CMBR visualization? - Page 1
Forum section: electronics / rf-microwave

author: coppercone2
author_rank: Super Contributor
timestamp: March 07, 2025, 02:24:47 am
content: So we often see a diagram of CMBR in the shape of a egg.Is there any program or applet that lets you see it like from the inside of a sphere ?So you can essentially move the sky around with your mouse.Or similar such things for RF+ astronomyIs there like a high resolution repository of signal strength measurements that can be used to code such a program?

author: DaJMasta
author_rank: Super Contributor
timestamp: March 07, 2025, 03:52:08 am
content: I don't know of a program to remap it, but maybe if you can find the dataset you can make your own arbitrary projection.I have seen it on the outside of a beach ball used as a prop in science talksMaybe a dataset could be here?https://lambda.gsfc.nasa.gov/product/

author: Andy Chee
author_rank: Super Contributor
timestamp: March 07, 2025, 04:16:09 am
content: I wanted to get an inflatable globe, but they sold outhttps://wmap.gsfc.nasa.gov/resources/edactivity1.html

author: coppercone2
author_rank: Super Contributor
timestamp: March 07, 2025, 04:23:34 am
content: The globe idea is confusing because it shows you the interior on the exterior?? It needs to be a projection or a really big globeYou don't know the shape of the universe so assuming its a sphere could be as wrong as flat earth theory, even if you wanted to show the universe as a sphere you can rotate some howNot sure how it works exactly but I think the best you can do is show what it looks like from here at some bearing. I think the convexness of the sphere would make it very confusing?

author: coppercone2
author_rank: Super Contributor
timestamp: March 07, 2025, 04:32:41 am
content: Actually, is there some like program that is a space sky simulator that you can write the date and time and it correctly aligns everything like the planet location and everything in the sky? Then it would be simple to re-texture the sky to microwavei.e. in march 15 2025 if you look up at the sky while standing in toronto you would see some sky scapelike nasa or stargate command might have it?It seems like humans should have such a program. Science here seems super disorganized and shit when you don't have that kind of general navigation utility?. Like they should try to put every single photo of space ever in there to make it like a frequently updated thing that increases accuracy over time and lets you pick what spectrums you can see (hyperspectral imaging) where possible. Stellar cartography and more software.

author: DaJMasta
author_rank: Super Contributor
timestamp: March 07, 2025, 04:53:59 am
content: The shape of the actual universe doesn't matter for this, the shape of the observable universe is the same distance in every direction - a sphere. I think the globe makes sense because even if it's printed on the outside and is a mirror of what you see on the inside, it means that you don't have to be physically inside it, and makes it much more size-appropriate for most applications. That thin shell of mapped color is effectively what the microwave background is - the variations at the limit of observation (and thus the farthest back in time that we can see), so it seems like a pretty accurate projection too, to my understanding.Don't think there exists a mode like that for Stellarium or similar, but I also assume that importing it is probably not all that tricky a task. While fascinating, the microwave background isn't all that meaningful of a backdrop for an app like this - it represents fluctuations of milliKelvins, so unless extremely amplified the way the projections show, it would just be a solid color background in most meaningful displays with other objects. A stellarium like projection of radio astronomy objects could be a neat one too, and perhaps something exists, but it seems like usually those observations are made just referencing the optical band rather than as a map of the universe of their own.

author: coppercone2
author_rank: Super Contributor
timestamp: March 16, 2025, 03:35:32 am
content: With "layers" I think it would be interesting anyway, because you can do a overlay to see if you can find some unique property to objects within some regions (i.e. see if it effects stellar cosmology)I wonder if a 'game-like' tool like this could maybe help notice some trends or whateverI thought maybe its milikelvins, but its also effecting things over a really long time.I wonder how big a data base of every space image in raw format would take upThe whole thing with the photo-molecular effect makes me wonder if maybe MW could do something similar to some space-things, like plasma clouds or something, and cause some kind of thing to occur. Like after a super nova, half of it is one region and half of it is in another region, maybe one side will cool a bit faster over the course of a billion years, and different reactions or interactions would happen because of it. Kind of like planting two plants in soil that have very slight differences in pH.. Maybe that milikelvin difference is nothing to humans (within our rather extremely fast perception of time) but not for really big slow things.Of course this kind of analysis would need to be done by advanced programs, making this viewer tool nothing more then a planning and discussion aid (unless its more useful then that)Those new objects they found that are really fast black holes leaving a 'wake' might be a candidate to look at something in different thermal regions of CMBR ? I wonder if they are fast enough to 'seed' two different thermal regions. A viewer tool would help me understand the answer with simple overlays I think, as an example.. maybe it lowers the bar for being able to decide if you should bother trying to analyze something.

author: Simmed
author_rank: Frequent Contributor
timestamp: March 16, 2025, 03:46:55 am
content: stellarium ?*std package = 0.6million stars

author: coppercone2
author_rank: Super Contributor
timestamp: March 16, 2025, 03:48:23 am
content: I am just surprised there is not like a gigantic open source scientific effort into doing this like google earth. That's what I was looking for. Like a science toolonly 1.5gb. I thought it would be like 1.5 petabytes . It seems kind of 'weak' . And it should have partnership with all those cool space telescopes that we are paying for

author: srce
author_rank: Regular Contributor
timestamp: March 16, 2025, 01:33:08 pm
content: https://www.worldwidetelescope.org/- along with lots of other cool stuff - Set Imagery to Planck CMBClick here