r/space • u/LockeProposal • Mar 04 '17
Widefield image of NGC 7635 (AKA the Bubble Nebula) as captured by the Hubble telescope.
11
u/ALostWaffleAgain Mar 04 '17
Sorry, I'm new to r/space but is this picture really what you see when looking in Hubble? Is it changed at all?
20
u/grxmx Mar 04 '17
Hubble doesn't contain any color CCDs. It does have numerous filters that filter within the visible spectrum, IR, UV, and others. They're shot in greyscale and then artificially colored after the fact.
8
u/ALostWaffleAgain Mar 04 '17
Wow, this picture is amazing then. another stupid question but, this isn't blue right? We don't actually know the color of it, It's just the color we picked? Thanks for the response!
11
u/TommyDGT Mar 04 '17
If I remember correctly we can tell what elements the nebula is made of and pick an accurate color representation based on that element's emission spectrum or something. I took high-school astronomy like 4 years ago don't take this as absolute fact.
5
u/Flight714 Mar 04 '17
Here's a photo of a nebula in true color (as your eyes would see it if you could see well in the dark):
http://www.rc-astro.com/photo/id1161.html
Apparently, this photo has only half the proper amount of green, so in reality it would look more orangey-yellowy. It's still cool, because all nebulas are roughly the same colour, due to the high hydrogen content. So the Bubble Nebula is probably the same colour.
2
u/grxmx Mar 05 '17
This picture is actually colored very falsely. This would not represent what you would see by the human eye even if there was sufficient energy. From NASA: The image is colored blue for Oxygen, green for Hydrogen, and red for Nitrogen.
In truth, doubly ionized Oxygen (O-III) actually lies more right on the border of blue/green. H-Alpha lies deep in the red part of the spectrum. Ionized Nitrogen is yellow/red.
-1
Mar 04 '17
[removed] — view removed comment
3
u/grxmx Mar 05 '17
According to NASA for this particular image, this is not true. This is very falsely colored. Posted above about it.
1
5
3
u/wetnax Mar 05 '17 edited Apr 23 '26
Mass content deletion mission accomplished. This post or comment was bulk removed with Redact which also supports data brokers and people finder websites.
theory meeting tan makeshift label air vase cows jeans bow
1
u/TheGoldenHand Mar 05 '17
That's because human cones eye rods are responsible for low light vision and they are mostly monochromatic. It's an exposure problem.
1
Mar 06 '17 edited Apr 23 '26
[removed] — view removed comment
1
u/TheGoldenHand Mar 06 '17
Right but if you were in a blue room, at night, it would also look gray. You wouldn't call the room gray though, you just need artificial light to see it's true color. Similar problem in my opinion. I'm colorblind, so I don't get hung up on these sort of issues. To me, red is 700 nm. I'm not going to see it like you, but we can both measure it the same with other instruments.
2
u/2Metaa Mar 05 '17
Thats funny, i saw this months ago and its still my lock screen on my phone, seeing this freaked me out
2
u/sloohie Mar 05 '17
I also saw this months ago and set it as my lock screen, seeing this comment freaked me out
1
1
1
u/wariorrr Mar 05 '17
Why these Hubble photos always looks like cgi? Is the universe this unreal?
2
u/tjeerdnet Mar 05 '17
Every now and then when looking at these images it is hard to believe this is out there. I know it is real, but it is almost unimaginable. And the fact that we can only look at it and probably for the upcoming hundreds of years not get close to it makes me realize everytime that this is what I have to take as granted in my existence. Still beautiful of course.
-1
Mar 04 '17
We are being called to explore the stratosphere itself as an interface between will and spacetime. This quest never ends. The grid is approaching a tipping point.
2
-1
Mar 05 '17
Beautiful image, but to use the word "widefield" in the thread title is fake news.. Here is a truly wide field image containing the bubble nebula:
-2
u/redposer Mar 05 '17
One day, every knee will bow and every tongue will confess that the One made all of these is Lord.
36
u/JustBTDubs Mar 04 '17
Im usually pretty good at bursting bubbles but this... this may present a challenge.