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Webb captures iconic Horsehead Nebula in unprecedented detail

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Re: Webb captures iconic Horsehead Nebula in unprecedented detail

#211

Post by ridgeguy »

HumblyTossed wrote: post #59
itishappy wrote: post #10

Wow. The NIRCam image is probably going to be the most exciting new photo, but I can't get over how well MIRI reveals the internal structure of the nebula. NIRCam: https://www.esa.int/ESA_Multimedia/Images/2024/04/Horsehead_... MIRI: https://www.esa.int/ESA_Multimedia/Images/2024/04/Horsehead_... Comparison: https://www.esa.int/ESA_Multimedia/Images/2024/04/Slider_Too...

Crazy how many galaxies are in that one photo (in the background).

A few years ago, I calculated that there are approximately one Mole (6e23) of stars in the visible universe. That was a fun result.

Re: Webb captures iconic Horsehead Nebula in unprecedented detail

#212

Post by bufferoverflow »

afterburner wrote: post #67
HumblyTossed wrote: post #59

Earlier quoted context omitted.

Crazy how many galaxies are in that one photo (in the background).

Number of stars in the Milky Way: 100 billion Number of galaxies in the universe: 200 billion to 2,000 billion

100 billion is the low end estimate for our galaxy.

400 billion is the high end.

Re: Webb captures iconic Horsehead Nebula in unprecedented detail

#213

Post by notdang »

peeters wrote: post #166
cconstantine wrote: post #162

Absolutely incredible. For a little bit of context for how impressive this is, here's my take on it with a consumer grade 8" Newtonian telescope from my backyard: https://www.astrobin.com/full/w4tjwt/0/

I mean I don't know if I'm more impressed by their level of detail from a $10 billion telescope or your level of detail from a consumer-grade telescope!

Once in a while, I have the impulse to buy the equipment to make these kinds of photos, then I check the price (at least 4k USD), realize I am not from US and cool down tell next time.

It's consumer level, but not cheap at all.

Re: Webb captures iconic Horsehead Nebula in unprecedented detail

#214

Post by alistairSH »

cconstantine wrote: post #198
gregorymichael wrote: post #194

Earlier quoted context omitted.

One of my favorite comments ever on HN. I’m big into photography and yet learned something on nearly every bullet. Thank you!

Well, if you think photography is too easy you could try taking up astrophotograhy :)

The exact opposite for me! I have a hard enough time getting composition and exposure correct shooting stuff here on Earth!

Re: Webb captures iconic Horsehead Nebula in unprecedented detail

#215

Post by spenczar5 »

notdang wrote: post #213
peeters wrote: post #166

Earlier quoted context omitted.

I mean I don't know if I'm more impressed by their level of detail from a $10 billion telescope or your level of detail from a consumer-grade telescope!

Once in a while, I have the impulse to buy the equipment to make these kinds of photos, then I check the price (at least 4k USD), realize I am not from US and cool down tell next time. It's consumer level, but not cheap at all.

Its all relative, right? The cost is about a millionth of the JWST image. A millionth!

Re: Webb captures iconic Horsehead Nebula in unprecedented detail

#217

Post by mensetmanusman »

layer8 wrote: post #127
deanCommie wrote: post #114

Earlier quoted context omitted.

I don't understand people that aren't filled with dread with this concept. And I understand why so many humans fall back to something like religion to cope. It's the only way it seems to become complacent with our role in the cosmic horror. I know all the intellectual arguments for optimistic nihilism. I vote in elections even though my "one vote" doesn't matter amongst millions, and in some degree my single human li…

The change is too slow for anyone to be personally affected by it. Besides, the universe as such is devoid of any meaning; meaning is only something that we create internally. The fact that we dread voids and emptiness is also a result of evolutionary needs, there is no “dread” outside of us.

Humans are the universe defining meaning.

Re: Webb captures iconic Horsehead Nebula in unprecedented detail

#218

Post by the_af »

seabass-labrax wrote: post #190
the_af wrote: post #49

Earlier quoted context omitted.

> it's hard not to get all philisophical and wonder about the size of space & time on cosmic scale Indeed! Never a bad time to re-watch Cosmos and (in my opinion) the awesome sequel(s) by Neil de Grasse Tyson. Is it weird to admit I even choke up during some of the episodes? (As an aside, why is it so hard to find the sequels to Cosmos in any streaming service. In my country it's not on Netflix, Disney+, Apple, HBO/M…

Neil de Grasse Tyson is still on my 'to watch' list, but you may be interested in Brian Cox's 'Wonders of the Solar System / Universe' series. From what I've heard, Brian Cox is something of the British equivalent of Tyson. 'Wonders-' is a beautifully shot series that is both educational and remains impressive over a decade on (2010-2011). The only thing that might be disappointing if you're already into astrophysics…

Wow, never even heard of Brian Cox! Will find this series you mention. Thanks for the recommendation.

I'm not a physicist of any kind so I'm ok at the "science divulgation" level.

Re: Webb captures iconic Horsehead Nebula in unprecedented detail

#219

Post by aronhegedus »

cconstantine wrote: post #162

Absolutely incredible. For a little bit of context for how impressive this is, here's my take on it with a consumer grade 8" Newtonian telescope from my backyard: https://www.astrobin.com/full/w4tjwt/0/

That’s super cool!!! Looks like quite a niche/technical hobby with amazing output. Do you mind sharing how much equipment costs to get similar results?

Re: Webb captures iconic Horsehead Nebula in unprecedented detail

#220

Post by supernovae »

cconstantine wrote: post #162

Absolutely incredible. For a little bit of context for how impressive this is, here's my take on it with a consumer grade 8" Newtonian telescope from my backyard: https://www.astrobin.com/full/w4tjwt/0/

Here is my Esprit 120mm widefield version https://www.astrobin.com/full/r97r5j/0/
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