Recent comments in /f/space
[deleted] t1_jdob19t wrote
Reply to comment by [deleted] in [NASA on Twitter] Newly-discovered asteroid 2023 DZ2 will pass Earth more than 100,000 miles (161,000 km) away–about half the distance to the Moon–making its close approach at 3:51 p.m. EDT (12:51 p.m. PDT) by ICumCoffee
isnt the size of this one comparable to the one that landed in russia a decade or so ago?
dreamchains t1_jdoav8e wrote
Reply to comment by aurumae in [NASA on Twitter] Newly-discovered asteroid 2023 DZ2 will pass Earth more than 100,000 miles (161,000 km) away–about half the distance to the Moon–making its close approach at 3:51 p.m. EDT (12:51 p.m. PDT) by ICumCoffee
Not quite, it depends on the orientation of the planets (pole to pole/side to side) and the position of the moon. But that makes it even more interesting to me how close those numbers happen to be.
Rhaedas t1_jdoart8 wrote
Reply to comment by Icy-Conclusion-3500 in [NASA on Twitter] Newly-discovered asteroid 2023 DZ2 will pass Earth more than 100,000 miles (161,000 km) away–about half the distance to the Moon–making its close approach at 3:51 p.m. EDT (12:51 p.m. PDT) by ICumCoffee
It actually validates the claim. There is still no known threat in the next 100 years.
aurumae t1_jdoahwd wrote
Reply to [NASA on Twitter] Newly-discovered asteroid 2023 DZ2 will pass Earth more than 100,000 miles (161,000 km) away–about half the distance to the Moon–making its close approach at 3:51 p.m. EDT (12:51 p.m. PDT) by ICumCoffee
“Half the distance to the moon” makes it seem like this is a very close approach, and in relative terms it is.
But the distance between Earth and the moon is still mind-bogglingly huge. So big, that you could fit all the other planets in the solar system end-to-end between Earth and the moon and still have space to spare
Zeconation t1_jdoa3nu wrote
Reply to [NASA on Twitter] Newly-discovered asteroid 2023 DZ2 will pass Earth more than 100,000 miles (161,000 km) away–about half the distance to the Moon–making its close approach at 3:51 p.m. EDT (12:51 p.m. PDT) by ICumCoffee
Suddenly I feel concerned.
Just kidding.
Lets die already.
Nowbob t1_jdo9nhq wrote
Reply to comment by sithelephant in [NASA on Twitter] Newly-discovered asteroid 2023 DZ2 will pass Earth more than 100,000 miles (161,000 km) away–about half the distance to the Moon–making its close approach at 3:51 p.m. EDT (12:51 p.m. PDT) by ICumCoffee
>a circle with the diameter of the lunar orbit is very close to 1/64th the radius of earth
???
What am I missing here? The lunar orbit is MUUUUUCH larger than the radius of the earth isn't it?
Wouldn't the lunar orbit being 1/64 the radius of the earth mean that the moon is whizzing past just barely overhead?
youdubdub t1_jdo8wpn wrote
Reply to comment by Icy-Conclusion-3500 in [NASA on Twitter] Newly-discovered asteroid 2023 DZ2 will pass Earth more than 100,000 miles (161,000 km) away–about half the distance to the Moon–making its close approach at 3:51 p.m. EDT (12:51 p.m. PDT) by ICumCoffee
Based upon your username, I’m thinking you are predicting any potential collision would rather be with a comet.
kimilil t1_jdo88fq wrote
Reply to [NASA on Twitter] Newly-discovered asteroid 2023 DZ2 will pass Earth more than 100,000 miles (161,000 km) away–about half the distance to the Moon–making its close approach at 3:51 p.m. EDT (12:51 p.m. PDT) by ICumCoffee
I like how on Reddit only 1/6th of the globe mattered.
And how just 4 americans can censor me from reaching the rest 5/6th of the world.
Throwawaycuzawkward t1_jdo82my wrote
Reply to [NASA on Twitter] Newly-discovered asteroid 2023 DZ2 will pass Earth more than 100,000 miles (161,000 km) away–about half the distance to the Moon–making its close approach at 3:51 p.m. EDT (12:51 p.m. PDT) by ICumCoffee
Space: We live in it. Some stuff happens.
It's cool enough to spend your whole life studying it, and if you're lucky it won't kill you.
