Questions tagged [milky-way]
Questions regarding the Milky Way Galaxy, the galaxy that Earth's solar system is in.
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What happens to planets as they cross the Galactic equator?
We know from research that the Solar System travels around the Galactic plane, and sometimes (periodically) dips below the Galactic equator, only to return and dip back above the Galactic equator ...
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Can someone provide an image that more reasonably shows what a human sees during ideal Milky Way viewing? Both land and sky
I recall seeing the Milky Way in 1987 from the edge of the Manzanar internment camp (Owens Valley, California). It was a Moonless night with perfectly clear skies and the location was (and still is) ...
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Double Schechter luminosity function for the Milky Way
I would like to calculate the density of MW-like galaxies using the double Schechter luminosity function:
$ \Phi(m) d m=\left[\phi_1\left(\frac{m}{m_*}\right)^{\alpha_1}+\phi_2\left(\frac{m}{m_*}\...
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Within the Milky Way, how much helium is made each second?
The Milky Way has 100-400 billion stars. Our sun is a fairly average example, and it converts 3.7× 10^38 protons to helium each second, through two different fusion pathways.
I would like to know the ...
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Radius of hydrogen cloud
I am using a 1.4 meter parabolic dish with HPBW of 10 degrees and a RTLSDR to study our milky way in hydrogen line. The structure of the galaxy is deduced as shown in the picture by plugging the ...
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Realistic description of a sunrise viewed from the asteroid belt?
I'm writing a scene for a short story and wanted to describe a sunrise scene acurately.
If someone was in some sort of craft in the asteroid belt and their craft was coming out from behind an asteroid,...
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Have gas or dust or rock accumulated in our solar system on its 20 orbits around the Milky Way?
Also,does the absence of the accumulation of anything large such as rogue planets by the solar system suggest the Milky Way has been orderly and stable for billions of years?
user52681
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S0-2 (S2) Diameter/Radius
I'm a student, I am doing an investigation about S0-2. My idea was to take the wavelength that emanates from the star.
When I saw the data from Science magazine I found a problem that was that the ...
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Motion of solar system around Milky Way
As our solar system performs its +-230 million year lap around the Milky Way, is the orientation of the ecliptic plane preserved independent of the center of our galaxy, or does the plane perserve its ...
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Dark Matter's effect on galaxy structure
One "fun fact" that's always been, well fun. Is despite what most assume, our sun does not orbit a supermassive black hole or any object at the center of our galaxy.
Recently I read an ...
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How did scientists decide the boundary of the Milky Way at Edwin Hubble times?
I know Edwin Hubble used Cepheid variables to prove the Andromeda Galaxy is not part of the Milky Way. But how did scientists at that time decide the boundary of the Milky Way?
And how did they find ...
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How do we get -0.4 mJy/beam in the the 1.28 GHz MeerKAT Galactic Center Mosaic?
Dr. Becky's Feb. 11, 2022 video Move over JWST! 5 new telescopes to get excited for makes a quick mention of this image produced by the Meerkat array and published in Heywood et al. 2022 The 1.28 GHz ...
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Are there any colored RAW photos of the Milky Way taken from space?
We can get RAW versions for many ISS images, like those of airglow, e.g. ISS043-E-143486. But all the photos of the Milky Way taken from ISS that I found were posted on Twitter (e.g. this, Flickr or ...
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What Parts of the Observable Universe have we Observed?
Everyone talks about how big the observable universe is, all of the complexity, etc... But what parts of the observable universe have we actually seen? What Parts are hidden in relative shadows? Is ...
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Did the Grus star get expelled from the Milky way because it was accelerated by the Sagittarius A black hole?
On Wikipedia there is an article that says a star may have been expelled from the Milky Way because it interacted with Sagittarius A.
Sagittarius A* from Wikipedia:
In July 2019, astronomers reported ...
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