Double stars are trouble stars 👿 ... unless you find them in your cluster and calculate their mass ratio 😇 (✨ submission by Sagar Malhotra ✨)
hey wait this is a meme page why am I talking about science something something globular clusters go brrrrr in the halo something something 😅
> stellar rotation or asteroseismology.
> compared to what the actual cluster age is (even though it was a giant star, and that should be easier to get an age for than a main sequence star!) I don't think single star ages are useful unless your star is very young (and is hence still contracting) or unless you can do something fancy with>
I think it's too common in astronomy to use isochrones to derive single star ages, it's such an inaccurate process. Someone in my group tried to derive a single star age with a bayesian isochrone fitting method for a giant star in an open cluster recently, and the age estimate is wildly wrong >
