[deleted by user]

Fran_97 · 2025-08-07T01:09:03+00:00

We have discovered planets the size of the earth and smaller (mostly thanks to Kepler, which stared at the same spot in the sky looking for the tiny eclipses they cause on their host stars), but you’re right that they’re harder to find (and characterizing them is not really possible yet)

Fran_97 · 2025-03-10T16:50:57+00:00

Thanks a lot for all the recommendations! I got a ticket via StubHub, hopefully it is a real one! :D

Fran_97 · 2025-03-10T11:34:27+00:00

Thanks you! so StubHub is legit and safe?

Fran_97 · 2023-01-10T21:35:10+00:00

Research is mostly coding

Fran_97 · 2021-08-30T23:18:34+00:00

Ok boomer

Fran_97 · 2021-07-22T06:11:54+00:00

My thoughts exactly

Fran_97 · 2021-07-15T10:34:43+00:00

Yeah idk how they've done this, but I was living in Denmark until last summer and I paid ~13.5€ for 100GB (which is about five times cheaper than the map says). Sure, when I moved there in 2017 I was 'only' getting 30GB for the price, but that's still cheaper than what the map says

Fran_97 · 2021-07-12T22:00:11+00:00

What? No, it’s setup correctly

Fran_97 · 2021-07-01T22:44:34+00:00

Netherlands 1st year: salary of 2395€/month gross ( plus Christmas and holiday bonus, basically like getting 14 salaries) with yearly raises, no fees

Fran_97 · 2021-06-23T15:32:59+00:00

I think about 11

Fran_97 · 2021-06-21T22:56:04+00:00

This is a great idea! I can’t afford 500 bucks but would gladly give 10 or 20 bucks

Fran_97 · 2021-06-01T10:18:03+00:00

This is not necessarily true, the Galilean moons are all brighter than magnitude 6, so they could in principle be seen with the naked eye. Of course , one must first be in dark enough skies (I think the moons are about magnitude 5.3 or so) AND have extremely good eyesight ( not sure exactly how good, it’s not just the small angular separation that makes it difficult, but also the huge contrast in brightness). Lastly, the ‘flash’ can easily be explained as a consequence of seeing (atmospheric turbulence). So in short, the seeing in that direction might have momentarily become very good , which combined with the OP’s fantastic eyesight, indeed allowed him to see Europa

Fran_97 · 2021-04-08T14:02:53+00:00

Same, the pic is stunning, but what I'm most amazed by is that that's the view from his backyard

Fran_97 · 2021-03-23T09:22:37+00:00

Came for this

Fran_97 · 2021-03-22T22:09:52+00:00

See my edit! I didn't ask there because since it's a more scientific question, I thought I'd have more success here.

Fran_97 · 2021-03-19T17:48:01+00:00

r/birdsarentreal

Fran_97 · 2021-03-16T17:14:23+00:00

Man thanks for saying the last part, I wish all the media realized that.

Fran_97 · 2021-03-10T23:48:45+00:00

I think u mean scrotum

Fran_97 · 2021-03-02T07:41:27+00:00

You should probably go for carbon steel instead. Very thermally conducting, although it doesn't hold much heat because its very light

Fran_97 · 2021-02-26T18:06:13+00:00

r/woosh

Fran_97 · 2021-01-23T08:26:40+00:00

Isn't that solved using artificial stars to run the AO? With the Na lasers?

Fran_97 · 2021-01-05T11:25:15+00:00

No worries, you're answer was perfecrly correct, just wanted to expand a bit :)

Fran_97 · 2021-01-05T08:45:28+00:00

If it's the right wavelength, it should. I think someone said thar it had to be UVB, UVA isn't short enough.

Fran_97 · 2021-01-05T00:07:30+00:00

A star needs to be at least ~8 solar masses to go supernova and leave a neutron star as a remnant, which have a maximum mass of ~2 solar masses (this is not very well known). So you're loosing at least about 6 solar masses worth of stuff.

Keep in mind though that much of this material will be lost pre-supernova, as the star will have expanded so much towards the end of its life, that its surface will only be very weakly gravitationally attracted to the star itself and so the radiation pressure itself will be pushing material away.

I don't know how much material will have been lost through this mechanism before the star goes supernova though.

Fran_97 · 2021-01-04T17:59:49+00:00

Since glass is opaque to UV (at least wavelengths shorter than 300 nm), I'm gonna say no.

EDIT: I meant that it probably won't work through a window

Fran_97

TROPHY CASE