013 18:50:04 GMT 1 laperouse and Jupitercrash like this

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Post by Deleted on Sept 19, 2013 18:50:04 GMT 1

with any space travel the effects of radiation , weightlessness and the length of time travelling in these conditions would have adverse effects on the body of humans and other living organisms so these would have to be addressed . i think any cataclysmic event on earth would or could have an effect on the moon so i would rule out the moon for colonisation. also even though we have early warning systems to predict any collision would we have enough time to evacuate every person , animal or insect off the planet ?

even though it would take time to reach , i think the only place we could go to is mars and there could only really be a collective amount of people that could colonise the planet , with transportation being the main obstacle , but before the colonisation , an infastructure would have to be in place . the infastructure would have to have the ideal living conditions for the living organisms that would live on mars . obviously the atmosphere and gravity would be artificial and water may be needed to be pumped from the poles or from any other source that may be found .

where ever we would be transported too we would have to advance in technology before we could travel that far , this must include engines that can produce more faster and efficient speeds through the vacuum of space ; bigger space crafts to transport everything needed on a new colony ; colonising and being self servicient over a period of time away from earth would be the main objective before any mass exodus and all this would come at a cost that would exceed any banking crisis or the grand total of all the debt in the world . let's hope that no space rock wings its way towards us in the near future .

Jupitercrash
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Astronomy Sept 19, 2013 19:00:11 GMT 1

Quote

Post by Jupitercrash on Sept 19, 2013 19:00:11 GMT 1

Sept 19, 2013 18:50:04 GMT 1 @ravenslament said:

with any space travel the effects of radiation , weightlessness and the length of time travelling in these conditions would have adverse effects on the body of humans and other living organisms so these would have to be addressed . i think any cataclysmic event on earth would or could have an effect on the moon so i would rule out the moon for colonisation. also even though we have early warning systems to predict any collision would we have enough time to evacuate every person , animal or insect off the planet ?

even though it would take time to reach , i think the only place we could go to is mars and there could only really be a collective amount of people that could colonise the planet , with transportation being the main obstacle , but before the colonisation , an infastructure would have to be in place . the infastructure would have to have the ideal living conditions for the living organisms that would live on mars . obviously the atmosphere and gravity would be artificial and water may be needed to be pumped from the poles or from any other source that may be found .

where ever we would be transported too we would have to advance in technology before we could travel that far , this must include engines that can produce more faster and efficient speeds through the vacuum of space ; bigger space crafts to transport everything needed on a new colony ; colonising and being self servicient over a period of time away from earth would be the main objective before any mass exodus and all this would come at a cost that would exceed any banking crisis or the grand total of all the debt in the world . let's hope that no space rock wings its way towards us in the near future .

wahou !!!!! you're really passionate, i don't know if i understood everything but i would like to know what you think of the comet that is heading towards the earth? this comet that nobody wants to talk !!!!!

Forget about stars for a while

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Astronomy Sept 19, 2013 19:29:34 GMT 1 Jupitercrash likes this

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Post by Deleted on Sept 19, 2013 19:29:34 GMT 1

we had panstarrs in march of this year

earthsky.org/space/comet-panstarrs-possibly-visible-to-eye-in-march-2013

and ison in november / december

www.spaceanswers.com/astronomy/2185/will-comet-ison-light-up-the-night-sky-in-late-2013/

but this one seems interesting but not coming near earth

Will comet 2013 A1 smash into the Martian surface in October 2014?

The Red Planet is set to get a close encounter of the cometary kind according to estimates of the latest trajectory of comet 2013 A1 (Siding Spring) by NASA’s NEO Program Office, which suggests that the comet will pass within 31,000 miles of the Martian surface in October 2014.

The comet, which is thought to have swung in from the Oort cloud – a spherical cloud of icy planetesimals almost a light year away from the Sun – was first spotted in January of this year by Scottish-Australian astronomer Robert McNaught of the Australian National University, using the Siding Spring Observatory. However, it was subsequently realised that images of comet Siding Spring had been made as far back as October 2012, providing enough data to make an estimate of its trajectory.

