HD 133002 (HR 5596) is a possible binary[9] star in the northern constellation of Ursa Minor. With an apparent visual magnitude of 5.65,[4] it is faintly visible to the naked eye. (According to the Bortle scale, it can be viewed from dark rural skies.) The high declination of +82.5°[1] means it is hidden from view from most of the southern hemisphere. Parallax measurements yield an estimated distance of around 142 light years from the Sun.[1] If it was instead positioned at a distance of 33 ly (10 pc), this would be a second magnitude star.[3] The system is drifting closer with a heliocentric radial velocity of −44 km/s.[3]

This is an F-type main sequence star with a stellar classification of F9 V.[3] It is estimated to have 51% greater mass than the Sun, and is younger with an age of around 2.8 billion years.[5] The projected rotational velocity along the star's equator is a relatively leisurely 5.2 km/s.[7] The star is considered a photometric solar analog, although it is deficient in elements more massive than helium when compared to the Sun.[11] The chemical composition and relatively low surface gravity for a star of its classification suggest that this may instead be a subgiant star that is in the process of evolving away from the main sequence.[12] The effective temperature of the star's photosphere is 5,599 K,[6] giving it the yellow-white hue of an F-type star.[13]

This star has been examined for evidence of an infrared excess, but none was detected.[14] During a 2006−2007 survey of nearby stars, it was discovered that HD 133002 has a low-mass common proper motion stellar companion. This object has an estimated 15% of the Sun's mass. It has a projected separation of around 80 AU from the primary, which suggests an orbital period of roughly 700 years. At present, there is insufficient observational data available to determine orbital elements.[9]

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