The Astronomy Thread

meStevo

I think your wife's a bigfoot gus.
<Donors Crew>
3,687
1,613
12d 6h 4m
So as of a couple minutes ago, New Horizons just passed by Ultima Thule, the closest it's come to an object since about 30 minutes after liftoff. It will phone home in a few hours, live stream stuff resumes around 7am PST.
 

iannis

Chairman Meow
<Donors Crew>
24,114
16,873
24d 20h 8m
How did they get ripples in the steel though?

it ain't their first rokkitship, and ship builders have been producing unrippled steel plating since the merrimac.

did they go cheap on a trivial aesthetic? I don't think they're incompetent and I also doubt the ripples matter. That was a decision to not care.
 

meStevo

I think your wife's a bigfoot gus.
<Donors Crew>
3,687
1,613
12d 6h 4m
Queen's Brian May is also an astrophysicist and wrote a song about New Horizons.

First image of Ultima Thule imaged from New Horizons. They think they're approaching it from one of it's poles.

View attachment 187986
Rofl:


Latest coming into better focus. It won't be until February until we have the highest resolution images that were taken. A lot of science will be coming down for a long time. Here's the latest image (edit: actually, might just be a better processed first image).


Q&A ongoing:


Anyways, the big thing so far today is they were able to confirm the probe survived the encounter. The trickle of low res images begins soon.
 
Last edited:

meStevo

I think your wife's a bigfoot gus.
<Donors Crew>
3,687
1,613
12d 6h 4m
Initial science and photo(s) of the flyby to be revealed in the presser that starts in a few minutes:

 
  • Like
Reactions: chthonic-anemos

iannis

Chairman Meow
<Donors Crew>
24,114
16,873
24d 20h 8m
So they go faster.


They're either going to be red, blue, or green I guess. Based on how our eyes work. Our sun is greenish yellow, right? It may be no more complex than color theory and an indication that there was more heavy red stuff in the protoplanetary disc than blue or green. A lot of words to say it's red because it's red. Not very satisfying. Maybe there's a better reason.

Most of the not-star solar system is red though. Just Jupiter being mostly red makes that true. So really it might just be initial conditions. Might just be that simple. Probably also something fundamental about how light works. Earth is pretty red underneath the water and biomass.
 
Last edited:
  • Like
Reactions: chthonic-anemos

khorum

Get Raped
<Donors Crew>
17,778
51,155
68d 8h 22m
  • Like
Reactions: chthonic-anemos