Building the dirty snowball’s path from old archives, scientists at the Near-Earth Object Program Office, who are behind the Near-Earth Object Observations program, also called ‘Spaceguard’, realised that the Red Planet, is right in the range of possible paths that the comet could take. However, experts predict that with further and further refinement of the data, an impact into Mars will become less and less likely. Currently there is a one in six hundred chance of the icy body crashing down into Martian soil after its journey, which is thought to have lasted more than a million years.

A computer graphic illustrating the orbit of comet 2013 A1 (Siding Spring) as it passes through the inner Solar System in October 2014.

However, scientists are currently hedging their bets on the comet passing within at least 186,000 miles and possibly closer – to within 31,000 miles – around two and a half times that of the orbit of the outermost martian moon, Deimos. Spaceguard, which uses an arsenal of both ground- and space-based telescopes, tracks and characterises asteroids and comets passing close to Earth, plotting their orbits to determine if they could pose a threat to our planet.

Unfortunately Earth’s comet watchers could be disappointed as the short-period comet will only be putting on a spectacular show for Mars. Hitting a total visual magnitude of zero or brighter in the Martian skies, which is equivalent to the fifth brightest star in the night sky – Vega in the constellation of Lyra or Saturn at its maximum – us Earthlings will find it more difficult to be able to see the comet.

In order to catch comet 2013 A1 at its closest approach towards the end of next year, observers are not only going to need to be in the southern hemisphere, but they will also need binoculars or a small telescope as this distant traveller is only expected to reach a dim magnitude of 8 – the same brightness as the 8th planet from the Sun, Neptune, at its best.

www.spaceanswers.com/news/2477/comet-set-to-get-up-close-and-personal-with-mars-in-october-2014/

Last Edit: Sept 19, 2013 19:30:47 GMT 1 by Deleted

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Astronomy Sept 19, 2013 19:40:29 GMT 1

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Post by Deleted on Sept 19, 2013 19:40:29 GMT 1

there was this asteroid that passed near earth in february

neo.jpl.nasa.gov/news/news177.html

and this one which i have just found out about

Asteroid Will Buzz Earth This Week Inside the Moon's Orbit

A tiny asteroid discovered just last week is set to zip by Earth on Wednesday (Sept. 18), passing between our planet and the moon. It is small enough and distant enough that it poses no threat to people, scientists say.

Astronomers first observed the space rock, named 2013 RZ53, on Friday (Sept. 13), according to data from the Minor Planet Center, a clearinghouse of information on comets and asteroids based in Cambridge, Mass.

The asteroid measures only 3 to 10 feet (1 to 3 meters) across, and it is expected to pass at a safe distance of more than 148,000 miles (230,800 kilometers) away from Earth when it makes its closest approach on Wednesday at 6:20 p.m. EDT (22:20 GMT). (The moon orbits Earth at an average distance of 239,000 miles, or 384,600 km.)

Even if it were aimed directly at our planet, the newly discovered space rock is so small that it would likely burn up in the atmosphere before it could hit the ground.

A tiny asteroid discovered just last week is set to zip by Earth on Wednesday (Sept. 18), passing between our planet and the moon. It is small enough and distant enough that it poses no threat to people, scientists say.

Astronomers first observed the space rock, named 2013 RZ53, on Friday (Sept. 13), according to data from the Minor Planet Center, a clearinghouse of information on comets and asteroids based in Cambridge, Mass.

The asteroid measures only 3 to 10 feet (1 to 3 meters) across, and it is expected to pass at a safe distance of more than 148,000 miles (230,800 kilometers) away from Earth when it makes its closest approach on Wednesday at 6:20 p.m. EDT (22:20 GMT). (The moon orbits Earth at an average distance of 239,000 miles, or 384,600 km.)

Even if it were aimed directly at our planet, the newly discovered space rock is so small that it would likely burn up in the atmosphere before it could hit the ground.

By observing the asteroid over several days, researchers pieced together its trajectory. They also put together an animation of asteroid 2013 RZ53's path, showing that it comes relatively close to Earth's orbit.

