Suhayl, Suhel, Suhail, α Carinae, CPD−52°1941, FK5 245, GC 8302, HD 45348, HIP 30438, HR 2326, SAO 234480[13]
Database references
SIMBAD
data
Canopus is the brightest star in the southern constellation of Carina and the second-brightest star in the night sky. It is also designated α Carinae, which is romanized (transliterated) to Alpha Carinae. With a visual apparent magnitude of −0.74, it is outshone only by Sirius.
Located around 310 light-years from the Sun, Canopus is a bright giant of spectral type A9, so it is essentially white when seen with the naked eye. It has a luminosity over 10,000 times the luminosity of the Sun, is eight times as massive, and has expanded to 71 times the Sun's radius. Its enlarged photosphere has an effective temperature of around 7400 K. Canopus is undergoing core helium burning and is currently in the so-called blue loop phase of its evolution, having already passed through the red-giant branch after exhausting the hydrogen in its core. Canopus is a source of X-rays, which are likely being emitted from its corona.
The prominent appearance of Canopus means it has been the subject of mythological lore among many ancient peoples. Its proper name is generally considered to originate from the mythological Canopus, who was a navigator for Menelaus, king of Sparta. The acronycal rising marked the date of the Ptolemaia festival in Egypt. In ancient India, it was named Agastya after the revered Vedic sage. For Chinese astronomers, it was known as the Old Man of the South Pole.
^"Canopus". Oxford English Dictionary (Online ed.). Oxford University Press. (Subscription or participating institution membership required.)
^ abcdevan Leeuwen, F. (2007). "Validation of the new Hipparcos reduction". Astronomy and Astrophysics. 474 (2): 653–664. arXiv:0708.1752. Bibcode:2007A&A...474..653V. doi:10.1051/0004-6361:20078357. S2CID 18759600. Vizier catalog entry
^ abcDucati, J. R. (2002). "Catalogue of Stellar Photometry in Johnson's 11-color system". CDS/ADC Collection of Electronic Catalogues. 2237: 0. Bibcode:2002yCat.2237....0D. Vizier catalog entry
^Gray, R. O.; Garrison, R. F. (1989). "The early F-type stars – Refined classification, confrontation with Stromgren photometry, and the effects of rotation". Astrophysical Journal Supplement Series. 69: 301. Bibcode:1989ApJS...69..301G. doi:10.1086/191315.
^Lopez-Cruz, O.; Garrison, R. F. (1993). "A Spectroscopic Study of High Galactic Latitude F Supergiant Stars". Luminous High-Latitude Stars. The International Workshop on Luminous High-Latitude Stars. 45: 59. Bibcode:1993ASPC...45...59L.
^Gontcharov, G. A. (2007). "Pullkovo Compilation of Radial Velocities for 39495 Hipparcos stars in a common system". Astronomy Letters. 32 (1): 759–771. arXiv:1606.08053. Bibcode:2006AstL...32..759G. doi:10.1134/S1063773706110065. S2CID 119231169. Vizier catalog entry
^ abCite error: The named reference smiljanic2006 was invoked but never defined (see the help page).
^ abcCruzalèbes, P.; Jorissen, A.; Rabbia, Y.; Sacuto, S.; Chiavassa, A.; Pasquato, E.; Plez, B.; Eriksson, K.; Spang, A.; Chesneau, O. (2013). "Fundamental parameters of 16 late-type stars derived from their angular diameter measured with VLTI/AMBER". Monthly Notices of the Royal Astronomical Society. 434 (1): 437–450. arXiv:1306.3288. Bibcode:2013MNRAS.434..437C. doi:10.1093/mnras/stt1037. S2CID 49573767.
^ abTetzlaff, N.; Neuhäuser, R.; Hohle, M. M. (January 2011). "A catalogue of young runaway Hipparcos stars within 3 kpc from the Sun". Monthly Notices of the Royal Astronomical Society. 410 (1): 190–200. arXiv:1007.4883. Bibcode:2011MNRAS.410..190T. doi:10.1111/j.1365-2966.2010.17434.x. S2CID 118629873.
