/sci/ - Science & Math

>>6074542
oops, I typo'd. That's NGC *3*576

bumping with the Hoag Galaxy, a ring galaxy seen face on with, coincidentally, another ring galaxy visible behind it.

I want to read more on astronomy/astrophysics to contemplate what I missed out on by not majoring in this instead of chemistry
I picked up a brief history of time for now

>>6074542
m1
>because everyone loves crabs

Kepler's Supernova remnant

I like SN1994D.

>>6074606
That's not even a galaxy, pleb.

The Eagle Nebula

>>6074974
I'm convinced that this is the result of some horrible alien weaponry.

The flaccid dick nebula

>>6075365
uh...yes it is.
http://hubblesite.org/newscenter/archive/releases/2002/21/image/a/

Here's Messier 81

Holy Shit this thread is awesome

>>6075325
Holy shit that things like knotting itself into itself.

>>6075460
>>6075482
>>6075325
why are nebulae any sort of controlled shape?

>>6075490
You're right, I usually hear it referred to as Hoag's Object.

>>6075365
Hurrr der

>>6075505
No way is that real

> I SEE YOUUUUUUUUU

>>6075502
Gravity pulls the gas together into a shape. The shape itself is a result of the initial conditions of the universe. You also have to realize that the boundary is light years long, and is a slow gradient from vacuum to a few thousand particles per square meter.

The Cat's Eye planetary nebula

>>6075623
The Cat's Eye nebula is expanding at an astronomically astounding rate. Here's a gif showing the expansion over just three years.

>>6075629
holy shit thats fast

orion belt nebula

>>6075529
I guess my problem is that galaxies seem to have regular shapes and nebulae are just like fuck being regular

>>6075692
It depends on the type of nebula and what produced it. Planetary nebulas like Abell 39 here, and >>6075623 and >>6075505 typically take on round shapes (although some are irregular). These are the remnants of dead or dying sun-like stars.
This >>6075325 is a young supernova remnant. Nebulas like it tend to expand a little less orderly. As gravity pulls the material back together into stars and planets, the shape of the nebula distorts even more. When the stars ignite fusion (usually they form in clusters) their solar winds blow the remaining dust in the nebula away, see the "wind" blowing from the tops of the Pillars of Creation (called Evaporating Gaseous Globules or EGGs) here>>6075460

>>6075709
Then of course there are absorption nebulas. These nebulas are mostly solid dusts instead of gasses, and like their name suggests, they absorb most of the light that hits it, so they appear black.

NGC1300 in the house

>>6075712
Woah, that's cool. There's so much weird shit in the universe it's crazy.

A supernova in the Whirlpool Galaxy
>animooted

The Carina Nebula

Stephan's Quintet, four gravitationally entangled, co-orbiting galaxies, and another galaxy that just happens to be in the field of view.

M74.
>dem curves
>objective beauty coming thru
>Fibonacci as fukk

>>6076722
10/10 would observe.

>>6074542
Sombrero is one of the prettiest

NGC 602, bright reflection clouds and dark absorption clouds around a young star cluster.

I can't believe no one posted The Rose.

It's been number 1 on the official list of the best Hubble pictures for years now (on the Hubble site, I mean).

>>6076806

sombrero all day

>>6077424
Also, when it comes to Nebulae, Carina gets my vote..

this thread makes me cry

>>6077740
Maybe the Smile Nebula will cheer you up.

>>6077424
I need to go to the Hubble website more, apparently.

Looking at pictures of galaxies makes me feel really lonely for some reason.

>>6075709
Now that's a Dyson sphere if I've ever seen one.

M42

>>6078232
I know that feed bro.
Well, at least we know those tings are up there.
Feels sorry for people lived in past not knowing and seeing these beauty.
Imagine how how lucky people of future will start travelling these vast distances and visiting other planets.

>>6078243
Sotty for my brain being damaged by THC

>>6078236
nope, just a regular old dying sun like NGC 6781 here.

This clearly shows the jet of matter ejected from galaxy M87 at nearly light speed,as it stretches 1.5 kpc (5 kly) from the galactic core.

>>6078232
>>6078243
Look at them now, for some of them will be gone in a few thousand years. In a few billion years even the most long-lasting ones will stop shining.

>>6078249
looks like another dyson sphere

>>6078252
This artist's concept depicts a supermassive black hole at the center of a galaxy. NASA's Galaxy Evolution Explorer found evidence that black holes -- once they grow to a critical size -- stifle the formation of new stars in elliptical galaxies. Black holes are thought to do this by heating up and blasting away the gas that fuels star formation.

The blue color here represents radiation pouring out from material very close to the black hole. The grayish structure surrounding the black hole, called a torus, is made up of gas and dust. Beyond the torus, only the old red-colored stars that make up the galaxy can be seen. There are no new stars in the galaxy.

;_;

>>6078257
sorry to disappoint you. Both are examples of the aftermath of a Sun-like star swelling to the Red-giant phase of its life, shedding its outer layera, and collapsing back to form a white dwarf star.

>>6078259
layers*

>>6078258
OP here, I suppose black holes are acceptable ITT. At least they're better than puny-little living stars.

Here are two co-orbiting black holes at the centers of merging galaxies shown in x-ray (blue) and radio (pink) light.

>>6078250
Don't get it.
Why does the beam seem distorted?
Is it directed to us?

>>6078273
How is it distorted?

>>6078273
the jet is spiraling because of the rotation matter as it is flung away from the black hole. No, it is not directed at us. Since we can clearly see the length of the jet, we can easily conclude it is not pointing at us.

>>6078288
>rotation matter
rotation of the matter*

>>6078141
it looks like some kinda badge for a professional organization.
>>6078236
??
you do know what a dyson sphere is?
>>6078238
butterfly nebula
>>6078258
that looks like a blast crater.
a very. very. very. very. very. very. big crater

anyone know why the apod index is down but the website is up?
http://apod.com/
http://apod.com/archivepix.html

>>6078300
M42 is the Orion Nebula. This is the Butterfly Nebula aka NGC 6302

apod.com is a mirror site of apod.nasa.gov/apod/
Since APOD is not written by gov scientists or members of NASA, it is continuing even while NASA remains idle. However, APOD and the archive is hosted on the NASA servers and mirror sites don't always host the archive.

is it a elliptic or is it lenticular ?

>>6078300
you do know what a dyson sphere is?
yes, and I dont see why you think they need to be 100% absorbant to be effective

>>6074542

>>6078308
NGC 2787 is a barred lenticular galaxy.
>>6078311
There's already a thread for dyson spheres. Please keep that discussion in there.

>>6078314
go back to math class

>>6078306
that butterfly doesn't have a body.
M42 does!!
It's so beautiful.

> NGC 6302
what causes it to bunch up like that?
some inconsistency in holding together force made it explode at both ends?
omg omg omg. Did a giant star fly through it. like a bullet.
that'd be cool

>>6078319
loli haven't had a math class since iwas in 10th grade because of votech an that was 6 years ago I fucking suck at math

>>6078318
The Butterfly Nebula is an irregular planetary nebula known as a bipolar nebula. It's not totally understood what causes the two poles, but one prevailing theory is that the red giant that formed the nebula was spinning so fast that, as it shed material, the matter was flung out from the poles, similar to radio jets from a black hole.

>>6078324
PN HB 12 is another bipolar nebula.

The Witch Head nebula

>>6078535
and the Wizard nebula