https://exoplanetarchive.ipac.caltech.edu/cgi-bin/TblView/np...
Download Table -> All Columns, All Rows.
Tried a few new, open, local AI models by giving them the CSV file and asking them to write a simple python script:
1. Parse all rows and build statistical distribution of mass, radius etc.
2. Use those distributions to generate fictional exoplanets.
Playing with this for a space game idea where star systems are populated with fictional exoplanets, but all their params are from the real statistical distributions of all known exoplanets.
A way to get some harder sci-fi using real world data :)
Current instruments are mostly good at finding large planets around small stars, we are basically blind to earth-like planets around sun-like stars.
See e.g. https://www.nobelprize.org/prizes/physics/2019/queloz/lectur...
I've got a little orbital dynamics simulator written in C that I've been tinkering with for the past little while. I've got the solar system planets and some asteroids going, I was going to work on moons and artificial satellites / probes next.
My goal was to tinker with simulating a solar system based economy that used Aldrin cyclers for lunar / asteroid mining.
The author of this software posts on HN quite frequently, but I can't remember their username: https://caltech-ipac.github.io/kete/
I'm playing with a space game idea of physics simulation somewhere between the fidelity of KSP and Eve Online. More robust ships and easier gameplay than KSP, but much more in-depth physics than Eve.
A bit too early (and too much AI slop code!) to share but can push to github if useful - wrote some scripts to parse the gaia DR3 release: https://gea.esac.esa.int/archive/
Parses all rows of the gdr3/Astrophysical_parameters/ files and filters out all objects within X ly of our solar system.
Same idea there as with the exoplanets; build a statistical distribution from real-world data and use it to generate fictional solar systems.
(Once heard the observation that the dinosaurs didn't go extinct because of an impact: they went extinct because they didn't have a space program.)
The business of deflecting or disintegrating planet-killer asteroids is still the stuff of science-fiction and speculation. The reality of physics is that a sufficient mass with sufficient velocity is not something we would be able to send off-course (enough to make a difference) nor could we detonate it into little harmless splinters.
Earth travels its radius in 3-4 minutes. Delay asteroid by that in its orbit and you did it
If you learn of impact 100 years in advance, your task is only 2 seconds per orbit - less than 1mm/s
Orbit uncertainty 7 and 9, aka almost- and totally-useless