Handout Life of Stars
... variety of atoms we see in the universe around us. The Sun’s own gravity traps and squeezes this ultra-hot gas into a confined space, thus generating enough heat for the fusion reaction to take place. The process remains in equilibrium as long as it retains enough fuel to create this heat- and light ...
... variety of atoms we see in the universe around us. The Sun’s own gravity traps and squeezes this ultra-hot gas into a confined space, thus generating enough heat for the fusion reaction to take place. The process remains in equilibrium as long as it retains enough fuel to create this heat- and light ...
Small images
... Some, in gamma-rays, are as bright as the planet Venus. Most are as bright as the visible stars. It is only because of the Earth s atmosphere and the fact that our eyes are not sensitive to gamma-rays that keep us from seeing them frequently. They were discovered in the late 1960’s by satellites orb ...
... Some, in gamma-rays, are as bright as the planet Venus. Most are as bright as the visible stars. It is only because of the Earth s atmosphere and the fact that our eyes are not sensitive to gamma-rays that keep us from seeing them frequently. They were discovered in the late 1960’s by satellites orb ...
February 2008
... the Sun. That is why the hot days of Summer are called “the Dog Days of Summer”. You can dazzle your friends with that little piece of trivia. The Egyptians used Sirius as a calendar indicator because it was bright and it was easy to mark it’s yearly arrival. On January 1st this year, Sirius was rig ...
... the Sun. That is why the hot days of Summer are called “the Dog Days of Summer”. You can dazzle your friends with that little piece of trivia. The Egyptians used Sirius as a calendar indicator because it was bright and it was easy to mark it’s yearly arrival. On January 1st this year, Sirius was rig ...
Week 11
... like iron into space. If you find a star that has a smaller abundance of iron than the Sun, it is A. probably younger than the Sun. B. probably older than the Sun. C. not possible to tell the star’s age ...
... like iron into space. If you find a star that has a smaller abundance of iron than the Sun, it is A. probably younger than the Sun. B. probably older than the Sun. C. not possible to tell the star’s age ...
Unit 60 to 79
... 9) You observe two similar star clusters, which you label X and Y. You collect enough spectroscopic data on X and Y to plot their H-R diagrams. You discover that the most luminous main-sequence star in X is nearly 10 times brighter than Y. What do you conclude from this? a. X is larger cluster than ...
... 9) You observe two similar star clusters, which you label X and Y. You collect enough spectroscopic data on X and Y to plot their H-R diagrams. You discover that the most luminous main-sequence star in X is nearly 10 times brighter than Y. What do you conclude from this? a. X is larger cluster than ...
Star Life Cycle Review 1. What is the first stage of star creation? A
... 12. What are the two variables that are incorporated in the Hertzsprung-Russell diagram? A. a star's luminosity (brightness) and its distance from earth B. a star's age and its distance from earth C. a star's age and its surface temperature D. a star's luminosity (brightness) and its surface temper ...
... 12. What are the two variables that are incorporated in the Hertzsprung-Russell diagram? A. a star's luminosity (brightness) and its distance from earth B. a star's age and its distance from earth C. a star's age and its surface temperature D. a star's luminosity (brightness) and its surface temper ...
1” “Sky-Notes” of the Open University Astronomy Club. June 2005. A
... Up to date details of comets may be found on a number of astronomy web sites such as the BAA Comet Section web page at www.ast.cam.ac.uk/-jds. ...
... Up to date details of comets may be found on a number of astronomy web sites such as the BAA Comet Section web page at www.ast.cam.ac.uk/-jds. ...
answers
... luminous. The galaxies contain 100’s of millions of stars and are 100’s of millions times more luminous. You can tell which objects are stars because of the lines that stick out from it. This is an effect of the optics. 7) The image above right shows galaxy NGC 4526 and near the bottom left you can ...
... luminous. The galaxies contain 100’s of millions of stars and are 100’s of millions times more luminous. You can tell which objects are stars because of the lines that stick out from it. This is an effect of the optics. 7) The image above right shows galaxy NGC 4526 and near the bottom left you can ...
Stars - staff.harrisonburg.k12.va
... 4. Measuring the Distance to Stars • We measure the distance between objects in space using PARALLAX. – Parallax is the apparent change in position of a star in the sky when viewed from two different positions in earth’s revolution. – The closer a star is, the larger its parallax, or apparent movem ...
... 4. Measuring the Distance to Stars • We measure the distance between objects in space using PARALLAX. – Parallax is the apparent change in position of a star in the sky when viewed from two different positions in earth’s revolution. – The closer a star is, the larger its parallax, or apparent movem ...
Chapter 13 - USD Home Pages
... require a temperature of 600 million K (pg 387). This is a lot hotter than the 10 million K for hydrogen fusion because the carbon nuclei are heavier and have a charge of +6, which gets squared. Oxygen, with a charge of +8, is even more difficult to fuse. The interior of a white dwarf never gets thi ...
... require a temperature of 600 million K (pg 387). This is a lot hotter than the 10 million K for hydrogen fusion because the carbon nuclei are heavier and have a charge of +6, which gets squared. Oxygen, with a charge of +8, is even more difficult to fuse. The interior of a white dwarf never gets thi ...
Friday, August 28 - Otterbein University
... • Their positions are related because – the direction of Polaris defines the rotation axis of the celestial sphere – The sun is somewhere on the sphere – From a “skewed” perspective everything on the sphere culminates on the meridian ...
... • Their positions are related because – the direction of Polaris defines the rotation axis of the celestial sphere – The sun is somewhere on the sphere – From a “skewed” perspective everything on the sphere culminates on the meridian ...
Nuclear Interactions in Supernovae .
... an enormous amount of energy is released from all the hydrogen being fused in a short amount of time. • This causes an explosion on the surface of the dwarf, which doesn’t affect the star, but increases its brightness by 50,000 to 100,000 times that of the sun. ...
... an enormous amount of energy is released from all the hydrogen being fused in a short amount of time. • This causes an explosion on the surface of the dwarf, which doesn’t affect the star, but increases its brightness by 50,000 to 100,000 times that of the sun. ...
That is an irrelevant question, Ms Gajda, there was no
... The farther an object is (from Earth), the faster it moves away (from Earth) 2. What did Edwin Hubble observe in space to show that the universe is expanding? Explain. He observed a “red shift”, which is that he saw that as light moved away from its source, the light became more and more red. 3. The ...
... The farther an object is (from Earth), the faster it moves away (from Earth) 2. What did Edwin Hubble observe in space to show that the universe is expanding? Explain. He observed a “red shift”, which is that he saw that as light moved away from its source, the light became more and more red. 3. The ...
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.