astronomy

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Thorry, w Jupiter from the Webb Space Telescope

It’s still stunning to me how small the great red spot has become. If it gets any smaller it’s hardly a feature worth talking about. I remember back in the 80’s looking through my telescope at Jupiter and clearly seeing the spot. I know it’s entirely possible, but to see a large thing like that visibly change over my lifetime still somehow feels wrong.

doc, w Jupiter from the Webb Space Telescope

Would love to have one without the labels. Perfect wallpaper material. Is the source somewhere in nasa.gov?

darreninthenet,
200ok, w Plato and the Lunar Alps

About one-third the length of the range from the southeast is Mons Blanc, a peak rising to a height of 3.6 km. This compares to a typical height of peaks in this range of 1.8 to 2.4 km.

~ en.wikipedia.org/wiki/Montes_Alpes

Those are a lot taller than I imagined! The actual Alps in Europe are just taller than 4km so I can understand the reference.

SpaceRanger13, w M51: The Whirlpool Galaxy

M51: The Whirlpool Galaxy
Image Credit & Copyright: Michael Sleeman

Explanation: The Whirlpool Galaxy is a classic spiral galaxy. At only 30 million light years distant and fully 60 thousand light years across, M51, also known as NGC 5194, is one of the brightest and most picturesque galaxies on the sky. The featured deep image is a digital combination of images taken in different colors over 58 hours with a telescope from Lijiang, China. Anyone with a good pair of binoculars, however, can see this Whirlpool toward the constellation of the Hunting Dogs (Canes Venatici). M51 is a spiral galaxy of type Sc and is the dominant member of a whole group of galaxies. Astronomers speculate that M51’s spiral structure is primarily due to its gravitational interaction with the smaller galaxy just above it.

Robomekk, w [Stephen Clark] NASA launches new mission to get the most out of the James Webb Space Telescope

Quick summary seems to be that they’re using it to monitor the stars that Webb is seeing planets pass in front of. To better model that stars behaviour with prolonged observation. To better understand whether signals that look like water and methane are really from the passing planet, or just from changes in the star’s activity over time.

subway76, w Jupiter's Clouds from Juno

The player must learn speed control and obstacle jumping to succeed in run 3, as even the slightest error can cause accidents and failure to complete stages.

subway76, w IC 342: Hidden Galaxy in Camelopardalis

Geometry Dash SubZero throws you right into the action with levels that don't mess around and graphics that are as cold as ice. You need to have great timing and quick reflexes—one mistake and you have to start over.

protist, w Why doesn't Argentina have more telescopes?

You’ll find most of Chile’s observatories are in the Atacama Desert, and that almost all of the Atacama Desert is in Chile. The high elevation, incredibly low humidity, and remote location make for dark, clear skies

Tollana1234567, w Astronomers discover fastest-ever spinning asteroid — over half a kilometer wide — using the world's largest digital camera stationed at the Rubin Observatory

half a kilometer isnt that big as far as most asteroid goes. the most devastating ones were over 10km.

StealThisComment, w Astronomers discover fastest-ever spinning asteroid — over half a kilometer wide — using the world's largest digital camera stationed at the Rubin Observatory

I don’t care how big it is, spinning asteroids should not be allowed to use digital cameras.

quediuspayu, (edited ) w New Type of Astronomical Object Discovered: RELHIC

Where that i comes from?

Edit: I see it now, every single article was writing it in a weird way. Reionization-Limited Hi(drogen) Cloud

Whiskey_iicarus, w Astronomers learn galaxies mature faster than previously believed after analyzing detailed images of 18 galaxies located 12.5 billion light-years away
@Whiskey_iicarus@lemmy.dbzer0.com avatar

A key finding from the survey is that the galaxies are maturing faster in several ways than researchers previously believed. For one, the galaxies are more chemically enriched than expected, which means they have produced more heavy elements, in particular carbon and oxygen, than was thought possible during this early age of the cosmos.

As galaxies evolve, pockets of gas within them condense and ignite into stars. The new stars churn out heavy elements like carbon, which then become building blocks for the next generation of stars. Ultimately, these heavy elements (referred to as metals in astronomy) are required to make planetary systems, and even humans, in the case of our own solar system.

“How do metals form in less than 1 billion years? It was a surprise to see such chemically mature galaxies,” Faisst says. “It’s like seeing 2-year-old children act like teenagers.”

violentfart, w Simeis 147: The Spaghetti Nebula Supernova Remnant

Sir that’s the meatball.

200ok,

Bolognese 🧐

oracle_of_vp, w Jupiter's Clouds from Juno

Why is this so different looking compared with the previous Jupiter pictures?

antonim,

Perspective (this is a view from up/downsides, where the clouds/atmosphere behaves differently), and, I presume, different colour processing (fitting the colour spectrum into what is visible to the human eye, which is not necessarily straightforward).

porcoesphino,
@porcoesphino@mander.xyz avatar

Good question. I went looking for a source and am going to stop now but here are some links.

I suspect the source is one of the social media links here:

www.missionjuno.swri.edu/junocam/processing?id=17…

It doesn’t give much info for the specifics of how it was processed:

This processed view enhances cloud-top texture and reveals swirling filaments, compact vortices, and bright high-altitude clouds embedded in a chaotic flow.

It does list the source data for processing as this:

www.missionjuno.swri.edu/junocam/processing?id=JN…

Here is a brief summary of the instrument from one of the groups involved with the Junocam:

www.msss.com/all_projects/junocam.php

oracle_of_vp,

Wow many thanks for the background info. The picture really is amazing 😊

Luminous5481,
@Luminous5481@anarchist.nexus avatar

You can see that it’s a shot from one of the poles. Also, keep in mind that while the patterns in weather last a long time, they aren’t set in stone. The way Jupiter looks slowly changes over time, just like any other planet. Even the Big Red Spot hasn’t been there forever, and will eventually disappear.

RebekahWSD, w The Red Rectangle Nebula from Hubble
@RebekahWSD@lemmy.world avatar

Such a lovely image!

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