this post was submitted on 08 Oct 2024
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chapotraphouse

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[–] [email protected] 35 points 1 week ago (1 children)

"Fish are really old and that fucks my shit really bad."

~H.P. Lovecraft

[–] [email protected] 15 points 1 week ago (1 children)
[–] [email protected] 9 points 1 week ago (1 children)
[–] [email protected] 3 points 1 week ago

The gamer word, Nintendo

[–] [email protected] 31 points 1 week ago (1 children)

Sharks are older than cringe

[–] [email protected] 40 points 1 week ago (4 children)

counterpoint: this cringe ass nerd

[–] [email protected] 26 points 1 week ago

Why did he do it?

[–] [email protected] 15 points 1 week ago* (last edited 1 week ago) (1 children)

Sharks are also older than this cringe ass nerd (depending on what you count as a shark).

[–] [email protected] 23 points 1 week ago

My definition of what counts as a shark is entirely dependent on my shitpost being correct

[–] [email protected] 24 points 1 week ago* (last edited 1 week ago) (3 children)

~~it's a 1.5 billion-year-old star~~

~~sharks are 300 million years old at best, if you date them to their ancestors in the Permian period~~

idk anything, ignore me, I'm just a simple, ill-tempered sea bass

[–] [email protected] 33 points 1 week ago (1 children)

Polaris Aa is only 60 ish million years old, polaris Ab is under 500 million. Polaris B is the 1.5 billion years old one. Polaris A is the vastly brighter of the three and is typically what people mean when they refer to the three stars.

[–] [email protected] 30 points 1 week ago (1 children)

Also re: the age of sharks, 300 million is a low estimate. It's like 300 to 420 million, depending on how you define a shark.

[–] [email protected] 15 points 1 week ago
[–] [email protected] 18 points 1 week ago (2 children)

I've always wondered what itsb stood for.

[–] [email protected] 8 points 1 week ago* (last edited 1 week ago)

you're invited and encouraged to create your own meanings, here are a few to get you started:

ignorant, terrified, scrawny bastard

illustrious truly sexy beach

ingrown toenail stuff bad

inguinal tear salve book

ibbit-ibbit tweet-tweet soooooweeee bokbok

[–] [email protected] 3 points 1 week ago (1 children)

holy shit its an austin powers reference lmao. My sister, my cousin, and I used to quote that movie ALL THE TIME. There are still some I use regularly, like "Allow myself to introduce.... myself" when meeting strangers usually at a bar or party or something.

[–] [email protected] 1 points 1 week ago

Ooh, I would have never remembered that!

[–] [email protected] 21 points 1 week ago (1 children)

It is up. Like, it is the most up a thing can be.

[–] [email protected] 20 points 1 week ago (2 children)

Its not directly up tho, polaris' degree off-horizon is equal to your latitude. The star at up-most zenith changes contantly.

[–] [email protected] 19 points 1 week ago

fedposting you should post the most zenith star to you right now

[–] [email protected] 9 points 1 week ago

Posting from my series of orbital satellites that stay fixed to the north star

[–] [email protected] 16 points 1 week ago

The stars we see with just our eyes in the night sky are mostly all incredibly huge, bright, short lived stars. Betelgeuse is only 10 million years old, having formed well after the extinction of the dinosaurs. It's already on death's door, and could explode at any moment now (speaking on geological time-scales)

[–] [email protected] 14 points 1 week ago (1 children)

Polaris hasing always been "The North Star" earths axis has a bit of a wobble on the timeline of thousands of years. In 4700 B.C. the North Star wars a star named Thuban.

[–] [email protected] 1 points 1 week ago

the north star wars

[–] [email protected] 14 points 1 week ago

Ulysses cameo

[–] [email protected] 13 points 1 week ago (1 children)

The youngest neutron star is 37 years old.

[–] [email protected] 9 points 1 week ago

i hope they called it Jimmy

[–] [email protected] 10 points 1 week ago

It's not real. It's fake. They just shoot a satellite up there every night so you people living in the northern hemisphere have something to look at.