^ abcDomiciano De Souza, A.; Zorec, J.; Millour, F.; Le Bouquin, J.-B.; Spang, A.; Vakili, F. (2021). "Refined fundamental parameters of Canopus from combined near-IR interferometry and spectral energy distribution". Astronomy & Astrophysics. 654: A19. arXiv:2109.07153. Bibcode:2021A&A...654A..19D. doi:10.1051/0004-6361/202140478. S2CID 237513623.
^ abAyres, Thomas R. (2018). "Cracking the Conundrum of F-supergiant Coronae". The Astrophysical Journal. 854 (2): 95. arXiv:1802.02552. Bibcode:2018ApJ...854...95A. doi:10.3847/1538-4357/aaa6d7. S2CID 119101035.
^Cite error: The named reference Testa2004 was invoked but never defined (see the help page).
^"alf Car". SIMBAD. Centre de données astronomiques de Strasbourg. Retrieved 2019-03-09.
hydrogen in its core. Canopus is a source of X-rays, which are likely being emitted from its corona. The prominent appearance of Canopus means it has been...
Canopus 2 was a single stage, sub-orbital sounding rocket that was built by Argentina. A first version, Canopus 1, was tested between 1966 and 1967. Canopus...
Two ships of the British Royal Navy have been named HMS Canopus : The first HMS Canopus (1798) was an 80-gun third-rate French ship of the line launched...
was released, the Canopus Pure3D II was praised for the fact that their cards were shorter than competitors' Voodoo 2 cards. Canopus had a reputation for...
connecting Achernar and Canopus, and the wrong side will not lead to the pole. To find the correct side, imagine that Archernar and Canopus are both points on...
The Star Canopus diving accident was an incident in Scotland in November 1978 that killed two British commercial divers. During a routine dive beside...
the Canopus Stone has proved crucial in deciphering them. There are four such decrees: The Decree of Alexandria from 243 BC; The Decree of Canopus of Ptolemy...
Canopus Lake is a small lake within Clarence Fahnestock State Park in northern Putnam County, New York, United States. The lake is about 2.4 kilometres...
United States Navy have been named Canopus after the first magnitude star Canopus in the constellation Argo. USS Canopus (AS-9) was launched in 1919 by the...
University of New York Press. ISBN 0-7914-3383-8. Wikiquote has quotations related to Canopus in Argos. Canopus in Argos: Archives Doris Lessing homepage....
Canopus Island is the southern of the two largest islands of the Canopus Islands in Holme Bay, Mac. Robertson Land, with the Canopus Rocks lying about...
at a wide angle away from the Sun was needed and Canopus filled this requirement. Subsequently, Canopus was used as a reference point in many following...
was the basis of Kashefi's 15th-century Anvār-i Suhaylī (The Lights of Canopus), which in turn was translated into Humayun-namah in Turkish. The book...
UK Antarctic Place-Names Committee after the star Canopus in the constellation of Carina. "Canopus Crags". Geographic Names Information System. United...
The Canopus Rocks are two small, low rocks lying 2 kilometres (1 nmi) northwest of Canopus Island, 2 kilometres (1 nmi) east of Nella Rock and the Sawert...
the star Canopus. Canopus Island List of Antarctic and sub-Antarctic islands This article incorporates public domain material from "Canopus Islands"...
end the Canopus Foundation provides additional technical expertise, management skills and market intelligence where needed. Since 2019 the Canopus Foundation...
Canopus Hill is located on the island of East Falkland near Stanley, the capital city of the Falkland Islands. It is named after HMS Canopus, which fired...
squadron, which was reinforced by Canopus on 18 October. At the outbreak of war and said to be in need of overhaul, Canopus had a top speed of 18 knots (33 km/h;...