The Astronomy Thread

Furry

Furry

WoW Office
<Gold Donor>
19,486
24,582
An collision/disturbance within the solar system could still cause it too take that ejection trajectory. Unfortunate we can't take a look, such a missed opportunity!
 
  • 1Like
Reactions: 1 user
meStevo

meStevo

I think your wife's a bigfoot gus.
<Silver Donator>
6,371
4,648
So now we know it's very red (like kuiper belt objects) and featureless.

 
  • 1Like
Reactions: 1 user
meStevo

meStevo

I think your wife's a bigfoot gus.
<Silver Donator>
6,371
4,648
This is a cool thread too.

upload_2017-10-27_9-35-17.png


 
  • 1Like
Reactions: 1 user
Ukerric

Ukerric

Bearded Ape
<Silver Donator>
7,910
9,545
Furry said:
An collision/disturbance within the solar system could still cause it too take that ejection trajectory. Unfortunate we can't take a look, such a missed opportunity!
Click to expand...
Almost certainly not: it's 122° from the ecliptic, so it never even came close to any major body in the solar system.
 
  • 1Like
Reactions: 1 user
Ukerric

Ukerric

Bearded Ape
<Silver Donator>
7,910
9,545
Also, since that animation in the tweet wasn't very clear, here's a better view:

A2017U1_animation.gif
 
  • 4Like
Reactions: 3 users
meStevo

meStevo

I think your wife's a bigfoot gus.
<Silver Donator>
6,371
4,648
Can you imagine, if instead of a small rock that was a brown dwarf ejected from a solar system or something.

Coming up next on Syfy...
 
  • 2Like
Reactions: 1 users
meStevo

meStevo

I think your wife's a bigfoot gus.
<Silver Donator>
6,371
4,648
Jet observed on 67p. Frozen Comet Fart (Actually a Jet) Caught on Camera

"This plume was really special," Agarwal added. "We have great data from five different instruments on how the surface changed and on the ejected material because Rosetta was, by chance, flying through the plume and looking at the right part of the surface when it happened. Rosetta hasn't provided such detailed and comprehensive coverage of an event like this before."

Rosetta finds comet plume powered from below

MTUwOTEzNjc5MA==
 
  • 4Like
Reactions: 3 users
Cybsled

Cybsled

Avatar of War Slayer
16,441
12,087
meStevo said:
Can you imagine, if instead of a small rock that was a brown dwarf ejected from a solar system or something.

Coming up next on Syfy...
Click to expand...

There was some mini-series on History channel called 10 ways the world can end. One was a rogue planet the size of Neptune being flung into our solar system and getting close enough to Earth that gravitational forces tear our planet apart.
 
  • 2Like
Reactions: 1 users
Dandain

Dandain

Trakanon Raider
2,092
917
This is a front page thread.

NASA Astrobiology

An artificial magnetosphere of sufficient size generated at L1 – a point where the gravitational pull of Mars and the sun are at a rough equilibrium — allows Mars to be well protected by what is known as the magnetotail. The L1 point for Mars is about 673,920 miles (or 320 Mars radii) away from the planet. In this image, Green’s team simulated the passage of a hypothetical extreme Interplanetary Coronal Mass Ejection at Mars. By staying inside the magnetotail of the artificial magnetosphere, the Martian atmosphere lost an order of magnitude less material than it would have otherwise. (J. Green)
Click to expand...


pls-use-this-image-not-image-1.jpg__1240x510_q85_subsampling-2.jpg
 
  • 5Like
  • 1Solidarity
Reactions: 5 users
Cybsled

Cybsled

Avatar of War Slayer
16,441
12,087
They don't get really into the details, but I wonder what size/power requirements would be needed to create something like that?
 
  • 2Like
Reactions: 1 users
Dandain

Dandain

Trakanon Raider
2,092
917
What is dead may never die

To quote the first line of a letter published today in the journal Nature, “Every supernova so far observed has been considered to be the terminal explosion of a star.” In other words, when a massive star blows itself up, it should remain dead. This is something astronomers have witnessed thousands of times before with absolutely no exceptions.
Click to expand...
 
  • 1Like
Reactions: 1 user
meStevo

meStevo

I think your wife's a bigfoot gus.
<Silver Donator>
6,371
4,648

The scattered light from the stellar blast travels different distances to arrive at Earth. Some light comes to Earth directly from the supernova blast. Other light is delayed because it travels indirectly. In this case, the light is bouncing off a huge dust cloud that extends 300 to 1,600 light-years around the supernova and is being reflected toward Earth.​
 
  • 4Like
Reactions: 3 users
pharmakos

pharmakos

soʞɐɯɹɐɥd
<Bronze Donator>
16,306
-2,239
"At its closest approach to Jupiter during each flyby, the robot briefly becomes the fastest human-made object in the solar system, reaching speeds of around 130,000 miles per hour."
 
  • 2Like
Reactions: 1 users
Kharzette

Kharzette

Watcher of Overs
4,921
3,566
Wish we could get a stationaryish ship over that and some nice 4k animations taken from shots every few minutes so you could see movement in the clouds and such.
 
  • 1Like
  • 1Solidarity
Reactions: 1 users
You must log in or register to reply here.