Challenge to harness quantum mechanics' full power is one of the hottest topics in the scientific community. Synthesis of methods based on quantum information theory and adjacent physics areas gives rise to new interdisciplinary directions in modern science from quantum machine learning to quantum biology and, of course, quantum metrology. The talk will address the quantum assisted precision astrometry, which is also a rapidly developing area. One will learn about how photons' quantum interference phenomena allow to extract information about angular resolution in astrometrical measurements, starting with a description of the seminal Hanbury Brown and Twiss (HBT) effect and further developing a new extended technique. One wants to believe that combining an arsenal of quantum entanglement, quantum interference phenomena with capabilities of near-term detectors of photons and quantum memory devices allows achieving an unprecedented microarcsecond angular resolution for distant astronomical objects in the near future. Possible new avenues for further developments and explorations are also discussed. Further reading https://arxiv.org/abs/2010.09100