The Minor Bodies of the Solar System
... asteroids, i.e., roughly 10-9 of Earth's mass. The total number of comets, up to an including bodies with extremely eccentric orbits, with aphelia of I200 A.U., is estimated to be about 10 11 (Porter I952). In spite of this enormous number, the total mass of the comets may only be of the order I 0 2 ...
... asteroids, i.e., roughly 10-9 of Earth's mass. The total number of comets, up to an including bodies with extremely eccentric orbits, with aphelia of I200 A.U., is estimated to be about 10 11 (Porter I952). In spite of this enormous number, the total mass of the comets may only be of the order I 0 2 ...
P. LeClair - The University of Alabama
... identical loop-the-loop tracks when released from rest along the straight section (see figure below). The circular loop has radius R, and the sphere, cylinder, and pipe have radius r R (i.e., the size of the objects may be neglected when compared to the other distances involved). If h = 2.8R, whic ...
... identical loop-the-loop tracks when released from rest along the straight section (see figure below). The circular loop has radius R, and the sphere, cylinder, and pipe have radius r R (i.e., the size of the objects may be neglected when compared to the other distances involved). If h = 2.8R, whic ...
Specific Word Instruction Possible Sentences
... selection they are about to read, “Studying the Sky.” Ask students to share their knowledge of each word. If necessary, provide a brief student-friendly definition of each word. • Ancient describes someone who is very old or something from a very long time ago. • An astronomer is someone who studies ...
... selection they are about to read, “Studying the Sky.” Ask students to share their knowledge of each word. If necessary, provide a brief student-friendly definition of each word. • Ancient describes someone who is very old or something from a very long time ago. • An astronomer is someone who studies ...
Galaxies
... • Extends 50,000 light years beyond the central bulge • Forms spiral arms that contain a lot of gas and dust • Population I stars are found in the spiral arms – these are young O and B main-sequence stars – they are often found in open clusters ...
... • Extends 50,000 light years beyond the central bulge • Forms spiral arms that contain a lot of gas and dust • Population I stars are found in the spiral arms – these are young O and B main-sequence stars – they are often found in open clusters ...
UCSB CLAS
... Suppose the Sun were to shrink to half of its present radius while maintaining the same mass. What effect would this have on the Earth’s orbit? A. The size of the orbit would decrease and the orbital period would decrease. B. The size of the orbit would increase and the orbital period would increase ...
... Suppose the Sun were to shrink to half of its present radius while maintaining the same mass. What effect would this have on the Earth’s orbit? A. The size of the orbit would decrease and the orbital period would decrease. B. The size of the orbit would increase and the orbital period would increase ...
Chapter 11 Surveying the Stars How do we measure stellar
... We can determine a star’s luminosity if we can measure its distance and apparent brightness: Luminosity = 4π (distance)2 × (Brightness) ...
... We can determine a star’s luminosity if we can measure its distance and apparent brightness: Luminosity = 4π (distance)2 × (Brightness) ...
3Nov_2014
... • We can follow a stars evolution on the HR diagram. • Lower mass stars move on to the main sequence, stay for a while, and eventually move through giant stages before becoming white dwarfs • Higher mass stars move rapidly off the main sequence and into the giant stages, eventually exploding in a su ...
... • We can follow a stars evolution on the HR diagram. • Lower mass stars move on to the main sequence, stay for a while, and eventually move through giant stages before becoming white dwarfs • Higher mass stars move rapidly off the main sequence and into the giant stages, eventually exploding in a su ...
Chapter 8: Stars
... • The combination of their ideas is now called the Hertzsprung-Russell Diagram, or HR Diagram. • The HR Diagram is a graph that shows the relationship between a stars’ surface temperature and its absolute magnitude. • The modern HR Diagram is shown below. ...
... • The combination of their ideas is now called the Hertzsprung-Russell Diagram, or HR Diagram. • The HR Diagram is a graph that shows the relationship between a stars’ surface temperature and its absolute magnitude. • The modern HR Diagram is shown below. ...
1_Introduction
... In the jargon of astronomers, a “standard candle” is a light source of known luminosity. Luminosity is the rate at which light source radiates away energy (in other words, it’s the wattage). ...
... In the jargon of astronomers, a “standard candle” is a light source of known luminosity. Luminosity is the rate at which light source radiates away energy (in other words, it’s the wattage). ...
Lifetime of Stars/ Fusion powers the stars—11 Oct
... Lifetime of Stars • Lifetime = Amount of fuel/Rate of consumption – Lifetime of a tank of gas for a car – For a star • Amount of fuel = mass • Rate of consumption = luminosity ...
