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/sci/ - Science & Math


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File: 46 KB, 1280x720, super-earth-proxima-centauri.jpg [View same] [iqdb] [saucenao] [google]
12474322 No.12474322 [Reply] [Original]

https://arxiv.org/pdf/2005.12114v1.pdf

>We find evidence for a second short period signal with a period of 5.15 days and a semi-amplitude of 0.4m·s−1. If caused by a planetary companion, it would correspond to a minimum mass of 0.29 ± 0.08 M⊕ at an orbital distance of 0.02895 ± 0.00022 AU, with an equilibrium temperature of 330 ± 30 K

proxima centauri D not B

Its 4 light years away orbiting the closest star to earth, using project Orion we could get there in 20-40 years. despite not being in the habitable zone 10-20% of its surface area would be 0-40 Celsius due to being tidally locked. it likely has a thick abiotic oxygen atmosphere. 60% earth gravity.

>> No.12474326
File: 227 KB, 1382x983, proxima d.jpg [View same] [iqdb] [saucenao] [google]
12474326

>>12474322
heres a simple temperature simulation i did on the planet

>> No.12474333

What a shithole.

>> No.12474335

>>12474322
>red dwarf
There goes the habitability

>> No.12474368

>>12474335
why? the whole "flare stars hur dur" is a fucking meme, neither uv c or xrays penetrate past the upper atmosphere, it does NOT impact surface level habitability

>> No.12475042

>>12474322
bump

>> No.12475810 [DELETED] 

>>12474322
Isn't that paper from 2005?

>> No.12475823

>>12474322
time to shoot some relativistic speed probes towards that system

>> No.12475882

>>12474368
i thought it had to do with red dwarfs gradually stripping away planet atmospheres at higher rates than other stars

>> No.12475895

>>12474322
>thick abiotic oxygen atmosphere
Imagine the bushfires

>> No.12475929

>>12474368
It will destroy the atmosphere you retard. And given that this place is tidally locked and smaller than earth that means it’s magnetosphere is probably weaker which means it’s even more likely to have any atmosphere blown into space by the solar winds.

>> No.12475935

Neat. So it will take couple hundred thousand years to get there.

>> No.12476365

>>12474322
It would be a thin atmosphere rock.
Literally a tidally locked Mars.
Waste of time.

>> No.12476369

>>12474322
>4 light years away

What's the fucking point

>> No.12476374
File: 237 KB, 379x429, 1607357031230.png [View same] [iqdb] [saucenao] [google]
12476374

>>12474322
>Its 4 light years away orbiting the closest star to earth, using project Orion we could get there in 20-40 years
So, we need nukes, spaceships knowledge and an strong industrial base to make the spaceships.
There`s only one country that can do that.
Pic related.

>> No.12476377
File: 107 KB, 1000x1000, IU4jsYp0q7VesuGfrKEI.png [View same] [iqdb] [saucenao] [google]
12476377

>>12475935
>using project Orion we could get there in 20-40 years

>> No.12476394 [DELETED] 
File: 63 KB, 500x333, 2016-10-04-1475553407-393127-chinesenationalpride-thumb.jpg [View same] [iqdb] [saucenao] [google]
12476394

The coming Pax Sinica will be blessing upon the world. Clean, modern cities that are safe to live in, modern fast transport infrastructure, space colonies on the Moon and Mars.
Thanks to China we will be living in Star Trek future. I am sure with time they will offer to clean up American and West European cities too just like they are doing to Africa.
I am moving to China next year and plan on having Chinese wife and hapa kids. I hope they and their descendants will be integrated into Chinese society eventually.
West had its day but it is clear it has now passed its usefulness to human race.
By having Chinese children I will be certain my progeny one day will stand on the surface of Mars, Ceres, Titan and Alpha Centauri B, while America will be treated like ZOO and Europe as tourist attraction at best.
The future belongs to Asia
Search your hearts, you know this to be true

>> No.12476402

>>12474322

>eyeball planet

So if we find intelligent life there its just more refugees fleeing their horrid shithole.

>> No.12476414

>>12474322
>it likely has a thick abiotic oxygen atmosphere.

[x]doubt

>> No.12476545

>>12476377
yeah and if we use Stargates we can get there in 30 seconds!!!!!

>> No.12476770

>>12476545
Orion was tested, stargates were not.

>> No.12476891

how long would it take to travel there at warp 4 ?

