Chapter 30 Section 2 Handout
... Unlike a nova, a white dwarf can sometimes accumulate so much mass on its surface that gravity overwhelms the outward pressure. The star collapses and is so dense that the outer layers rebound and explode. ...
... Unlike a nova, a white dwarf can sometimes accumulate so much mass on its surface that gravity overwhelms the outward pressure. The star collapses and is so dense that the outer layers rebound and explode. ...
Constellation, Star, and Deep Sky Object
... Magnitude scales: The smaller the magnitude number, the brighter the star Every 5 magnitudes = 100 times the brightness of object Every magnitude = 2.512 times the brightness of object Apparent magnitude = the brightness of object as seen from the viewer’s viewpoint (Earth) Absolute magnitude = “tru ...
... Magnitude scales: The smaller the magnitude number, the brighter the star Every 5 magnitudes = 100 times the brightness of object Every magnitude = 2.512 times the brightness of object Apparent magnitude = the brightness of object as seen from the viewer’s viewpoint (Earth) Absolute magnitude = “tru ...
Constellation
... pearls' surrounding an Exploding Star Two decades ago, astronomers spotted one of the brightest exploding stars in more than 400 years. This image shows the entire region around the supernova. The most prominent feature in the image is a ring with dozens of bright spots. A shock wave of material unl ...
... pearls' surrounding an Exploding Star Two decades ago, astronomers spotted one of the brightest exploding stars in more than 400 years. This image shows the entire region around the supernova. The most prominent feature in the image is a ring with dozens of bright spots. A shock wave of material unl ...
Characteristics of stars powerpoint
... Distances to the Stars: •Distances are so large that kilometers are not very practical •Instead astronomers use a unit called a light-year ...
... Distances to the Stars: •Distances are so large that kilometers are not very practical •Instead astronomers use a unit called a light-year ...
Amie Bickert - ColonialAcademyScience
... White dwarf: blue-white core of the star that is left behind cools forms this. Supernovas: an explosion of a suergiant Neutron star: the remains of high-mass stars. Black holes- an object with gravity so strong that nothing, not even light, can escape. Guided Practice: T. and Ss. read se ...
... White dwarf: blue-white core of the star that is left behind cools forms this. Supernovas: an explosion of a suergiant Neutron star: the remains of high-mass stars. Black holes- an object with gravity so strong that nothing, not even light, can escape. Guided Practice: T. and Ss. read se ...
Life Cycle of a Star worksheet
... some of the gas and dust in a nebula together. The contracting cloud is then called a ___________. A protostar is the earliest stage of a star’s life. A star is born when the gas and dust from a nebula __________________________________________________________________________. Once a star has “turne ...
... some of the gas and dust in a nebula together. The contracting cloud is then called a ___________. A protostar is the earliest stage of a star’s life. A star is born when the gas and dust from a nebula __________________________________________________________________________. Once a star has “turne ...
Supernovae Oct 19 − Supernova 1987A
... Sirius A, a main-sequence star Sirius B, an earth-sized white dwarf ...
... Sirius A, a main-sequence star Sirius B, an earth-sized white dwarf ...
Lecture 14 - Center for Astrophysics and Space Astronomy CASA
... White Dwarf Collapse As WD starts to collapse, the material falls through the gravitational field of the star. It heats very rapidly. In just a few seconds it reaches >100,000,000K. Carbon and Oxygen ignite and burn by fusion to even heavier elements. The whole star explodes in a frenzy of nuclear ...
... White Dwarf Collapse As WD starts to collapse, the material falls through the gravitational field of the star. It heats very rapidly. In just a few seconds it reaches >100,000,000K. Carbon and Oxygen ignite and burn by fusion to even heavier elements. The whole star explodes in a frenzy of nuclear ...
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.