Also time and dinosaurs. SCIENCE.
[deleted] t1_jdo5jm1 wrote
reedef t1_jdo52pd wrote
Reply to comment by sithelephant in [NASA on Twitter] Newly-discovered asteroid 2023 DZ2 will pass Earth more than 100,000 miles (161,000 km) away–about half the distance to the Moon–making its close approach at 3:51 p.m. EDT (12:51 p.m. PDT) by ICumCoffee
You also have to account for the fact that the earth itself attracts asteroids even if they're not heading 100% towards the earth, though I'm not sure how large of an effect that is at interplanetary speeds
za419 t1_jdo52fp wrote
Reply to comment by Peat02 in [NASA on Twitter] Newly-discovered asteroid 2023 DZ2 will pass Earth more than 100,000 miles (161,000 km) away–about half the distance to the Moon–making its close approach at 3:51 p.m. EDT (12:51 p.m. PDT) by ICumCoffee
We'd have to do some orbital mechanics on this one. Most things in the solar system are roughly coplanar on the ecliptic, so the real shape is probably a section of the sphere a few degrees wide.
Or we could probably just guess and multiply the space available by a substantial number, because even that section is going to be pretty tall compared to the Earth. Space is big.
gereedf OP t1_jdo4srf wrote
Reply to comment by zeeblecroid in How might you be celebrating this coming anniversary of Vostok 1? by gereedf
why anger
ICumCoffee OP t1_jdo4fgz wrote
Reply to [NASA on Twitter] Newly-discovered asteroid 2023 DZ2 will pass Earth more than 100,000 miles (161,000 km) away–about half the distance to the Moon–making its close approach at 3:51 p.m. EDT (12:51 p.m. PDT) by ICumCoffee
Asteroid can be live tracked over here : https://eyes.nasa.gov/apps/asteroids/#/asteroids/2023_dz2
Peat02 t1_jdo3zaz wrote
Reply to comment by sithelephant in [NASA on Twitter] Newly-discovered asteroid 2023 DZ2 will pass Earth more than 100,000 miles (161,000 km) away–about half the distance to the Moon–making its close approach at 3:51 p.m. EDT (12:51 p.m. PDT) by ICumCoffee
Wouldn't this be based on the volume of the lunar diameter sphere and the percentage that the earth makes up of that volume rather than the diameter?
zeeblecroid t1_jdo3r9v wrote
I traditionally celebrate Yuri's Night by brandishing the angryfist at the cloud cover.
Icy-Conclusion-3500 t1_jdo1whn wrote
Reply to comment by GhostBurger12 in [NASA on Twitter] Newly-discovered asteroid 2023 DZ2 will pass Earth more than 100,000 miles (161,000 km) away–about half the distance to the Moon–making its close approach at 3:51 p.m. EDT (12:51 p.m. PDT) by ICumCoffee
It’s mostly a little ironic to note since they JUST discovered this asteroid that is making a close approach
GhostBurger12 t1_jdo0ns3 wrote
Reply to comment by LowVacation6622 in [NASA on Twitter] Newly-discovered asteroid 2023 DZ2 will pass Earth more than 100,000 miles (161,000 km) away–about half the distance to the Moon–making its close approach at 3:51 p.m. EDT (12:51 p.m. PDT) by ICumCoffee
Why is it a rub?
It doesn't infer there is an unknown collision threat guaranteed to show up in the next 100 years.
[deleted] t1_jdo03ig wrote
Reply to comment by stewake in How might you be celebrating this coming anniversary of Vostok 1? by gereedf
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You_Yew_Ewe t1_jdnze2x wrote
Reply to comment by [deleted] in If earth was a smooth sphere, which direction would water flow when placed on the surface? by Axial-Precession
The magnitude of earth's gravity varies [pretty haphazardly across the globe](https://www.popsci.com/science/article/2010-06/esa-satellite-maps-earths-gravity-3-d/). It's not closely correlated with the equator.
Maybe you mean because of the sum of gravity and centrifugal force makes means the mass has less weight?
[deleted] t1_jdob4qm wrote
Reply to comment by Nowbob in [NASA on Twitter] Newly-discovered asteroid 2023 DZ2 will pass Earth more than 100,000 miles (161,000 km) away–about half the distance to the Moon–making its close approach at 3:51 p.m. EDT (12:51 p.m. PDT) by ICumCoffee
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