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2.5 Gigapixel Image of the Orion Constellation Took 5 Years to Complete

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Re: 2.5 Gigapixel Image of the Orion Constellation Took 5 Years to Complete

#41

Earlier quoted context omitted.

Good observation. I assume that's because it's "overexposed" to bring out the nebulas etc.? Zooming in all the way, the pure "black" areas between stars also seem to have a fair bit of sensor noise that probably plays a part too.

There are no pure black areas between stars, and that's not (just) sensor noise. It's not very wrong to say that every single pixel in that image holds at least one galaxy. If you collect enough light, you will find something interesting to look at.

https://www.nationalgeographic.com/science/phenomena/2015/04...

Re: 2.5 Gigapixel Image of the Orion Constellation Took 5 Years to Complete

#42
post #38

Earlier quoted context omitted.

> http://sguisard.astrosurf.com/Pagim/GC.html Welcome back 1999. Holy cow. Comments in good humor: 1) No preview image of what you are selling. 2) Several links are broken. One is a Flash based website!?!? Others are just no longer hosted. 3) Owww, my eyes!!! Also, Yay! Tables! I get it. If it's not broken, don't fix it. However, you are making it difficult for an interested person to make an informed purchase. I am…

Yes, it's pretty unfortunate. It was a flash-based pan-and-zoom interface for the image, since it's obviously too big for your browser to handle all at once. Now that flash is gone he does need to redo the work to host it, but that is non−trivial. You can see a very small thumbnail at http://sguisard.astrosurf.com/mini/mini-Guisard_MilkyWay_4_8... . I have the 70"×40" print on my wall right now, and it's worth it.

Wow! That is gorgeous, and not what I had envisioned, yet is exactly as advertised.

I am trying to create a gallery wall with the full image of the milky way galaxy[0], and then have close ups of different DSO printed in details. In my mind, I want to arrange it where each detail is attached via strings to their location within the [0] image CSI style.

[0]https://earthsky.org/upl/2011/08/milky_way_panorama.jpg

Re: 2.5 Gigapixel Image of the Orion Constellation Took 5 Years to Complete

#43

Earlier quoted context omitted.

There are no pure black areas between stars, and that's not (just) sensor noise. It's not very wrong to say that every single pixel in that image holds at least one galaxy. If you collect enough light, you will find something interesting to look at.

https://www.nationalgeographic.com/science/phenomena/2015/04...

Wow!

Re: 2.5 Gigapixel Image of the Orion Constellation Took 5 Years to Complete

#44
post #38

Earlier quoted context omitted.

Yes, it's pretty unfortunate. It was a flash-based pan-and-zoom interface for the image, since it's obviously too big for your browser to handle all at once. Now that flash is gone he does need to redo the work to host it, but that is non−trivial. You can see a very small thumbnail at http://sguisard.astrosurf.com/mini/mini-Guisard_MilkyWay_4_8... . I have the 70"×40" print on my wall right now, and it's worth it.

Wow! That is gorgeous, and not what I had envisioned, yet is exactly as advertised. I am trying to create a gallery wall with the full image of the milky way galaxy[0], and then have close ups of different DSO printed in details. In my mind, I want to arrange it where each detail is attached via strings to their location within the [0] image CSI style. [0] https://earthsky.org/upl/2011/08/milky_way_panorama.jpg

Oh, that could be really nice. Could also take a really big wall…

Re: 2.5 Gigapixel Image of the Orion Constellation Took 5 Years to Complete

#45
post #44

Earlier quoted context omitted.

Wow! That is gorgeous, and not what I had envisioned, yet is exactly as advertised. I am trying to create a gallery wall with the full image of the milky way galaxy[0], and then have close ups of different DSO printed in details. In my mind, I want to arrange it where each detail is attached via strings to their location within the [0] image CSI style. [0] https://earthsky.org/upl/2011/08/milky_way_panorama.jpg

Oh, that could be really nice. Could also take a really big wall…

I'll just have be sure to include a plaque that says "All images are NOT to scale"!!

Re: 2.5 Gigapixel Image of the Orion Constellation Took 5 Years to Complete

#46

The thing that surprises me is how stationary everything in space seems to be, in order for this to have been possible. But everything is moving, right? So how could a series of pictures over this long of a time work out to be so clear?

The seeming lack of movement even convinced the Greeks that the Earth is stationary: https://www.lesswrong.com/posts/noBKApHwFm8aMuvnw/link-the-g...

*some greeks. You can't fool Aristarchus though.

Re: 2.5 Gigapixel Image of the Orion Constellation Took 5 Years to Complete

#47
post #44

Earlier quoted context omitted.

Oh, that could be really nice. Could also take a really big wall…

I'll just have be sure to include a plaque that says "All images are NOT to scale"!!

Not all to the same scale, at any rate :)

I just meant the aspect ratio of the full-galaxy picture is very high; you might need a rather long wall. And then a wide room so that visitors can step back and see the whole thing. It could be amazing.

Re: 2.5 Gigapixel Image of the Orion Constellation Took 5 Years to Complete

#49
post #22

The Orion Nebula is such a difficult object to get the inner detail. At its heart are four stars known as the Trapezium, but you rarely ever see them as they over-expose so easily. With as many exposures they took to make this panel, I was hoping to have seen the Trapezium. It's not hard to understand why, as you loose so much other detail and brilliance of the nebula if you do expose for the Trapezium. There's no wo…

Orion is home to a whole bunch of stuff that the human eye cannot see that you see in this photo, especially Barnard's Loop and the Lambda Orionis Ring, which together occupy pretty much the entire size of the constellation. They are huge objects in the night sky, yet at H-alpha wavelength they appear too dim to the naked eye to see. I've been doing a lot of landscape astrophotography lately in which I show these obj…

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