[–] [email protected] 8 points 1 week ago* (last edited 1 week ago) (3 children)

~300 to ~400 million years ago - wasn't the placement of all the stars in the night sky entirely different from the POV of earth?

---

I made an edit.

[–] [email protected] 11 points 1 week ago (2 children)

I think (but don't know, I'm not an astronomer) the ancient Greeks and Egyptians saw a different sky than we do because of the orbit around the center of the galaxy. I'd have to look it up, but that might have changed how constellations looked.

I do know in the far future (like several billion years), stars will be farther apart in the sky and eventually as the universe expands, you won't see anything except pitch black. It's spooky stuff ._.

[–] [email protected] 13 points 1 week ago* (last edited 1 week ago) (1 children)

The more noticeable cause of the sky looking different for the ancient Greeks would be due to precession instead of Earth's orbit around the Galaxy. Precession is Earth's "wobble", the "rotation" of Earth's own axis of rotation. Like how a top wobbles around as it spins. It takes about 26,000 years for the Earth's axis of rotation to make "wobble around" in one cycle. So this is the larger cause of the night sky, and the pole star, looking different for the ancient greeks. But this impacts the apparent position of all stars in the sky. So Ancient Greeks could see certain constellations that are currently too far below the horizon for their contemporaries. The positions of these constellations have changed.

Earth's or the solar system's orbit around the galaxy takes about 230 million years, so this would have less of an impact.

But there would be some differences.

The stars are moving though as they orbit around the Milky way. Some stars move much fast than others and their individual positions could definitely change over thousands of years. From Universe Today

When a star is moving sideways across the sky, astronomers call this “proper motion”. The speed a star moves is typically about 0.1 arc second per year. This is almost imperceptible, but over the course of 2000 years, for example, a typical star would have moved across the sky by about half a degree, or the width of the Moon in the sky.

[–] [email protected] 6 points 1 week ago

Neat! I thought I was remembering stuff somewhat, TY for posting.

[–] [email protected] 7 points 1 week ago (2 children)

stars will be farther apart in the sky and eventually as the universe expands, you won't see anything except pitch black.

I once went to a Wikipedia page with a title like "the far timeline of the universe" or something. Putting it poetically - I think it was that the stars go out on earth in ~100b years.

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Ninja edit

Timeline of the far future

100–150 billion The Universe's expansion causes all galaxies beyond the former Local Group to disappear beyond the cosmic light horizon, removing them from the observable universe.

I guess Windows 10^87^ won't allow you to reconnect to Local Group unless you have Windows 10^87^ Pro.

[–] [email protected] 7 points 1 week ago (1 children)

The far future is truly Lovecraftian and hard to fathom. Eventually star formation will cease, most of the timespan of the universe will be the "dark era" where black holes slowly evaporate due to Hawking Radiation. Then there will only be light, and when there is only light then time itself ceases to exist as a meaningful construct. Space, too, perhaps. Then there is an alternative, even longer ending, if it's possible for light itself to decay.

[–] [email protected] 2 points 1 week ago (1 children)

Then there is an alternative, even longer ending, if it's possible for light itself to decay.

Rage, rage against the ~~dying~~ decaying of the light.

[–] [email protected] 2 points 1 week ago

Semi unrelated but I really love futuretimeline.net for stuff like this. In the shorter term they try to make predictions on a human scale but the extreme long term is all astronomical stuff since it's the only thing that can be predicted millions of years in the future

[–] [email protected] 8 points 1 week ago

Some were, some weren't. There are plenty of stars in the sky that are billions of years old

[–] [email protected] 6 points 1 week ago

Polaris has a few stars in it, the big one is apparently only about 60 million years old.

[–] [email protected] 4 points 1 week ago* (last edited 1 week ago)

Thought this was about DSA

[–] [email protected] 4 points 1 week ago

where are they hiding the south star tho?