>> No.12477180
File: 142 KB, 1080x1349, 1i2.jpg [View same] [iqdb] [saucenao] [google]
12477180

>>12476394
this but unironically

>> No.12477226

>>12477180
pax boobica

>> No.12477239

>>12474368
It does when the gravity is 6 ms-2 and the orbit is sun-facing all the time. There's no magnetic field here.
This place is not holding its atmosphere.

>> No.12477249

>>12476770
Orion is good for getting off our own gravity well. Great, actually.
To get to another solar system I think we'd prefer something more efficient at ejecting propellant in space.
So: use Orion to assemble such a starship in, say, EarthLuna L1. Shift it around with shitty chemical rockets to ELL2. Fire THAT puppy up in Proxima's direction.
As for what the starship (which isn't Orion) is, Zubrin's saltwater engine looked good.

>> No.12477509

>>12476374
>>12476394
Can't tell if troll of just ungodly retarded

>> No.12477523

>>12474322
spectra or GTFO

>> No.12478867

>>12477249
Interstellar travel requires beamed propulsion. Possibly ram-augmented. There's no way to achieve adequate speeds without offloading some of the propulsion apparatus back to the home system.

>> No.12478868

>>12476374
Chink nukes are just paper mache spheres full of garbage.

>> No.12478871

>>12475823
A solar gravitational lens probe can get 10km resolution images right away.
https://www.centauri-dreams.org/2020/12/16/jpl-work-on-a-gravitational-lensing-mission/

>> No.12479738

>>12475929
>It will destroy the atmosphere you retard. And given that this place is tidally locked and smaller than earth that means it’s magnetosphere is probably weaker which means it’s even more likely to have any atmosphere blown into space by the solar winds.

A radio signal has been detected from the Proxima System.

https://www.theguardian.com/science/2020/dec/18/scientists-looking-for-aliens-investigate-radio-beam-from-nearby-star

>> No.12480233

>>12479738
Stop reading popsci.

>> No.12480321
File: 9 KB, 241x209, images.jpg [View same] [iqdb] [saucenao] [google]
12480321

>>12476891
>warp 4
Warp 4 is about 100x the speed of light, Proxima Centauri is about 4.2 ly away, so it would take a little over 4 days or so. Warp is actually relatively slow until you hit about warp 6 or so.

>> No.12480323

>>12480321
For reference
https://www.youtube.com/watch?v=iSyfpUyzQGU

>> No.12480354
File: 177 KB, 900x582, 2011-08-01-The-Smartest-Klingon.jpg [View same] [iqdb] [saucenao] [google]
12480354

>>12480321
>>12480323
Shit my math was off, it's about 15 days, give or take about 12 hours.

Still, not as fast as the ST shows would have you think.

>> No.12480355

>>12475882
that's red giants, dunce

>> No.12480359
File: 29 KB, 256x256, burning dog.jpg [View same] [iqdb] [saucenao] [google]
12480359

>>12474322

>330 ± 30 K

>> No.12480407

>>12480321
The warp 10 = infinity is such a dumb way of measuring speed. They should have just stuck with some kind of exponential like a basic logarithmic increase of 1 in scale is 10 times faster.

>> No.12480445

>>12476369
the fastest manmade object, Helios 2, travelled 157,000 mph at its peak
That is approx. 70,000m/s, or 0.02% the speed of light
It would take 17,000 years for a probe travelling at that speed to reach any member of alpha centauri (A, B, C)

On the plus side, 2 of our 3 nearest neighbors are sun-like and have a binary orbit, so it may well be worth it. Imagine hearing reports from a 17,000 year old ancient civ. probe

>> No.12480450

>>12477239
>There's no magnetic field here.
I thought tidally locked objects got torn up by gravity, like Io?

>> No.12480461

>>12480450
Moon is also tidally locked. They only get torn up if they are within the roche limit

>> No.12480494
File: 219 KB, 506x393, thorwald.png [View same] [iqdb] [saucenao] [google]
12480494

>>12478871
>build complicated probe to get images of proxima planet
>first images come back
>we see an alien probe looking back at us
too spooky

>> No.12480501

>>12480407
The point was the writers wanted to put a hard cap on speeds that show up in the screenplays

>> No.12480517

>>12480445
My department had a talk from a guy at Marshall before all this Covid shit started - apparently one of the projects on NASA's to-do-list is a combination solar probe-slash-deep space probe. They want to do a massive slingshot maneuver and try to aim it at a star on the way out. Apparently they think they could optimistically get it up to ~1 AU a day on the way out (~0.5% c).

