noun
astronomy : the change of the apparent place of one object relative to a second object near it due to atmospheric refraction ; also : the correction necessary to fix the two places accurately
noun
astronomy : the change of the apparent place of one object relative to a second object near it due to atmospheric refraction ; also : the correction necessary to fix the two places accurately
Webster's New International English Dictionary. Новый международный словарь английского языка Webster. 2012