Questions tagged [hard-science]

REVIEW THE WIKI BEFORE USING THIS TAG! For questions that require unequivocal proof that answers are correct through the use of equations, empirical evidence, scientific papers, etc. Compare to: science-fiction, science-based and internal-consistency. This tag may not be used alone. This tag may not be used with the science-fiction, science-based, or internal-consistency tags. Flag your question for moderator attention once posted.

8 questions with no upvoted or accepted answers
Filter by
Sorted by
Tagged with
6 votes
0 answers
116 views

How to calculate the expected rotational speed of a star

I am working on fictional stars, and I want to have as many points about them as I can, and most things I found relatively easy, except for rotational speed. I am not sure exactly how to find at what ...
DanceroftheStars's user avatar
5 votes
2 answers
170 views

On Habitable Moon Systems

Context I was working on a habitable gas giant moon, but I came across an issue in that, at the acceptable distances from its parent planet (10-20 planetary Radii, according to an Artefexian video on ...
DanceroftheStars's user avatar
3 votes
0 answers
79 views

How much difference would Alpha Centauri A cause to the climate of a planet about Alpha Centauri B?

Imagine an earthlike planet in the habitable zone of Alpha Centauri B. Call it ACBc (although I am not sure ACBb has been confirmed). When ACA and ACB are closest to one another, they are about 11 AU ...
Mark Foskey's user avatar
  • 1,017
2 votes
0 answers
163 views

Plausible altitude for my planet's ring?

The numbers come (relative to Earth and the Sun respectively unless indicated otherwise) as follows: Planet: Mass: 1,32 Radius: 1,24 Gravity: 0,86 Density: 0,69 Semi-major axis: 1,24 Escape velocity: ...
El Nitromante's user avatar
1 vote
0 answers
106 views

What would the seasonal patterns be like on this world?

Here's the set up on this system I have: The sun is .99 solar mass, .97 luminosity. The world in question has the following orbital parameters: Dist: 1.253 AU Orbital Period: 1.41 (rel. to Earth) ...
Mike's user avatar
  • 83
1 vote
0 answers
153 views

Plate Tectonics/Geology on Carbon Planets

After researching on and off for a few months, I thought I had how a Carbon Planet would work down right, up to and including an ammonia-based xenobiology, but a video I saw today got me wondering if ...
Sam D. Jones's user avatar
0 votes
0 answers
127 views

If you Broke Mars' Perclorates and Benzenes How Much of an Atmosphere Would this Create?

Much of Mars is inimical to human life. While there are many problems I would like to focus on three: The low density atmosphere does not provide the pressure needed to sustain humans outside of a ...
Englishman Bob's user avatar
0 votes
0 answers
123 views

How long would my pseudo-aurorae be visible?

I have asked questions like this before, relating to a phenomenon on my planet that is called pseudo-aurorae. Background X-rays of the [O VII] forbidden line in my star are constantly forming due to ...
Neil Iyer's user avatar
  • 945