Physics Forums » Astrophysics
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Physics Forums » Astrophysics
2d ago
How many particles (approximately) from the solar wind reach deep into the Earth's magnetic field every second. Possibly measured in mass ..read more
Physics Forums » Astrophysics
4d ago
A quasi-moon of Earth is a rock to that orbits both the Earth and Sun with the same solar orbital period as Earth ..read more
Physics Forums » Astrophysics
1w ago
So I've seen that radar can be used in space which is interesting and brings questions to mind as well as theories. Unrelated Sonar which uses sound waves don't work as sound isn't transmittable through space.
Questions:
1) What techniques are used in radar to prevent "wondering" or the radio...
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Physics Forums » Astrophysics
1w ago
I was capturing an area of the sky using my Seestar S50, and there is something in the picture that I cannot explain. The capture has been going to about 40 minutes, and during that entire time it has moved around 3mm on my screen (and it is still going).
I've looked at Stellarium, and looked...
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Physics Forums » Astrophysics
1w ago
From the article:
"Viewers in the mid- to southern latitudes of North America can look toward the Taurus constellation immediately after sunset to spot the comet. It will be just below the constellation, with the prominent 'V' shape of Taurus pointing down towards it. The comet will...
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Physics Forums » Astrophysics
2w ago
I guess that, from a statistical perspective, the linear polarization of pulsars is positively correlated with their brightness. Has there been any relevant paper discussing this issue ..read more
Physics Forums » Astrophysics
2w ago
Hello everyone, my name is Andii and I am new here. I know this may not be a relatable question to ask, but I hope someone can help me.
I have been searching for International/European and/or American astronomy and astrophysical research competitions for the past 5 months or so. I would like to...
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Physics Forums » Astrophysics
2w ago
Hi. I am working on a research paper for my high school and I am trying to calculate the mass of KELT-8b using the radial velocity values of its star. However, I am confused as to the binary mass function and what units you would use. I was under the impression you would use solar masses however...
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Physics Forums » Astrophysics
2w ago
I'm aware that the expanding universe causes galaxies to move away at a velocity proportional to distance. However, I have some interest in the velocity that the galaxy was moving at the time in the past that we are seeing at present. This must be known about because the time dilation of...
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Physics Forums » Astrophysics
2w ago
Suppose a photon from the sun's photosphere, initially traveling toward earth, is absorbed by an atom in the sun's chromosphere. The electron then transitions to its first excited state and spectral darkening is observed at a distinct wavelength on earth. I've read that the electron only stays...
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