The space rock belongs to the Apollo family of near-Earth asteroids — the same group from which the meteor that exploded over the Russian city of Chelyabinsk in February 2013 is thought to have originated. The Russian meteor was much larger than the newly discovered asteroid, estimated to have been about 56 to 66 feet wide (17 to 20 m) before it exploded.

The discovery of 2013 RZ53 was made by researchers with the Mount Lemmon Survey at the University of Arizona. The project is part of a larger, NASA-sponsored program called the Catalina Sky Survey, which scans the cosmos for potentially dangerous asteroids.

NASA and its partners keep tabs on asteroids and comets that fly near the planet as part of the Near-Earth Object Observations program, which uses a network of ground-based and space telescopes to monitor potential threats

www.space.com/22818-asteroid-buzzing-earth-this-week-2013-rz53.html

Jupitercrash Bloodflowers member Some people are alive only because it's illegal to kill them Posts: 2,879	Astronomy Sept 19, 2013 19:43:55 GMT 1 laperouse likes this Quote Select Post Deselect Post Link to Post Member Give Gift Back to Top Post by Jupitercrash on Sept 19, 2013 19:43:55 GMT 1 Thanks for all informations i think i will focus on astronomy this famous comet, must touch the earth according some scientists..
	Forget about stars for a while

laperouse
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Astronomy Sept 20, 2013 12:06:25 GMT 1 Jupitercrash likes this

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Post by laperouse on Sept 20, 2013 12:06:25 GMT 1

Sept 19, 2013 19:43:55 GMT 1 Jupitercrash said:

Thanks for all informations i think i will focus on astronomy

this famous comet, must touch the earth according some scientists..

No, there is no comet on the collision course definitely.

en.wikipedia.org/wiki/Potentially_hazardous_object

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laperouse
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Bern

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Astronomy Sept 20, 2013 12:19:44 GMT 1

Quote

Post by laperouse on Sept 20, 2013 12:19:44 GMT 1

Sept 19, 2013 18:50:04 GMT 1 @ravenslament said:

with any space travel the effects of radiation , weightlessness and the length of time travelling in these conditions would have adverse effects on the body of humans and other living organisms so these would have to be addressed . i think any cataclysmic event on earth would or could have an effect on the moon so i would rule out the moon for colonisation. also even though we have early warning systems to predict any collision would we have enough time to evacuate every person , animal or insect off the planet ?

even though it would take time to reach , i think the only place we could go to is mars and there could only really be a collective amount of people that could colonise the planet , with transportation being the main obstacle , but before the colonisation , an infastructure would have to be in place . the infastructure would have to have the ideal living conditions for the living organisms that would live on mars . obviously the atmosphere and gravity would be artificial and water may be needed to be pumped from the poles or from any other source that may be found .

where ever we would be transported too we would have to advance in technology before we could travel that far , this must include engines that can produce more faster and efficient speeds through the vacuum of space ; bigger space crafts to transport everything needed on a new colony ; colonising and being self servicient over a period of time away from earth would be the main objective before any mass exodus and all this would come at a cost that would exceed any banking crisis or the grand total of all the debt in the world . let's hope that no space rock wings its way towards us in the near future .

I agree. It is not possible to do it fast, but we must spread to some other places as soon as possible to enlarge the chances of our survival as species. So, it really should be done until the end of this century no matter what the costs are, for, yes, we seem to be stupid enough even to destroy ourselves here, even without the help of some asteroid, comet etc.
Everything must be careful planned inside of the Solar System of course. I know that all "candidates" I mentioned on previous list have some huge issues, and therefore I can understand desire to search for "another Earth" around some stars that are in "proximity". Still, we are sooooo far away from the goal to have technical knowledge for travel there reasonably fast enough (if ever!?) that I really like to exclude such vision from logical planing, but that, unfortunately, already takes too much time, energy and resources. I even think that exploitation of Uranus or Neptune is too ambitious, end even system around Saturn is pretty far away for actual standards of Earth logistics. Therefore we must choose something more close and should try process of terraform (and that also will laaaaaaast, and it is hard to predict results) or simply we should try to build bases there with closed systems. I guess that Jovian satellites should be the place. spinning-smiley

