Old Man Posted September 30, 2010 Report Share Posted September 30, 2010 Re: Exoplanet detection news In a century or two' date=' that should be within the average lifespan. Sweet! [/quote'] The exact travel time isn't as important in my case since I'm immortal. Apparently the planet has already been named "Gloaming", though by whom, I don't know. AFAIC if I get there first I get to call it whatever I want. Quote Link to comment Share on other sites More sharing options...
austenandrews Posted September 30, 2010 Report Share Posted September 30, 2010 Re: Exoplanet detection news Gloaming is cool too. Quote Link to comment Share on other sites More sharing options...
Cancer Posted September 30, 2010 Author Report Share Posted September 30, 2010 Re: Exoplanet detection news It's better than, say, "Barstow" or "Newark" or "Joliet" or "Fort Stockton". Quote Link to comment Share on other sites More sharing options...
Lucius Posted September 30, 2010 Report Share Posted September 30, 2010 Re: Exoplanet detection news An Orion might be able to get up to 10% of c' date=' so it's only 200 years away.[/quote'] Given time dilation effects, how long is that for the people actually making the trip? Lucius Alexander Measures all things relative to the palindromedary Quote Link to comment Share on other sites More sharing options...
Captain Obvious Posted September 30, 2010 Report Share Posted September 30, 2010 Re: Exoplanet detection news Given time dilation effects, how long is that for the people actually making the trip? Lucius Alexander Measures all things relative to the palindromedary Still over 190 years, if I'm not mistaken. Which, I guess, means you can spend a few years at the rest stop and it won't really matter. Quote Link to comment Share on other sites More sharing options...
McCoy Posted September 30, 2010 Report Share Posted September 30, 2010 Re: Exoplanet detection news Given time dilation effects, how long is that for the people actually making the trip? Lucius Alexander Measures all things relative to the palindromedary IIRC, it's been a while since I've done the math, time dilation isn't that significant until you get above .7 c. Quote Link to comment Share on other sites More sharing options...
dmjalund Posted October 1, 2010 Report Share Posted October 1, 2010 Re: Exoplanet detection news but I'm sure we could achieve a suspended animation between now and then Quote Link to comment Share on other sites More sharing options...
Old Man Posted October 1, 2010 Report Share Posted October 1, 2010 Re: Exoplanet detection news It's better than' date=' say, "Barstow" or "Newark" or "Joliet" or "Fort Stockton".[/quote'] "New Barstow" FTW! Quote Link to comment Share on other sites More sharing options...
Markdoc Posted October 1, 2010 Report Share Posted October 1, 2010 Re: Exoplanet detection news I'm rather fond of "Great Cockup" from England's Lake District Or the ever-popular but NSFW Fucking, Austria cheers, Mark Quote Link to comment Share on other sites More sharing options...
Old Man Posted October 1, 2010 Report Share Posted October 1, 2010 Re: Exoplanet detection news Well, now that we've found another possibly habitable world, I think we should waste no time in screwing it up. What's stopping a billionaire from sending their own space probe full of robotic oil drilling rigs and genetically modified kudzu? Quote Link to comment Share on other sites More sharing options...
Captain Obvious Posted October 1, 2010 Report Share Posted October 1, 2010 Re: Exoplanet detection news Who's to say kudzu will even survive there? It might be daisies or tomatoes or clover that goes nuts growing in those conditions and won't be eaten by the native life. Quote Link to comment Share on other sites More sharing options...
Old Man Posted October 2, 2010 Report Share Posted October 2, 2010 Re: Exoplanet detection news Bermuda grass then. That stuff grows like crazy anywhere it's not supposed to. Quote Link to comment Share on other sites More sharing options...
Old Man Posted October 2, 2010 Report Share Posted October 2, 2010 Re: Exoplanet detection news But wait! Now it's named Zarmina! Quote Link to comment Share on other sites More sharing options...
Xavier Onassiss Posted October 2, 2010 Report Share Posted October 2, 2010 Re: Exoplanet detection news Who's to say kudzu will even survive there? It might be daisies or tomatoes or clover that goes nuts growing in those conditions and won't be eaten by the native life. Cap, this is KUDZU we're talking about here: the plant kingdom's answer to cockroaches. It grows so fast it might get to gleise 581 before we do. Never doubt the power of kudzu. Quote Link to comment Share on other sites More sharing options...
Lucius Posted October 2, 2010 Report Share Posted October 2, 2010 Re: Exoplanet detection news But wait! Now it's named Zarmina! "Maybe you won't be filming Corona commercials on the beach there but it will be life." Lucius Alexander But can a palindromedary survive there? Quote Link to comment Share on other sites More sharing options...
Lucius Posted October 2, 2010 Report Share Posted October 2, 2010 Re: Exoplanet detection news Cap, this is KUDZU we're talking about here: the plant kingdom's answer to cockroaches. It grows so fast it might get to gleise 581 before we do. Never doubt the power of kudzu. I hope not. It's called "Foot a day vine" and I have read that sometimes it can double even that. That's a very impressive plant, but even so, I figure it would take billions of years to reach the Gliese system at that rate. Lucius Alexander The palindromedary recommends adding Megascale to the plant's Growth Quote Link to comment Share on other sites More sharing options...
