Astronomy 1020 Exam 1 Review Questions
... 19. Whose observations did Kepler use to formulate his 3 laws of planetary motion? Of what planet were these observations made? Why was Kepler so interested in geometric solids? 20. Who is considered the father of experimental physics? Who was the first person to use a telescope to study the cosmos? ...
... 19. Whose observations did Kepler use to formulate his 3 laws of planetary motion? Of what planet were these observations made? Why was Kepler so interested in geometric solids? 20. Who is considered the father of experimental physics? Who was the first person to use a telescope to study the cosmos? ...
Slide 1
... How stars form: the basic process 1. A cold cloud of gas and dust starts to contract, pulled together by gravity. It breaks up into several smaller clouds and each continues to contract. 2. Within a contracting cloud, each particle attracts every other particle, so that the cloud collapses towards ...
... How stars form: the basic process 1. A cold cloud of gas and dust starts to contract, pulled together by gravity. It breaks up into several smaller clouds and each continues to contract. 2. Within a contracting cloud, each particle attracts every other particle, so that the cloud collapses towards ...
Stellar Evolution
... luminosity, but hotter tends to increase luminosity. The position of the newly forming star on the H-R diagram will move to the left as it heats up but wander up and down somewhat as its size shrinks. This process takes about 50 million years for a star like the sun, but may take a much shorter time ...
... luminosity, but hotter tends to increase luminosity. The position of the newly forming star on the H-R diagram will move to the left as it heats up but wander up and down somewhat as its size shrinks. This process takes about 50 million years for a star like the sun, but may take a much shorter time ...
Introduction to Accretion Phenomena in Astrophysics
... (SB1) spectroscopic binaries. • Famous SB1 - Cygnus X-1 System. ...
... (SB1) spectroscopic binaries. • Famous SB1 - Cygnus X-1 System. ...
PDF Version
... varies with the star’s intrinsic brightness. The star’s apparent brightness, which is the brightness that we can see ourselves, is equal to the intrinsic brightness divided by the square of the distance from us to the star. Astronomers used Cepheid variables in a nearby galaxy, which are all about t ...
... varies with the star’s intrinsic brightness. The star’s apparent brightness, which is the brightness that we can see ourselves, is equal to the intrinsic brightness divided by the square of the distance from us to the star. Astronomers used Cepheid variables in a nearby galaxy, which are all about t ...
Centre of Mass
... • For life to exist on a palnet, it must also be in the habitable zone. This is the region in the solar system which is neither too hot nor too cold, but just right. Astronomers believe that in other solar systems, too, such habitable zones exist and life is more probable in those planets which fall ...
... • For life to exist on a palnet, it must also be in the habitable zone. This is the region in the solar system which is neither too hot nor too cold, but just right. Astronomers believe that in other solar systems, too, such habitable zones exist and life is more probable in those planets which fall ...
Project “COLOR” due TODAY
... (C) You would receive the same amount of light from both situations described in choices “A” and “B” (D) None of the above ...
... (C) You would receive the same amount of light from both situations described in choices “A” and “B” (D) None of the above ...
formation of stars
... in a relatively short few million years. When fusion has stopped, it leaves a central iron core. As the star starts to cool, the core collapses. With the collapse, the pressures and temperatures within the core rise dramatically and the iron nuclei become fused into heavier elements. In a rush towar ...
... in a relatively short few million years. When fusion has stopped, it leaves a central iron core. As the star starts to cool, the core collapses. With the collapse, the pressures and temperatures within the core rise dramatically and the iron nuclei become fused into heavier elements. In a rush towar ...
binary stars - El Camino College
... the same gas cloud. Only about 30% of all stars are single, like the Sun. The distances between companion stars ranges from less than 10 million miles (0.1 AU), to over 10,000 AU. Similarly, the time it takes stars to orbit each other varies from a few hours to a million years or more! For reference ...
... the same gas cloud. Only about 30% of all stars are single, like the Sun. The distances between companion stars ranges from less than 10 million miles (0.1 AU), to over 10,000 AU. Similarly, the time it takes stars to orbit each other varies from a few hours to a million years or more! For reference ...