An impression of sound
Then everything is gone
Forever

Deleted Posts: 0	Astronomy Sept 20, 2013 12:28:31 GMT 1 Quote Select Post Deselect Post Link to Post Member Give Gift Back to Top Post by Deleted on Sept 20, 2013 12:28:31 GMT 1 this thread is turning on "currently preparing to a global catastrophe" thread

steve Big Hand Songs Of A Lost World CRUMPET BOY Having trouble understanding Jane Posts: 56,734 Member is Online	Astronomy Sept 20, 2013 12:53:46 GMT 1 laperouse likes this Quote Select Post Deselect Post Link to Post Member Give Gift Back to Top Post by steve on Sept 20, 2013 12:53:46 GMT 1 Let's hope there isn't an asteroid on collision course. Can't bear the thought of hearing that gosh-awful Aerosmith ballad ever again.
	Tear out the pages with all the bad news

Jupitercrash
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Astronomy Sept 20, 2013 17:26:42 GMT 1 laperouse likes this

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Post by Jupitercrash on Sept 20, 2013 17:26:42 GMT 1

Sept 20, 2013 12:06:25 GMT 1 laperouse said:

Sept 19, 2013 19:43:55 GMT 1 Jupitercrash said:

Thanks for all informations i think i will focus on astronomy

this famous comet, must touch the earth according some scientists..

No, there is no comet on the collision course definitely.

en.wikipedia.org/wiki/Potentially_hazardous_object

It read your link, thanks ,

here it turns into 'panic' ( it was several months ago) if you listened media, you have more than done your prayers and wait until the comet reach the earth, not to mention they nasa who know but that they hide their information for not scare population true I DONT KNOW and i think noooooooooooooooot
nobody ever heard of this story , I feel I come from another planet, saying that
btw I just from Jupiter

it was polemical for some time, until the media talk about unemployment
we see the priority of people

Forget about stars for a while

Pipperoo Big Hand Songs Of A Lost World Moon Moderator Posts: 19,100	Astronomy Sept 21, 2013 1:13:32 GMT 1 steve, laperouse, and 2 more like this Quote Select Post Deselect Post Link to Post Member Give Gift Back to Top Post by Pipperoo on Sept 21, 2013 1:13:32 GMT 1 I love this thread. the best gif ever... lol
	"The moon will change your mind."

Deleted Posts: 0	Astronomy Sept 21, 2013 15:39:55 GMT 1 Jupitercrash likes this Quote Select Post Deselect Post Link to Post Member Give Gift Back to Top Post by Deleted on Sept 21, 2013 15:39:55 GMT 1 Sept 21, 2013 1:13:32 GMT 1 Pipperoo said: I love this thread. the best gif ever... lol wow

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Astronomy Sept 21, 2013 19:04:48 GMT 1 laperouse and Jupitercrash like this

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Post by Deleted on Sept 21, 2013 19:04:48 GMT 1

A rocky region of Portinho da Arrábida, Portugal, with the center of the Milky Way behind it, becomes visible at dawn — almost in the daylight — with the stars of Sagittarius and Scorpius clearly visible. At the same time, the sky slowly is turning blue. The brightest star, the red supergiant Antares (Alpha Scorpii), shines to the right of center. (Canon 60Da DSLR, 24mm lens at f/2.8, ISO 1600, 15-second exposure)

www.astronomy.com/

Last Edit: Sept 21, 2013 19:05:54 GMT 1 by Deleted

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Astronomy Sept 21, 2013 19:07:33 GMT 1 laperouse and Jupitercrash like this

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Post by Deleted on Sept 21, 2013 19:07:33 GMT 1

Astronomy Photographer of the Year Announced

Guiding Light to the Stars: The skies of the Southern Hemisphere offer a rich variety of astronomical highlights. The central regions of the Milky Way Galaxy, 26,000 light years away, appear as a tangle of dust and stars in the central part of the image. Two even more distant objects are visible as smudges of light in the upper left of the picture. These are the Magellanic Clouds, two small satellite galaxies in orbit around the Milky Way.

Last Edit: Sept 21, 2013 19:09:42 GMT 1 by Deleted

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