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It is shown that an interpretation of general relativity is possible, where the cosmological constant is not a property of the intrinsic universe but instead is a parameter that describes how the universe with its redshift-distance relation appears to the observer through the interpretational framework of the FLRW metric. Its value is uniquely determined by boundary conditions and found to agree with the observed value to within 2%. The accelerated expansion reduces the time scale such that the present apparent age (as determined by standard cosmology) is about 3Gyr shorter than the intrinsic age. This difference has observable consequences. In particular, the oldest determined stellar ages provide constraints for discrimination between the cosmological frameworks. Several independent stellar diagnostics do indeed point in the direction of a larger intrinsic age.