Jump to content

Wow. A new image of the Sun.


Aethon

Recommended Posts

That is the major upside of photographing the sun, you do not have to worry about getting enough exposure time. Too much, however, is swiftly done.

The same goes for the moon by the way, you really do not need any fancy long exposures. Slightly longer than you need for the sun tough :)

Link to comment
Share on other sites

Same applies for planets, they're rather bright, being sun-lit.

Something else a lot of people don't realize - today's pocket cameras with super zoom lenses are well capable of resolving stuff like the Jupiter's four largest moons. Some super zoom compacts have more than twice the focal length needed for that.

Link to comment
Share on other sites

The rate of energy release per unit of space in Solar core actually very, very small. It's the Sun's huge size that's responsible for so much heat. It adds up.

Our metabolism has more energy density than the Sun. ;)

I've heard that. It's kind of remarkable how slowly some things happen on the sun, and how so much of its characteristics only exist by virtue of its incredible size. Like how photons emitted in the core take millions of years to reach the surface, and how any given proton within the sun might last millions of years before finally undergoing fusion. The cores of experimental fusion reactors have to be 10-100 times as hot as the sun's core to get anywhere, and they still haven't even achieved fusion for more than a tiny fraction of a second at at time.

Link to comment
Share on other sites

This looks like a negative of an image taken in the hydrogen band. You can tell it`s a negative because what should be brightest (the middle) is darkest and what should be dark (the edge) is brightest. The hydrogen band is pretty, which is why I think it is in that band.

Also I have seen a few suns in my time, pixels etc.

Link to comment
Share on other sites

ou can tell it`s a negative because what should be brightest (the middle) is darkest and what should be dark (the edge) is brightest. The hydrogen band is pretty, which is why I think it is in that band.

Are you sure? I find both dark and bright edges in different pictures. It would be nice to have anything more solid to go on.

Link to comment
Share on other sites

I hope the HTML tags work.

http://www.universetoday.com/114209/enjoy-this-eye-meltingly-awesome-photo-of-our-sun/#more-114209

Nope. Crap. Guess you'll hafta click. Is it possible to get a file like this to show on the Forum?

[Fixed by sal_vager, click image for full size]

http://www.avertedimagination.com/images/sun082414.jpg

Lol that looks a bit fuzzy and cute lol

Link to comment
Share on other sites

To make this thread a little more complete, I'll add a bit on the Strong nuclear force. The infographic I posted earlier was not as complete as I would have liked.

http://aether.lbl.gov/elements/stellar/strong/strong.html

I don't know if this is over-simplified or very outdated, but strong nuclear force is not simply due to meson exchange. For starters, the way that meson interacts with a nucleon is via strong force.

While meson exchange plays a role in nuclear interactions, what we actually call a strong force is due to guon exchange.

Link to comment
Share on other sites

Well I'll certainly defer to you on that K^2. You are rapidly approaching Henry Spencer status in my eyes. Someone should make up some T-shirts.

For those who missed (and miss) him. http://en.wikipedia.org/wiki/Henry_Spencer

[Henry Spencer] is a highly regarded space enthusiast, and is a familiar and respected presence on several space forums on Usenet and the Internet. From 1983 to 2007 Spencer posted over 34,000 messages to the sci.space.* newsgroups. His knowledge of space history and technology is such that the "I Corrected Henry Spencer" virtual T-shirt award was created as a reward for anyone who can catch him in an error of fact.[9]

Back before sci space and sci physics turned into... well what it is today.

If you get time during the move ( and a brake from Nicholanders' honey do list :D ) could you post a better strong force explanation. My physics learnin' was a long time ago.

Link to comment
Share on other sites

  • 1 month later...

As amazing as the sun is, I find it even more amazing that there are stars out there, that can have a radius up to a 1.000 times larger than the sun, stars that weigh more than a 100 times as much as the sun and stars that shines millions of times more powerfull than the sun. :)

Like Eta Carinae:

http://en.wikipedia.org/wiki/Eta_Carinae

Or R136a1:

http://en.wikipedia.org/wiki/R136a1

Link to comment
Share on other sites

  • 2 months later...
This thread is quite old. Please consider starting a new thread rather than reviving this one.

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.
Note: Your post will require moderator approval before it will be visible.

Guest
Reply to this topic...

×   Pasted as rich text.   Paste as plain text instead

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.

×
×
  • Create New...