Earth in the Universe
... Evolution of Solar System • About 5 billion years old. Started as a gas cloud many times the size of today’s solar system. Gravitation caused the cloud to condense, most of the mass was pulled to the center and formed our sun. • After Earth and other planets were formed, their gravity pulled on oth ...
... Evolution of Solar System • About 5 billion years old. Started as a gas cloud many times the size of today’s solar system. Gravitation caused the cloud to condense, most of the mass was pulled to the center and formed our sun. • After Earth and other planets were formed, their gravity pulled on oth ...
Star Light, Star Bright: Exploring how stars are classified
... such that a value greater than 1 means it is that many times the sun's luminosity. A value less than one means it is that fraction of the sun's value. 4. Allow time for the groups to become familiar with the stars and encourage the groups to write down what they are noticing. 5. Encourage the childr ...
... such that a value greater than 1 means it is that many times the sun's luminosity. A value less than one means it is that fraction of the sun's value. 4. Allow time for the groups to become familiar with the stars and encourage the groups to write down what they are noticing. 5. Encourage the childr ...
Characteristics of Stars
... f. shines brightly in the center of a distant galaxy because of the friction of material spiraling around it ...
... f. shines brightly in the center of a distant galaxy because of the friction of material spiraling around it ...
Sun - TeacherWeb
... The sun is: a medium sized star 92% H and 8% He yellow and middle aged 5 billion years old When the H runs out, the sun swells up to become a Red Giant as large as the orbit of Mars. ...
... The sun is: a medium sized star 92% H and 8% He yellow and middle aged 5 billion years old When the H runs out, the sun swells up to become a Red Giant as large as the orbit of Mars. ...
Patterns in the Sky
... of celestial objects. 2. Celestial objects in the Solar System have unique properties. 3. Some celestial objects can be seen with the unaided eye and can be identified by their motion. 4. The Sun emits light and other forms of radiant energy that are necessary for life to exist on Earth. 5. Satellit ...
... of celestial objects. 2. Celestial objects in the Solar System have unique properties. 3. Some celestial objects can be seen with the unaided eye and can be identified by their motion. 4. The Sun emits light and other forms of radiant energy that are necessary for life to exist on Earth. 5. Satellit ...
31_Finding Earths
... Lots of chances for a nearby supernova. Oort cloud of comets constantly being disturbed by passing stars. Radiation from nearby neutron stars and black holes. The downtown area may have too much “crime” and violence. Not a good place to raise kids. ...
... Lots of chances for a nearby supernova. Oort cloud of comets constantly being disturbed by passing stars. Radiation from nearby neutron stars and black holes. The downtown area may have too much “crime” and violence. Not a good place to raise kids. ...
CelestialSphere
... The outer planets appear to make strange reversals in their motion against the stars. This is due to the fact that the Earth moves around the Sun faster than they do, causing us to overtake them periodically, during which time they appear to move “backwards” in the sky. This caused a lot of headache ...
... The outer planets appear to make strange reversals in their motion against the stars. This is due to the fact that the Earth moves around the Sun faster than they do, causing us to overtake them periodically, during which time they appear to move “backwards” in the sky. This caused a lot of headache ...
CelestialSphere02
... The outer planets appear to make strange reversals in their motion against the stars. This is due to the fact that the Earth moves around the Sun faster than they do, causing us to overtake them periodically, during which time they appear to move “backwards” in the sky. This caused a lot of headache ...
... The outer planets appear to make strange reversals in their motion against the stars. This is due to the fact that the Earth moves around the Sun faster than they do, causing us to overtake them periodically, during which time they appear to move “backwards” in the sky. This caused a lot of headache ...
Corvus (constellation)
Corvus is a small constellation in the Southern Celestial Hemisphere. Its name comes from the Latin word ""raven"" or ""crow"". It includes only 11 stars with brighter than 4.02 magnitudes. One of the 48 constellations listed by the 2nd-century astronomer Ptolemy, it remains one of the 88 modern constellations. The four brightest stars, Gamma, Delta, Epsilon, and Beta Corvi from a distinctive quadrilateral in the night sky. The young star Eta Corvi has been found to have two debris disks.