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submitted 2 years ago by vegeta@lemmy.world to c/news@lemmy.world
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[-] Varyk@sh.itjust.works 43 points 2 years ago

I've read like eight of these articles about this Moon just trying to find out if we can see it without a telescope.

I'm assuming we can't see it, but none of the articles I've read mention it. it seems crazy that none of them mention its visibility.

Will we be able to see the second moon?

[-] GildorInglorion@lemmy.world 25 points 2 years ago

The posted article says no, not even with an amateur telescope

[-] Varyk@sh.itjust.works 12 points 2 years ago

of course i skim this one and it's in the final paragraph.

thank you!

[-] IamSparticles@lemmy.zip 14 points 2 years ago

The closest approach is about 600,000 Km away. That's more than twice the distance to the moon. At that distance, to be (just barely) visible to the naked eye, it would have to be about 170km across, which would put it among the largest asteroids in the solar system. In fact, 2024 PT5 is only about 11m across (~36ft). You would need quite a powerful telescope, indeed, to see an object that small at that distance.

[-] vegeta@lemmy.world 26 points 2 years ago
[-] nokturne213@sopuli.xyz 8 points 2 years ago

For two months it is.

[-] Rhaedas@fedia.io 3 points 2 years ago

I've got a bad feeling about this.

[-] RizzRustbolt@lemmy.world 3 points 2 years ago

Just fly casual.

[-] lettruthout@lemmy.world 10 points 2 years ago

Was wondering about its size: 11 meters (36 ft) in diameter per wikipedia

[-] nokturne213@sopuli.xyz 15 points 2 years ago

That is just over 98 Big Macs.

[-] drspod@lemmy.ml 4 points 2 years ago

spinning around Earth in a horseshoe shape for about two months

what? what kind of orbit is that?

[-] suburban_hillbilly@lemmy.ml 7 points 2 years ago* (last edited 2 years ago)

The kind that takes more than 2 months to 'complete'. From the perspective of the earth it makes a horseshoe shape. From the 'temporary moon' perspective it gets a trajectory adjustment on its solar orbit.

It's more like a gravity assist that takes 2 months to complete than an orbit.

[-] forrcaho@lemmy.world 5 points 2 years ago

It's a parabola or hyperbola. Of course, it's not technically an "orbit" since it isn't closed; the Wikipedia pages are called Parabolic trajectory and Hyperbolic trajectory.

[-] superkret@feddit.org 3 points 2 years ago

An asteroid called 2020 CD3 was bound to Earth for several years before leaving the planet's orbit in 2020

How can something that's in an orbit for years then just leave again?
Is the orbit so big it crosses other planets' sphere of influence?
Or is its apoapsis far enough away for the sun to snatch it away?

[-] PaupersSerenade@sh.itjust.works 2 points 2 years ago

Immediately thought of QI

[-] Virkkunen@fedia.io 1 points 2 years ago

A second mini moon? Do we even have a first mini moon?

So if I’m doing the math right… that’s 3 total moons:

Moon

Mini moon 1

The second mini moon

Science is fun.

[-] DmMacniel@feddit.org 1 points 2 years ago

can we capture it?

this post was submitted on 19 Sep 2024
77 points (100.0% liked)

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