astronomy

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grrgyle, w Size Comparison: Pluto and Australia

No way!

niktemadur, w Size Comparison: Pluto and Australia

I’m digging the way the map shows Tasmania as part of the continental plate.

Piemanding,

Is it on purpose or is it because of ocean depth?

niktemadur,

The light blue part is shallow and when it’s underwater, they call it “continental shelf”.
Tasmania and mainland Australia are connected by the same, shared continental shelf.

MonkderVierte, w Size Comparison: Pluto and Australia

TIL australia has hydrostatic equilibrium.

captain_aggravated, w Size Comparison: Pluto and Australia
@captain_aggravated@sh.itjust.works avatar

Meanwhile, Australia is down there like “WTF mate?”

milicent_bystandr,

Nah, no one likes lives in that part of Australia. Pluto sitting there just means drivers from Perth to Sydney have to take a little detour.

captain_aggravated,
@captain_aggravated@sh.itjust.works avatar

I mean, I’m pretty sure you’d be able to see it from everywhere in Australia, so I bet many of them would be like “WTF?” But they’ll be dead soon. Fuckin’ kangaroos.

TonyOstrich,

Fucking kangaroos

Etterra, w Size Comparison: Pluto and Australia

That’s awesome. And to think, it’s only slightly less inhospitable in Australia!

Freefall, w Size Comparison: Pluto and Australia

In future news; Donald X Musk III, worlds first quintillionare, decided to alter Pluto’s orbit to collide with Mars “Becauth it would be thoo cool!”.

Pyr_Pressure, w Size Comparison: Pluto and Australia

I can see why they no longer call it a planet, what’s the cutoff for asteroid size?

johannesvanderwhales,

It is still a dwarf planet. Basically when it hits hydrostatic equilibrium, i.e. when it’s round, it is considered a dwarf planet. More here

troyunrau, w Senate bill would create center to study satellite interference with astronomy
@troyunrau@lemmy.ca avatar

This is a pop-science problem and not a real science problem. Any astronomy imaging system worth its salt has image stacking algos that remove transients easily enough.

Gnomie,

Here’s an actual scientist saying the number of satellites interferes with astronomy.

troyunrau,
@troyunrau@lemmy.ca avatar

Hi, it’s me. An actual scientist. Did grad school in planetary science. The same techniques we use to spot asteroids are the techniques used to spot satellites. But removing them is even simpler. It’s not algorithmically hard at all.

In fact, it’s so simple that I’ll write it out: take several images (at least three) in quick succession and take the median value across those images.

Oh hey, that was easy. Makes a good despeckle filter too for cosmic ray strikes or whatever else.

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