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In this work, we constrain the Hubble constant parameter,$H_0$, using acombination of the Pantheon sample and galaxy clusters (GC) measurements fromminimal cosmological assumptions. Assuming the validity of the cosmic distanceduality relation, an estimator is created for $H_0$ that only depends on simplegeometrical distances, which is evaluated from Pantheon and a GC angulardiameter distance sample afterward. The statistical and systematic errors in GCmeasurements are summed in quadrature in our analysis. We find $H_0 = 67.22 \pm6.07$ ${\rm \,km\, s^{-1}\, Mpc^{-1}}$ in $1\sigma$ confidence level. Thismeasurement presents an error of around 9\%, showing that future and better GCmeasurements can shed light on the current Hubble tension.

A Hubble Constant Estimate from Galaxy Cluster and type Ia SNe Observations