What are the small white dots filling the space between stars? Is this a camera artifact, gas/dust or something else?
Everything you see in the picture is either a star, or the glow of interstellar gas/dust. Every resolvable circle is a star.
2.5 Gigapixel Image of the Orion Constellation Took 5 Years to Complete
51–60 of 68 posts
Re: 2.5 Gigapixel Image of the Orion Constellation Took 5 Years to Complete
#52Earlier quoted context omitted.
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.
There is a tool called "rasterbator" that can print large images out tile-by-tile "Wall Art Generator" https://rasterbator.net/
Re: 2.5 Gigapixel Image of the Orion Constellation Took 5 Years to Complete
#53Earlier 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.
At some point the sensor noise swamps any signal, given your setup and processing.
So from a philosophical view every pixel holds a galaxy, but from a practical point of view sensor noise obliterates it.
I think it's reasonable to call the area in between visible stars "black" when received light is below the noise floor.
Re: 2.5 Gigapixel Image of the Orion Constellation Took 5 Years to Complete
#54Earlier quoted context omitted.
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.
There is a tool called "rasterbator" that can print large images out tile-by-tile "Wall Art Generator" https://rasterbator.net/
True. There are also large-format photograph printers that can print an amazing image four feet tall and as wide as you want: https://en.wikipedia.org/wiki/Durst#Lambda_and_Theta_photogr.... This is what was used to print the image I have.
Somewhat expensive though; best to rent time on one rather than buying your own. https://www.bayinkjet.com/products/durst-lambda-130-used
Re: 2.5 Gigapixel Image of the Orion Constellation Took 5 Years to Complete
#55Image itself in high resolution can be found here: https://orion2020v5b.spaceforeverybody.com/
Anyone have a direct link to the full image?
Re: 2.5 Gigapixel Image of the Orion Constellation Took 5 Years to Complete
#56I've never been a fan of the obligation to crank the saturation through the roof on astronomy images. I think it leads to unrealistic expectations. Any links to a more natural view?
Re: 2.5 Gigapixel Image of the Orion Constellation Took 5 Years to Complete
#57Wonderful image, it's a pleasure zooming in and exploring it!
Re: 2.5 Gigapixel Image of the Orion Constellation Took 5 Years to Complete
#58Re: 2.5 Gigapixel Image of the Orion Constellation Took 5 Years to Complete
#59I've never been a fan of the obligation to crank the saturation through the roof on astronomy images. I think it leads to unrealistic expectations. Any links to a more natural view?
Isn't this a never-ending discussion? There is no natural when you go past the naked eye. Any camera has a "filter", a development technique is a "filter"
Re: 2.5 Gigapixel Image of the Orion Constellation Took 5 Years to Complete
#60The 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…
Awesome. Is that picture taken with a regular DSLR type camera?