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The star’s low metallicity and fairly high space velocity suggest that KOI-4878 is older than the Sun.

But I don't know how to calculate an estimation for the age.

KOI-4878 data on Simbad

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  • $\begingroup$ You probably want to look if it has been picked up by an asteroseismic survey. Given that its a KOI, this could be true. Ages from asteroseismology are the most accurate ones, particularly that this star is a G4. $\endgroup$ – AtmosphericPrisonEscape Oct 2 '19 at 23:22
  • $\begingroup$ @AtmosphericPrisonEscape Where would one look for that? $\endgroup$ – B--rian Mar 12 at 12:29
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    $\begingroup$ @B--rian: I would think the relevant archives should be those with accurately sampled photometric time series data, i.e. Corot, Kepler, Tess. But I see you already posted the link to the exoplanet archive, which does link all those info together, if available. If standard methods (isochrone fitting, seismology) would allow the age determination, I suspect it would already have been done. $\endgroup$ – AtmosphericPrisonEscape Mar 12 at 12:38
  • $\begingroup$ @AtmosphericPrisonEscape Thanks for the hints, made me realize that I do not understand the exoplanet archive well enough - all I see is that there is no obvious entry age. $\endgroup$ – B--rian Mar 12 at 12:48
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According to Wikipedia on KOI-4878.01 nobody did yet calculate the age of that object, but says exactly what you quoted:

its low metallicity and fairly high space velocity suggest that KOI-4878 is older than the Sun.

This supposidely relies on the following sources:

A search with the keyword KOI-4878.01 on different publication databases like arXiv or scholar.google did not help either.

Related

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