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| Lupus (constellation) | |
|---|---|
| Name | Lupus |
| Abbreviation | Lup |
| Genitive | Lupi |
| Symbolism | the Wolf |
| Family | Hercules |
| Quadrant | SQ3 |
| Area sq deg | 334 |
| Rank | 46th |
| Lat max | 40 |
| Lat min | 90 |
| Month | July |
| Bf stars | 19 |
| Brightest star | Alpha Lupi (β? check modern catalogs) |
| Brightest mag | 2.30 |
| Nearest star | Gliese 570 |
| Nearest dist | 19.3 |
Lupus (constellation) Lupus is a southern constellation historically represented as a wolf or beast. Situated near Centaurus, Scorpius, and Libra, it contains a mix of bright stars, variable stars, and faint deep-sky objects that have been observed and catalogued by astronomers from antiquity through modern surveys.
Lupus was recognized in antiquity by observers such as Ptolemy and later by medieval Islamic astronomers like Al-Sufi; it appears in star catalogs by Johannes Hevelius and was adopted into the modern set of 88 constellations by the International Astronomical Union. Classical sources often associate the figure with myths from Greece, linking it to tales surrounding Apollo, Dionysus, and hunting motifs preserved in works by Hesiod and Homer. During the Renaissance, mapmakers like Johann Bayer and Johannes Kepler included Lupus in celestial atlases alongside contemporaries such as Tycho Brahe and Nicolas-Louis de Lacaille. Later explorers and navigators—James Cook, Vitus Bering, and crews of the HMS Endeavour—used constellations including Lupus for southern navigation referenced in charts by John Flamsteed and the Royal Observatory, Greenwich.
Lupus lies south of Zeta Centauri and between Centaurus and Scorpius in the southern celestial hemisphere. Its right ascension and declination place it best for viewing from latitudes south of Rome, Cairo, and Washington, D.C. during southern winter and mid-year months identified in almanacs by institutions like the United States Naval Observatory and Royal Astronomical Society. The constellation is visible from observatories such as Cerro Tololo Inter-American Observatory, South African Astronomical Observatory, and Anglo-Australian Observatory, and was included in surveys like the Two Micron All Sky Survey and the Gaia mission maps. Seasonal observing guides from Royal Observatory, Edinburgh and planetariums like the Griffith Observatory give charted positions relative to notable neighboring constellations including Ara, Norma, and Corona Australis.
Prominent stars in the constellation include bright blue-white giants cataloged in the Henry Draper Catalogue, such as stars participating in spectral studies by Annie Jump Cannon and radial velocity programs at Lick Observatory. Variable and spectroscopic targets within the area have been observed by teams using instruments at Palomar Observatory, Keck Observatory, and Very Large Telescope. Nearby red dwarfs and flare stars cataloged by Giclas and appearing in the Gliese Catalogue are of interest to groups like the SETI Institute and exoplanet surveys including HARPS and Kepler follow-ups. Stellar parallax measurements from Hipparcos and Gaia refined distances to members compared against proper motions in the Hipparcos Catalogue and the Tycho Catalogue. Binary and multiple systems in the constellation were subjects of interferometric work at facilities like CHARA and radio studies by the Very Long Baseline Array.
Within Lupus are globular clusters examined in catalogs by John Herschel and later imaged by Hubble Space Telescope programs; planetary nebulae and faint galaxies discovered in the New General Catalogue and Index Catalogue appear in targeted studies by Sloan Digital Sky Survey teams. Amateur and professional observations reported to the International Astronomical Union have highlighted nebulae and open clusters visible to telescopes at Mauna Kea and La Silla Observatory. Radio surveys by Parkes Observatory and x-ray observations by Chandra X-ray Observatory and XMM-Newton detected high-energy sources associated with compact objects cataloged by the Centre de Données astronomiques de Strasbourg. Infrared studies by Spitzer Space Telescope and submillimeter mapping by ALMA traced star-forming regions and dust lanes in faint galaxies cataloged by the Two-degree Field Galaxy Redshift Survey.
Objects in Lupus have been targets in research on stellar evolution and nucleosynthesis by groups at Cambridge University, Harvard–Smithsonian Center for Astrophysics, and the Max Planck Institute for Astronomy. Variable-star monitoring networks like the American Association of Variable Star Observers coordinated observations, while spectroscopic abundance analyses were performed by teams at ESO and Keck Observatory. Lupus fields were included in planet-hunting programs by European Southern Observatory instruments and in proper-motion studies informing galactic structure models developed by researchers at University of Chicago and Princeton University. High-energy phenomena observed by Fermi Gamma-ray Space Telescope and neutrino observatories like IceCube Neutrino Observatory have provoked multiwavelength campaigns involving facilities such as Swift Observatory.
Lupus appears in celestial atlases and star charts produced by Albrecht Dürer, Urania's Mirror, and lithographs distributed by Sidney Hall; it features in decorative motifs in artworks held by institutions like the British Museum, Louvre Museum, and National Museum of China. The constellation has been referenced in literature by authors drawing on classical star lore, including mentions in works associated with Virgil-era translations and modern compilations curated by the Smithsonian Institution and Library of Congress. Planetarium programs at venues such as the Morrison Planetarium and educational materials from the Royal Observatory Greenwich continue to include Lupus in public outreach and exhibitions at science centers like the Cité des Sciences et de l'Industrie.
Category:Constellations