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Magnitude predictions of $\Lambda$CDM, as parametrized by the Planckcollaboration, are not consistent with the supernova data of the wholePantheon+ sample even when, in order to take into account the uncertainty aboutits value, the Hubble constant is adjusted. This is a likely consequence of theincrease of the number of low-redshift supernovae in the Pantheon+ sample, withrespect to previous such samples. Indeed, when supernovae at red-shifts below0.035 are ignored, $\Lambda$CDM predictions become consistent with Pantheon+data. Interestingly, this is also the case if subsets of low-redshiftsupernovae roughly centered on the direction of the CMB dipole are considered,together with high-redshift ones. These results seem robust, since they arealso obtained with a simple, single-parameter tired-light model.

A robust assessment of the local anisotropy of the Hubble constant