EntityQ1017823· pop 9· linked from 12 articlespersonal equationSign in to saveConnectionsscienceEntityastronomyEntitystarEntitysleepEntityInternational Standard Book NumberEntityCarl JungEntitymeasurementEntitytelescopeEntityPrussiaEntityWilliam JamesEntitydigital object identifierEntityobservationEntityFriedrich BesselEntityerrorEntitybibcodeEntityexperimental psychologyEntitybiasEntityleast squares methodEntityQ22908627EntityAstronomer RoyalEntityCategoriesErrorExperimental biasHistory of astronomyMeasurement