... Lifetime of Stars • Lifetime = Amount of fuel/Rate of consumption – Lifetime of a tank of gas for a car – For a star • Amount of fuel = mass • Rate of consumption = luminosity ...
Stars and The Universe
... Log into the publisher’s website for our book at http://www.aw-bc.com/astronomyplace/ and do the tutorials on Kepler’s Laws. Take the multiple choice quizzes for Chapter 3. c. Working with your group members, research and prepare a report on one current or recent NASA exploratory mission to an objec ...
... Log into the publisher’s website for our book at http://www.aw-bc.com/astronomyplace/ and do the tutorials on Kepler’s Laws. Take the multiple choice quizzes for Chapter 3. c. Working with your group members, research and prepare a report on one current or recent NASA exploratory mission to an objec ...
Space Study Guide
... a nebula. The dust and gas collapsed in on itself because of accretion (the coming together because of gravity) and formed the sun (same process as other stars). As the cloud collapsed, it formed into a rotating disk and spun faster and faster which caused it to flatten. Planetesimals, or particles ...
... a nebula. The dust and gas collapsed in on itself because of accretion (the coming together because of gravity) and formed the sun (same process as other stars). As the cloud collapsed, it formed into a rotating disk and spun faster and faster which caused it to flatten. Planetesimals, or particles ...
Packet 3
... would it’s absolute magnitude be? _____________ 7. Stars that are closer than 32.6 light-years away appear __________________________. Therefore those stars that are further than 32.6 light-years away appear ________________________. 8. How far away a star would be if it’s apparent magnitude and abs ...
... would it’s absolute magnitude be? _____________ 7. Stars that are closer than 32.6 light-years away appear __________________________. Therefore those stars that are further than 32.6 light-years away appear ________________________. 8. How far away a star would be if it’s apparent magnitude and abs ...
Document
... What proof is there of black holes? What proof is there that black holes are black? Why should light be affected by gravity? What proof is there that it is? ...
... What proof is there of black holes? What proof is there that black holes are black? Why should light be affected by gravity? What proof is there that it is? ...
File - Mr. Catt`s Class
... This implies that a typical star spends 90% of its luminous lifetime on the main sequence. 2. For most of these stars the next step after leaving the main sequence is to become red ...
... This implies that a typical star spends 90% of its luminous lifetime on the main sequence. 2. For most of these stars the next step after leaving the main sequence is to become red ...
PowerPoint Presentation - Small Bodies in the Solar System
... some of the ice in the comet and forms a long tail. • The comet is made out of several parts: the nucleus, dust tail, and ion tail. ...
... some of the ice in the comet and forms a long tail. • The comet is made out of several parts: the nucleus, dust tail, and ion tail. ...
Unit H557/02 - Advance Notice Article - June 2017
... the angular resolution of all optical instruments, including the human eye which has an angular resolution of about 0.02°. The story of scientific measurement is one of early approximations followed by successive improvements in techniques and instruments. For example, some early estimates of the si ...
... the angular resolution of all optical instruments, including the human eye which has an angular resolution of about 0.02°. The story of scientific measurement is one of early approximations followed by successive improvements in techniques and instruments. For example, some early estimates of the si ...
The Solar System and its Place in the Galaxy
... systems is 0.086 pc^-3. Most of these are low-mass stars, less massive and less luminous than the Sun. The nearest star to the solar system is Proxima Centauri, which is a low-mass (M~ 0.1M), distant companion to Alpha Centauri, which itself is a double-star system of two close-orbiting solar-type s ...
... systems is 0.086 pc^-3. Most of these are low-mass stars, less massive and less luminous than the Sun. The nearest star to the solar system is Proxima Centauri, which is a low-mass (M~ 0.1M), distant companion to Alpha Centauri, which itself is a double-star system of two close-orbiting solar-type s ...
Aquarius (constellation)
Aquarius is a constellation of the zodiac, situated between Capricornus and Pisces. Its name is Latin for ""water-carrier"" or ""cup-carrier"", and its symbol is 20px (Unicode ♒), a representation of water.Aquarius is one of the oldest of the recognized constellations along the zodiac (the sun's apparent path). It was one of the 48 constellations listed by the 2nd century AD astronomer Ptolemy, and it remains one of the 88 modern constellations. It is found in a region often called the Sea due to its profusion of constellations with watery associations such as Cetus the whale, Pisces the fish, and Eridanus the river.