Querysphinx Posted October 2, 2010 Report Share Posted October 2, 2010 Re: Exoplanet detection news Sitting here wondering just how frigging hard it would be to hit that planet with say a probe even if we could get a meaningful probe up to .1 c. Quote Link to comment Share on other sites More sharing options...
Tasha Posted October 2, 2010 Report Share Posted October 2, 2010 Re: Exoplanet detection news I also thought that it was interesting that he was looking at a gaggle of the nearest Red Dwarf stars for earthlike exoplanets. Perhaps he will find one that's even better than Zarmina. It's kind like the Guy that runs the Oz SETI project who is looking in the same neighborhood for stars emiting light in the laser spectrum, that might contain some sort of signal. We live in very interesting times. Quote Link to comment Share on other sites More sharing options...
Xavier Onassiss Posted October 2, 2010 Report Share Posted October 2, 2010 Re: Exoplanet detection news I hope not. It's called "Foot a day vine" and I have read that sometimes it can double even that. That's a very impressive plant, but even so, I figure it would take billions of years to reach the Gliese system at that rate. Lucius Alexander The palindromedary recommends adding Megascale to the plant's Growth That's two feet a day in normal gravity. But if that stuff figures out how to reach orbit, watch out. I'm just sayin'. Quote Link to comment Share on other sites More sharing options...
L. Marcus Posted October 2, 2010 Report Share Posted October 2, 2010 Re: Exoplanet detection news ... Super Mario Bros. ^^ Quote Link to comment Share on other sites More sharing options...
The Weapon Posted October 3, 2010 Report Share Posted October 3, 2010 Re: Exoplanet detection news I'm rather fond of "Great Cockup" from England's Lake District Or the ever-popular but NSFW Fucking, Austria cheers, Mark That's what the Germans said when they gave them that megalomaniac that thought he was a painter. Quote Link to comment Share on other sites More sharing options...
The Weapon Posted October 3, 2010 Report Share Posted October 3, 2010 Re: Exoplanet detection news IIRC' date=' it's been a while since I've done the math, time dilation isn't that significant until you get above .7 c.[/quote'] At 10% it's Sqrt(1-(10%)^2) ~= .95. I tried to upload a spreadsheet but I'm having problems. So here's a few values. Fraction of c Time dilation Mass inc. 0.01___ 0.999949999___1.00005 0.02___0.99979998___1.0002 0.03___0.999549899 ___ 1.00045 0.04___0.9919968___ 1.000801 0.05___0.998749218___1.001252 0.06___0.998198377___1.001805 0.07___ 0.997546991___1.002459 0.08___ 0.996794864___1.003215 0.09___0.995941765___1.004075 0.1___0.994987437___ 1.005038 0.15___ 0.988685997___1.011443 0.2 ___0.979795897___ 1.020621 0.25___ 0.968245837___1.032796 0.3___ 0.953939201___ 1.048285 0.35___0.9367497___1.067521 0.4___ 0.916515139___1.091089 0.45___0.893028555___1.119785 0.5___ 0.866025404___ 1.154701 0.55___ 0.835164654___1.197369 0.6___ 0.8___________ 1.25 0.65___ 0.759934208 ___ 1.315903 0.7___0.714142843_____1.40028 0.75___ 0.661437828____1.511858 0.8___ 0.6____________1.666667 0.85__ 0.526782688______1.898316 0.9__ 0.435889894______ 2.294157 0.95__0.3122499________ 3.202563 0.96__0.28____________3.571429 0.97__ 0.243104916______4.11345 0.98__0.198997487 ______5.025189 0.99__ 0.14106736______7.088812 Quote Link to comment Share on other sites More sharing options...
L. Marcus Posted October 3, 2010 Report Share Posted October 3, 2010 Re: Exoplanet detection news That'd be sqrt (1 - (0.1^2/1^2)) = sqrt (1 - 0.01) = sqrt (0.99), which is as close to 1 as makes not much practical difference. 0.7 c would give sqrt (1 - (0.7^2/1^2)) = sqrt (1 - 0.49) = sqrt 0.51, which rounds off as 0.71. If we say that a time dilation of 0.95 would be the limit of humans noticing it, that'd give a speed of about 0.31c. Quote Link to comment Share on other sites More sharing options...
Cancer Posted October 4, 2010 Author Report Share Posted October 4, 2010 Re: Exoplanet detection news Sitting here wondering just how frigging hard it would be to hit that planet with say a probe even if we could get a meaningful probe up to .1 c. Well, the system is 6.7 parsecs away. That means that the 0.3 AU orbit of the planet subtends 0.045 arc seconds as seen from here. You can't really reach that aiming precision from earth's surface, but from space it's easy. Hubble Space Telescope can do that routinely, and frankly, that's tech from circa 1980. So you can aim at the planet orbit from here pretty easily. Aiming at a particular location within that orbit is something else, but you have see where the moons and asteroids belts are from closer in before you can make a safe rendezvous. Quote Link to comment Share on other sites More sharing options...
Cancer Posted October 4, 2010 Author Report Share Posted October 4, 2010 Re: Exoplanet detection news "Maybe you won't be filming Corona commercials on the beach there but it will be life." Lucius Alexander But can a palindromedary survive there? Is that ads for Corona Borealis or Corona Australis? Quote Link to comment Share on other sites More sharing options...
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