Orbiter-Forum KIC 8462852 (Tabby's Star) Faded Throughout the Kepler Mission
 Register Blogs Orbinauts List Social Groups FAQ Projects Mark Forums Read

 Astronomy & the Night Sky Astronomy news & discussions, Astrophotography, Telescopes, Star Charts, & more. Galaxies, Stars, Planets & Moons, discuss it all here!

 10-16-2015, 11:37 PM #31 Cairan Donator Using 2 online calculators, I got an orbital distance of 1.8 AU from the star with a period of 750 days. Using the star's luminosity and temperature, I get a planetary equilibrium temperature of 279 K... If anyone wants to crush the numbers, please do... i find these values... fascinating.
 Thanked by:
 10-17-2015, 07:05 AM #32 Quick_Nick Passed the Turing Test Quote: Originally Posted by Cairan  Using 2 online calculators, I got an orbital distance of 1.8 AU from the star with a period of 750 days. Using the star's luminosity and temperature, I get a planetary equilibrium temperature of 279 K... If anyone wants to crush the numbers, please do... i find these values... fascinating. That would be the right orbital distance. For equilibrium temperature, I got something much lower but did get around 279 W/m^2 (probably coincidence?). I don't know how/why you used temperature of the star though, rather than just luminosity. At 20% of the Earth's solar irradiance, I could see why the aliens might have need for a Dyson structure. Last edited by Quick_Nick; 10-17-2015 at 07:10 AM.
 10-17-2015, 08:25 AM #33 Cairan Donator One calculator used luminosity, the other the star's radius and temperature... will updatewith links when I'm on my computer.
 10-18-2015, 08:59 PM #34 steph Orbinaut What light dip is this for ? The 22% one? Since they're not exactly cyclical....
 10-18-2015, 10:37 PM #35 garyw O-F Administrator Quote: Originally Posted by Artlav  A lot of technology is dictated by the laws of physics. The shapes and brands might be different, but basic ideas would very likely be similar. And pretty much all technology is dictated by energy. The more tech, the more energy you need so, one of the best places to get energy from is the star which is why solar collectors and dyson spheres are popular ideas. Anyway, for this star could it not be a mass of objects in an orbit similar to the oort cloud but perhaps bigger? Could it not be a destroyed planet? There are so many potential explanations that to go "aliens!" is a bit silly
 Thanked by:
 10-19-2015, 12:23 AM #36 Cairan Donator Quote: Originally Posted by steph  What light dip is this for ? The 22% one? Since they're not exactly cyclical.... The 22% one is, per the article, on an approximately 750 day cycle. The whole bunch of random dips are not cyclical.
 10-19-2015, 01:19 AM #37 fsci123 Future Dubstar and Rocketkid Quote: Originally Posted by garyw  And pretty much all technology is dictated by energy. The more tech, the more energy you need so, one of the best places to get energy from is the star which is why solar collectors and dyson spheres are popular ideas. Anyway, for this star could it not be a mass of objects in an orbit similar to the oort cloud but perhaps bigger? Could it not be a destroyed planet? There are so many potential explanations that to go "aliens!" is a bit silly Wouldnt a destroyed planet show a constant dip in light rather than several intense peaks. Unless it fractured into chunks and that seems to be impossible from my knowledge.
 10-19-2015, 01:35 AM #38 Cairan Donator Quote: Originally Posted by fsci123  Wouldnt a destroyed planet show a constant dip in light rather than several intense peaks. Unless it fractured into chunks and that seems to be impossible from my knowledge. Not only that, but the paper underlines that they don't think it's that, because of the lack of a planetary christmas tree lit up in infrared in the system one would expect from a massive collision.
 Thanked by:
 10-19-2015, 09:33 AM #39 steph Orbinaut I was reading a topic on this on the AboveTopSecret forum (tinfoil crowd, I know, but I was curious about how they react) and someone mentioned how nice it would have been if Carl Sagan were still alive now to witness this. Then again, just wait until the likes of Neil deGrasse Tyson, Michio Kaku or Stephen Hawking get a hold of this news.
 Thanked by:
 10-19-2015, 11:09 AM #40 boogabooga Bug Crusher I was also wondering what would Carl Sagan say. I suspect it would be a perfect balance of rational skepticism and excitement at the possibility. Probably no one wanted to fill in the first entry of Encyclopedia Galactica more than him.
 Thanked by:
 10-19-2015, 09:06 PM #41 Proximus Orbinaut Quote: Originally Posted by Cairan  Using 2 online calculators, I got an orbital distance of 1.8 AU from the star with a period of 750 days. Using the star's luminosity and temperature, I get a planetary equilibrium temperature of 279 K... If anyone wants to crush the numbers, please do... i find these values... fascinating. So.... It's possibly in the Goldilocks zone, if that even applies here?
 10-20-2015, 01:38 AM #42 Keatah Orbinaut Kinda reminiscent of Percival Lowell's canals on Mars. Heady stuff for the time.
 Thanked by:
 10-29-2015, 11:45 AM #43 steph Orbinaut So....is it certain that we can rule out the Great Old Ones?
 Thanked by:
 11-07-2015, 06:45 PM #44 Mister Kite discipulus in perpetuum Quote: Originally Posted by steph  So....is it certain that we can rule out the Great Old Ones? Most likely: http://arxiv.org/abs/1511.01606
 Thanked by:
 11-07-2015, 07:12 PM #45 Cairan Donator Quote: Originally Posted by Mister Kite  Most likely: http://arxiv.org/abs/1511.01606 Quote: This report represents a first survey placing upper limits on anomalous flux from KIC 8462852. We expect that this star will be the object of additional observations for years to come. They just put an upper bound on microwave emissions, that doesn't mean there is nothing there, just that we can rule out microwaves blasting out from this star...
 Thanked by:

 Posting Rules BB code is On Smilies are On [IMG] code is On HTML code is Off You may not post new threads You may not post replies You may not post attachments You may not edit your posts
 Forum Jump User Control Panel Private Messages Subscriptions Who's Online Search Forums Forums Home Orbiter-Forum.com     Announcements     Meets & Greets Orbiter Space Flight Simulator     Orbiter Web Forum         OFMM         Orbiter Forum Space Station         Simpit Forum     General Questions & Help     MFD Questions & Help     Hardware & Software Help     Tutorials & Challenges     Orbiter SDK     Orbiter Visualization Project     Orbiter Beta » Orbiter Project Orbiter Addons     OrbitHangar Addons & Comments     Addons     Addon Development     Addon Requests     Addon Support & Bugs         Addon Developer Forums             Project Apollo - NASSP     Orbiter Lua Scripting Far Side of the Moon     Spaceflight News     Math & Physics     Astronomy & the Night Sky     Backyard Rocketry     Brighton Lounge     International Forum

All times are GMT. The time now is 06:22 PM.