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| Zeta Persei | |
|---|---|
| Name | Zeta Persei |
| Epoch | J2000 |
| Constellation | Perseus |
| Appmag v | 2.86 |
| Class | B1Ia |
| Distance pc | 236 |
| Luminosity | 83,000 |
| Mass | 13–20 |
| Radius | ~35 |
Zeta Persei is a bright, blue-white supergiant star in the constellation Perseus notable for its high luminosity and role as an anchor point in northern skies. It serves as a prominent object for observational campaigns by institutions such as the European Southern Observatory, Harvard College Observatory, Royal Astronomical Society, and American Astronomical Society. Zeta Persei has been included in catalogs compiled by figures like John Flamsteed, Johann Bayer, and projects such as the Hipparcos and Gaia missions.
Zeta Persei carries Bayer and Flamsteed-style identifiers used in atlases produced by Johann Bayer, John Flamsteed, and later referenced in catalogs from the Henry Draper Catalogue and the Hipparcos Catalogue. Its apparent magnitude places it alongside other bright Perseids such as Mirfak, Algol, and Atik in observing charts by the Royal Astronomical Society and amateur groups like the American Association of Variable Star Observers. Visibility of Zeta Persei from northern sites including Greenwich, Mauna Kea Observatory, and La Silla Observatory is discussed in guides by the Royal Observatory, Greenwich and outreach from the Smithsonian Astrophysical Observatory.
The star is classified as a massive supergiant with estimated mass values reported in surveys by teams at Max Planck Institute for Astronomy and Cambridge University Observatory. Radius and luminosity estimates derive from interferometric work at Palomar Observatory and photometry from Mount Wilson Observatory and the European Space Agency. Zeta Persei’s effective temperature and color indices have been measured in programs led by Harvard-Smithsonian Center for Astrophysics researchers and compared with models from groups at Princeton University and the University of Tokyo.
Spectra of Zeta Persei have been analyzed using instruments at Cerro Tololo Inter-American Observatory and the Keck Observatory, producing a consensus spectral class of B1Ia in studies published in journals of the American Astronomical Society and the Royal Astronomical Society. Elemental abundances, including helium and heavier elements, were determined through spectroscopy techniques developed at Caltech and Observatoire de Paris and compared to models from the University of Cambridge and University of California, Berkeley.
Photometric and radial-velocity monitoring programs from Hipparcos, Gaia, and long-term campaigns by the American Association of Variable Star Observers have investigated light and spectral variations attributed to pulsational behavior similar to that studied in stars by Arthur Eddington and later observers at University College London. Periodicities and nonradial pulsations have been interpreted using theories advanced at Max Planck Institute for Astrophysics and computational work from Massachusetts Institute of Technology.
Parallax and proper motion data for Zeta Persei derive from the Hipparcos and Gaia missions and were analyzed in astrometric studies at the European Space Agency and the Harvard-Smithsonian Center for Astrophysics. Its space motion and membership in stellar groups have been compared with associations cataloged by researchers at University of Chicago and the Observatoire de Strasbourg, and kinematic links to clusters discussed in papers involving the Royal Astronomical Society.
Zeta Persei sits near interstellar features mapped by surveys from the Two Micron All Sky Survey and the Infrared Astronomical Satellite, with local nebulosity investigated by teams at Space Telescope Science Institute and National Radio Astronomy Observatory. Searches for companions using adaptive optics at the W. M. Keck Observatory and interferometry at CHARA Array referenced techniques from European Southern Observatory and Cerro Paranal studies.
Zeta Persei appears in historical star catalogues by Ptolemy, Al-Sufi, and later navigational references used by mariners associated with ports such as Alexandria and Venice; its role in celestial navigation was noted in works by Nicolas-Louis de Lacaille and modern guides from the Royal Observatory, Greenwich. The star has been included in cultural sky lore collected by scholars at the British Museum and manuscripts archived at Bodleian Library and has been cited in planetarium programming by institutions like the Planetary Society.
Category:Stars