Questions tagged [star]
Questions regarding large spheres of plasma undergoing fusion.
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What's the density of Proxima Centauri's photosphere?
Proxima Centauri is a red dwarf much denser (33X on average) than the sun. Yet I'm not finding anything about Proxima Centauri's photosphere. The Sun's photosphere is only 0.2 g/m3 (1/10,000th of sea ...
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Is it theoretically possible for the Sun to go dark?
If photons potentially take millions/billions of years to find their way to the surface of the Sun from the core, bouncing off billions of other atoms on their way. Is it theoretically possible to ...
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Are spectral subtypes a logarithmic scale, or a linear one?
Are spectral subclasses logarithmic? I can't seem to find any source on whether they're linear or logarithmic. For reference, by spectral subtypes I mean, for example, G2 vs G3 stars.
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python question-discrepancy between number of stars found
Ok, I get that this is a long question but it's ok if you don't know just thought I'd give this a try anyway. I get that it's a long shot. Basically I'm trying to replicate a methodology used in the ...
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When a star enters a red giant phase, does the pressure in its core increase or decrease?
When a star becomes a red giant, does the pressure in its core increase or decrease?
From one side, the only source of pressure in a star is gravity. A red giant is much larger than an ordinary star, ...
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What was the first nebulae of the first class?
On Wikipedia, it describes the Tarantula nebula as
the second of the "Nebulae of the First Class",
Wikipedia says that a Nebulae of the First Class is a Nebula with no other stars visible ...
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Why do larger mass stars form quicker?
I understand that larger mass stars form faster than lower mass stars. After doing research, I found it was because they got heated faster. But wouldn't this slow down the process as the higher ...
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Is it possible that some "stars" or "black holes" have "wormholes" in their center? [closed]
Seems like if the mass of a "star" or "black hole" changed without absorbing or expelling anything, then that would be an indicator that there is a "wormhole" inside.
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Why does Helix Nebula look like an eye?
The infrared lights, the material clumps that radiate and the whole view resembling a celestial firework or giant eye
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Comprehensive Stellar Evolution Article
Is there an article that comprehensively covers stellar evolution, from start to finish. I've found articles on this, one in an introduction to a stellar evolution model, and I am searching for more. ...
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Single, binary, triple, .. fraction of star systems in our galaxy by mass
What is the fraction of single, binary, triple and so on systems as a function of one of the stars masses (or their sum)?
This can be either derived from simulation or measurement.
I feel like I have ...
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What direction do Herbig Haro outflows go from?
After doing some research about Herbig Haro objects, I found that the outflows are formed perpendicular to the circumstellar disk. Is that the same direction as the star's rotation, or is it the ...
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What element drives pulsations in T Tauri Stars?
What element drives pulsations on T Tauri stars? I understand that T Tauri stars are variable and pulsate, and I also know that other stars pulsate as well. My thinking is that a T Tauri star would ...
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Tracking variable stars?
Is there a website or application I can use do track the brightness of variable stars and notify of any unusual or particularly spectacular changes.
I am particularly interested in tracking the blaze ...
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Why does nuclear fusion generate heat?
I understand that nuclear fusion generates energy in the form of gamma-rays (as in the pp chain), but how does that translate into heat in the star's core? Or is the heat just generated by ...
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