Is the angular size of the black hole in the movie "interstellar ...
Oct 15, 2020 · One striking example of this that has seems counter-intuitive, is the angular size displayed for the black hole "Gargantua" in the movie Interstellar. The characters in the movie are so close to it that it can be fully displayed in great detail (see attached image: Black hole seems to cover almost/over 90 degrees of the field of view..!)
Interstellar Dust properties - Astronomy Stack Exchange
Mar 15, 2021 · While it’s true that 98% of the interstellar gas is hydrogen and helium, dust is composed of the last 2%. That is, iron, carbon, silicon, oxygen, etc. 🚫 Finally, while it’s true that blue light is absorbed or scattered more efficiently by …
terminology - Is "intrastellar" commonly used by astronomers to …
The CNET article Interstellar comet Borisov looks ordinary, making Oumuamua even weirder says:. A paper published Monday in Nature Astronomy lays out the early data on Borisov, which is just the second-ever object seen visiting our solar system from beyond.
interstellar medium - What is the diffuse ionized gas? - Astronomy ...
Oct 16, 2018 · An interstellar cloud is generally an accumulation of gas, plasma, and dust in our and other galaxies. Put differently, an interstellar cloud is a denser-than-average region of the interstellar medium, (ISM), the matter and radiation that exists in the space between the star systems in a galaxy.
What are the differences between Intergalactic Medium, …
Oct 29, 2021 · The interstellar medium (ISM) is, as you say, the gas (and dust) in between the stars, within a galaxy. It consists of molecular, neutral and ionized gas, with densities ranging from $\sim 10^{-3}$ to $\sim 10^{6}$ particles per cm $^{3}$ and temperatures ranging from a few K up to 10,000 or 20,000 K. The molecular gas is the coldest and ...
How can we know the density of particles in interstellar or ...
Jul 31, 2021 · The interstellar medium forms a small fraction of the total mass in the Galactic disc (about 30% - Chabrier 2001) and thus only 2-3% of the total inferred Galactic mass; and it is highly concentrated towards the Galactic plane and centre. Explaining the dynamics of the Galaxy requires a spherical distribution of dark matter that extends well ...
Why do comets come from our local Oort cloud instead of from ...
Dec 28, 2014 · An interstellar comet should have a large excess velocity. That is not what has been observed. The few comets that apparently are on a hyperbolic trajectory are deemed to have originated within the gravitational bounds of the solar system, with the hyperbolic orbit a result of non-gravitational forces and gravitational interactions with planets.
Interstellar movie: What is the "portal" to the other galaxy?
Jun 2, 2015 · I recently watched Interstellar with some friends and we didn't come to the same conclusion. In my opinion, the portal they use to go to the other galaxy (to visit the three planets) is not a black hole. My friends tell me it is. (warning, contains …
interstellar travel - What proportion of the universe has a …
Jan 3, 2025 · How much of the universe has a completely dark sky? To clarify, I mean “dark” to the unaided human eye. By “completely dark”, I mean there are no persisting lighted images (such as stars or galaxies)
interstellar travel - How do we know about the origin of …
The reason it is sure to have an interstellar origin is its very high speed, much larger than an object simply falling from the Oort cloud. If you could say what your objection to this is, then perhaps it would make a question. $\endgroup$