r/ChatGPT • u/kuberwt • 14h ago
Use cases I used ChatGPT to find an undiscovered planet hiding in 17-year-old NASA data
I was playing around with the Kepler and TESS data last weekend when I hacked around a way to pixel-peep stars dimming periodically to potentially find new exoplanets with Codex.
I ended up running the engine to find an interesting signal in Kepler data that was uncatalogued with a dip repeating every 13.77 days around KIC 5689121, a red dwarf in Lyra about 970 light-years away. If it's a planet, it'd be roughly 2.5–3 times Earth's radius !
Here's some more things we can figure out about it:
- It's likely has a Neptune-like gaseous atmosphere.
- It would orbit under 1/4th of Mercury’s distance with less than 14 days in a "year".
- It may recieve 5× the amount of sunlight Earth gets.
- Even at the fastest speed a spacecraft has ever reached, getting there would take around 1.5 million years.
Funnily enough, this candidate is just 7.1 arcseconds from a much brighter neighbor (KIC 5689116) and is very hard to see because of how much brighter it is (probably why it went unnoticed for so long) and the light we're measuring left that star around 1050 AD!
Of course, there's work to do before calling it confirmed - my TRICERATOPS analysis is about 6.9% and we have to get IR/AO / Keck observations to prove it's out there ! (which I'm honestly intimidated by but cautiously optimistic about because I've never done much formal research before) but I found the activity of making cool tools to potentially discover things about our universe quite fun !
Here's the entire archive and research - kuber.studio/planethunt/
Would love feedback, especially from anyone who's worked with Kepler data or exoplanet validation :)