black hole
... The complexities and asymmetries seen in planetary nebulae may be due to repeated expulsions of expanding shells and oppositely directed jets—much like bipolar flows ...
... The complexities and asymmetries seen in planetary nebulae may be due to repeated expulsions of expanding shells and oppositely directed jets—much like bipolar flows ...
starwalk2 manual en
... The highlighted parameter will start changing accordingly. To make any parameter elapse automatically, tap one of them and drag the Time slider. The map sky will rotate. In order to stop that, tap the Time slider again. To return to the current time zone, tap ...
... The highlighted parameter will start changing accordingly. To make any parameter elapse automatically, tap one of them and drag the Time slider. The map sky will rotate. In order to stop that, tap the Time slider again. To return to the current time zone, tap ...
June - Fort Worth Astronomical Society
... Lupus was first catalogued by the Greek astronomer Ptolemy in the 2nd century. Even though it is an old constellation, Lupus is not associated with any myths. The constellation is home to several interesting stars and deep sky objects, including the historic supernova remnant SN 1006, the globular c ...
... Lupus was first catalogued by the Greek astronomer Ptolemy in the 2nd century. Even though it is an old constellation, Lupus is not associated with any myths. The constellation is home to several interesting stars and deep sky objects, including the historic supernova remnant SN 1006, the globular c ...
THE ORION CONSTELLATION the Great Hunter
... brightest nebulae, and is visible to the naked eye in the night sky. M42 is located at a distance of 1,344 light years and is the closest region of massive star formation to Earth. The Orion Nebula is one of the most scrutinized and photographed objects in the night sky, and is among the most intens ...
... brightest nebulae, and is visible to the naked eye in the night sky. M42 is located at a distance of 1,344 light years and is the closest region of massive star formation to Earth. The Orion Nebula is one of the most scrutinized and photographed objects in the night sky, and is among the most intens ...
B LOG - Science Centre
... (gamma Orionis), is blue giant star. Its name means “female warrior”, indicating that Orion may not have always been seen as a male hunter. Bellatrix is the closest of Orion’s stars (243 light years away). Rigel (beta Orionis) is a large bluish-white supergiant star which becomes the brightest star ...
... (gamma Orionis), is blue giant star. Its name means “female warrior”, indicating that Orion may not have always been seen as a male hunter. Bellatrix is the closest of Orion’s stars (243 light years away). Rigel (beta Orionis) is a large bluish-white supergiant star which becomes the brightest star ...
chapter17StarStuff
... • The Crab Nebula is the remnant of the supernova seen in A.D. 1054, M1, NGC 1952, Taurus A, ~6,300LY away, 3LY radius, optical and radio pulsar ...
... • The Crab Nebula is the remnant of the supernova seen in A.D. 1054, M1, NGC 1952, Taurus A, ~6,300LY away, 3LY radius, optical and radio pulsar ...
Life Cycle of a Star Lesson Plan
... but not neon, in which case an oxygen-neon-magnesium white dwarf may be formed.[7] Also, some helium white dwarfs[8][9] appear to have been formed by mass loss in binary systems. The material in a white dwarf no longer undergoes fusion reactions, so the star has no source of energy, nor is it suppo ...
... but not neon, in which case an oxygen-neon-magnesium white dwarf may be formed.[7] Also, some helium white dwarfs[8][9] appear to have been formed by mass loss in binary systems. The material in a white dwarf no longer undergoes fusion reactions, so the star has no source of energy, nor is it suppo ...
Chasing the Pole — Howard L. Cohen
... HD 8890, SAO 308 and ADS 1477 A. This last name indicates this star is double by its inclusion in Aitken’s New General Catalog of Double Stars (1932). In fact, did you know Polaris has an eighth magnitude companion, Alf UMi B, 18 arc seconds away? This star may have an orbit about Polaris that requi ...
... HD 8890, SAO 308 and ADS 1477 A. This last name indicates this star is double by its inclusion in Aitken’s New General Catalog of Double Stars (1932). In fact, did you know Polaris has an eighth magnitude companion, Alf UMi B, 18 arc seconds away? This star may have an orbit about Polaris that requi ...
A historical perspective on the discovery of neutron stars
... In 1959, Cameron constructed neutron-star models using the Skyrme equation of state for high-density matter. He found that: nuclear forces considerably stiffen the EoS the maximum mass of neutron stars Mmax ≃ 2M⊙ is much higher than that found by Oppenheimer and Volkoff neutron stars can thus be for ...
... In 1959, Cameron constructed neutron-star models using the Skyrme equation of state for high-density matter. He found that: nuclear forces considerably stiffen the EoS the maximum mass of neutron stars Mmax ≃ 2M⊙ is much higher than that found by Oppenheimer and Volkoff neutron stars can thus be for ...
Orion – The Hunter - Guild of Students
... the scorpion in the night sky as the constellations Orion and Scorpius. She placed the scorpion opposite him, so that never are the two visible at once. The sky shows him followed by his two fighting dogs, Canis Major and Minor, and fighting a bull, Taurus. Oddly, the bull is completely irrelevant t ...
... the scorpion in the night sky as the constellations Orion and Scorpius. She placed the scorpion opposite him, so that never are the two visible at once. The sky shows him followed by his two fighting dogs, Canis Major and Minor, and fighting a bull, Taurus. Oddly, the bull is completely irrelevant t ...
Here - Amateur Observers` Society of New York
... will appear that is bright enough to be seen through binoculars or even visually. For mid-northern latitude observers the best time to view this pyramid of light is after dusk in the western sky during February and March or in the pre-dawn eastern sky during September and October. There are several ...
... will appear that is bright enough to be seen through binoculars or even visually. For mid-northern latitude observers the best time to view this pyramid of light is after dusk in the western sky during February and March or in the pre-dawn eastern sky during September and October. There are several ...
SN 1054
SN 1054 is a supernova that was first observed on 4 July 1054 A.D. (hence its name), and that lasted for a period of around two years. The event was recorded in contemporary Chinese astronomy, and references to it are also found in a later (13th-century) Japanese document, and in a document from the Arab world. Furthermore, there are a number of proposed, but doubtful, references from European sources recorded in the 15th century, and perhaps a pictograph associated with the Ancestral Puebloan culture found near the Peñasco Blanco site in New Mexico.The remnant of SN 1054, which consists of debris ejected during the explosion, is known as the Crab Nebula. It is located in the sky near the star Zeta Tauri (ζ Tauri). The core of the exploding star formed a pulsar, called the Crab Pulsar (or PSR B0531+21). The nebula and the pulsar it contains are the most studied astronomical objects outside the Solar System. It is one of the few Galactic supernovae where the date of the explosion is well known. The two objects are the most luminous in their respective categories. For these reasons, and because of the important role it has repeatedly played in the modern era, SN 1054 is the best known supernova in the history of astronomy.The Crab Nebula is easily observed by amateur astronomers thanks to its brightness, and was also catalogued early on by professional astronomers, long before its true nature was understood and identified. When the French astronomer Charles Messier watched for the return of Halley's Comet in 1758, he confused the nebula for the comet, as he was unaware of the former's existence. Due to this error, he created his catalogue of non-cometary nebulous objects, the Messier Catalogue, to avoid such mistakes in the future. The nebula is catalogued as the first Messier object, or M1.