>> No.12480529

>>12480517
>up to ~1 AU a day on the way out (~0.5% c)
that's still nearly a millenium for 4ly wtf

>> No.12480532

>>12480501
Perhaps but they didn't actually achieve that since they just keep getting faster with 9.99x... except it's just way dumber

>> No.12480537

>>12480529
It's a start.

>> No.12480736 [DELETED] 

>>12480233
>Stop reading popsci.
Bitch please. "A narrow band signal at 960 Mhz has been detected originating from the Proxima Centauri System with characteristics consistent with a planetary origin" is big news.

>> No.12480842

>>12476365
It’s supposed to be a moon so even if the planet it orbits is always facing the star this moon would take cover around it serving as a sort of night.

And since the parent is either a super earth or a gas giant it’s probably gonna have a particularly strong magnetosphere which could protect the moon from having it’s atmosphere blown off.

But this is all incredibly optimistic and it’s likely a total shithole.

>> No.12481570

>>12480517
Sounds more useful for this >>12478871

>> No.12481833

>tidally locked

yawn

>> No.12482618

>>12481833
Tidal locking allows for rational division of surface area between races, depending on favoured climate.

>> No.12482672

>>12482618
>allowing other races on your new planet other than asians.
ngmi

>> No.12482789

>>12482672
Nigs can live directly under the sun.

>> No.12482838

If humans went to this planet we would have superhuman strength compared to the locals due to the lower gravity

>> No.12482868

lmao you retards were saying they found life on Venus just a few months ago.

>> No.12482876

>>12482838
we would be 40% stronger, not really "superstrength" lol

>> No.12482954

>>12474326
>Here's a simple temperature simulation i did on the planet
Under that gay UI there is probably some ancient and elegant equation for radiative equilibrium

>> No.12482991

>>12480517
>whoa bro we're gonna use ADVANCED chemical propulsion and EXPLOIT slingshot maneuvers for for FREE ENERGY to reach 0.05%c-t. NASA Marshall
embarrassing

>> No.12483921
File: 176 KB, 962x731, e45e08cc457e5a1d2518b4668b00643e.jpg [View same] [iqdb] [saucenao] [google]
12483921

>>12482991
It's what their contractors can only do.

If the corruption that we have today existed back when the Model T existed in mainstream use there would be government workers still being required to drive a horse buggy to work in the year 2020.

>> No.12483932

why would you want to populate a pure body with h*mans

>> No.12483994
File: 348 KB, 686x519, rearwindow.png [View same] [iqdb] [saucenao] [google]
12483994

>>12480494
>Hello? Hello, Barnard? Barnard, I think Proxima's left. I don't see anything of-
>*click*

>> No.12484013

Sounds like an absolute dumpster of a planet. I'll stay here thanks

>> No.12484047

>>12482991
>Hey, the space program is going to try to do X.
>UGH!! X?? X!? WHY ARE WE WASTING TIME ON X!? WE SHOULD BE ON Z!!

>> No.12484072

please upload the raw data, the rest of you autist keep making noise, bump!

>> No.12484095

>“BLC1 is, for all intents and purposes, just a tone, just one note,” Siemion says. “It has absolutely no additional features that we can discern at this point.” And second, the signal “drifts,” meaning that it appears to be changing very slightly in frequency—an effect that could be due to the motion of our planet, or of a moving extraterrestrial source such as a transmitter on the surface of one of Proxima Centauri’s worlds. But the drift is the reverse of what one would naively expect for a signal originating from a world twirling around our sun’s nearest neighboring star. “We would expect the signal to be going down in frequency like a trombone,” Sheikh says. “What we see instead is like a slide whistle—the frequency goes up.”

So its getting closer as its broadcasted, does the planet rotate at the opposite direction than expected like Venus or Uranus, or could the doppler shift correspond to unexpected retrograde or skewed translation. Anyone now the resolution of measurements that could say smthn abt this?

Please upload the data.

>> No.12484108

>>12484095
Another posibility, battery/power increasing as its broadcast until it exceeds the limits of "breakers".

Please upload the data. (this should be the new "Carthago Delanda Est" endphrase, I recommend you spergs end all posts with it)

>> No.12484139

>>12484047
I think they're doing a great job with the resources and political restrictions they've been given. Unfortunately what they have been given is shit and it will always be embarrassing for an interstellar probe to rely on the oberth effect.

>> No.12484295
File: 281 KB, 1169x559, usa independence.png [View same] [iqdb] [saucenao] [google]
12484295

why do you even care
it's not like the people of proxima are not going full retard

>> No.12484309

>>12484295
>we georgians say: fuck king george!
It's a funny way to start a revolution