NGC 3370 Spiral Galaxy
... • Stars form in clusters, with all types of stars forming. O,B,A,F,G,K,M • Spiral arms barely move, but gas clouds and stars orbit around the galaxy moving in and out of spiral arms • From the HR diagram, by far the most luminous stars are the O-type stars. Their luminosity can be 100,000 times the ...
... • Stars form in clusters, with all types of stars forming. O,B,A,F,G,K,M • Spiral arms barely move, but gas clouds and stars orbit around the galaxy moving in and out of spiral arms • From the HR diagram, by far the most luminous stars are the O-type stars. Their luminosity can be 100,000 times the ...
MS Word version
... demonstrating the Eclipsing Binary Simulator in a classroom situation. We provide these suggestions with appropriate questions (shown in bold italics) to pose to the class as an aid in promoting interactivity. We encourage instructors to adapt these suggestions to their particular educational goals ...
... demonstrating the Eclipsing Binary Simulator in a classroom situation. We provide these suggestions with appropriate questions (shown in bold italics) to pose to the class as an aid in promoting interactivity. We encourage instructors to adapt these suggestions to their particular educational goals ...
Gravitation review notes
... where FG is the gravitational force, m1 and m2 are the masses in kilograms, and r is the distance between their centers. The constant G simply links the units for gravitational force to the other quantities, and in the metric system happens to be equal to 6.67 x 10-11 Nm2/kg2. Like several other law ...
... where FG is the gravitational force, m1 and m2 are the masses in kilograms, and r is the distance between their centers. The constant G simply links the units for gravitational force to the other quantities, and in the metric system happens to be equal to 6.67 x 10-11 Nm2/kg2. Like several other law ...
iaf2001_paper (doc - 1.8 MB)
... the presence of extra-solar planets when they transit. The detectors are 4 CCD 2048x2048 pixels with a field of view of 8°2. Half is dedicated to the extra-solar planets program. By adapting both the integration time and the focus conditions, but without any change in the mission sizing, luminous fl ...
... the presence of extra-solar planets when they transit. The detectors are 4 CCD 2048x2048 pixels with a field of view of 8°2. Half is dedicated to the extra-solar planets program. By adapting both the integration time and the focus conditions, but without any change in the mission sizing, luminous fl ...
Our Fun Sun - Environmental Science Institute
... The diameter of the sun is approximately 1,391,000 km. Earth’s diameter is only about 12,750 km. Comparing the Sun’s diameter to other celestial bodies, you can see that the sun is huge. Scientists have also approximated the mass of the sun which can help find the gravitational force that the sun e ...
... The diameter of the sun is approximately 1,391,000 km. Earth’s diameter is only about 12,750 km. Comparing the Sun’s diameter to other celestial bodies, you can see that the sun is huge. Scientists have also approximated the mass of the sun which can help find the gravitational force that the sun e ...
phys-1600 - Dave Heppenstall
... • It has been discovered that the speed of the rotation of young dust discs varies dependant on the distance from the central star, just like our own solar system. • Using a "coronagraph," it is now possible to study older gas discs around older stars. Before now, the star was simply too bright to o ...
... • It has been discovered that the speed of the rotation of young dust discs varies dependant on the distance from the central star, just like our own solar system. • Using a "coronagraph," it is now possible to study older gas discs around older stars. Before now, the star was simply too bright to o ...
PHYSICS – Astrophysics Section I
... temperature of the star can be deduced from the Plank black-body radiation curves. The closer the dominant wavelength is to the blue end of the spectrum the higher the surface temperature. Rotational velocity- If a star is rotating, one side will be red-shifted and one side will be blue-shifted. Thi ...
... temperature of the star can be deduced from the Plank black-body radiation curves. The closer the dominant wavelength is to the blue end of the spectrum the higher the surface temperature. Rotational velocity- If a star is rotating, one side will be red-shifted and one side will be blue-shifted. Thi ...
The Dynamics-Based Approach to Studying Terrestrial Exoplanets
... Less than ten years elapsed from the first discovery of a sub-Jupiter-mass companion to a Sunlike star (Mayor & Queloz 1995) to the first direct detection of light emitted from such an exoplanet (Deming et al. 2005; Charbonneau et al. 2005). This field of astrophysics is currently in an observationa ...
... Less than ten years elapsed from the first discovery of a sub-Jupiter-mass companion to a Sunlike star (Mayor & Queloz 1995) to the first direct detection of light emitted from such an exoplanet (Deming et al. 2005; Charbonneau et al. 2005). This field of astrophysics is currently in an observationa ...
Lect15-3-23-11-stars..
... reached the main sequence for the Pleiades cluster. The previous slide indicates that only stars of about one solar mass or more have had time to reach the main sequence by now. ...
... reached the main sequence for the Pleiades cluster. The previous slide indicates that only stars of about one solar mass or more have had time to reach the main sequence by now. ...
Galaxy Characteristics
... Core brightness - radius/overall luminosity Large Luminosity Ellipticals faint core large core radius Shape Large Ellipticals – more spherical (E0) Motion of stars – very random Virial Theorem – relation of kinetic energy to potential (gravitational) energy of a system ...
... Core brightness - radius/overall luminosity Large Luminosity Ellipticals faint core large core radius Shape Large Ellipticals – more spherical (E0) Motion of stars – very random Virial Theorem – relation of kinetic energy to potential (gravitational) energy of a system ...
Glossary of terms - Universal Workshop
... equator: every rotating body has one. The plane of rotation of the Earth cuts the Earth’s surface at the terrestrial equator and is projected out into the sky to cut the celestial sphere as the celestial equator. This is a great circle, equidistant from the two celestial poles, and dividing the sky ...
... equator: every rotating body has one. The plane of rotation of the Earth cuts the Earth’s surface at the terrestrial equator and is projected out into the sky to cut the celestial sphere as the celestial equator. This is a great circle, equidistant from the two celestial poles, and dividing the sky ...
PLANET VISIBILITY Appearance of the planets
... appearance. Twinkling is caused by turbulence in the atmosphere which has a greater effect on the light coming from point sources (stars) than on the light from much closer planets which are not point sources. Another pointer to identifying planets is that they are usually one of the brightest of th ...
... appearance. Twinkling is caused by turbulence in the atmosphere which has a greater effect on the light coming from point sources (stars) than on the light from much closer planets which are not point sources. Another pointer to identifying planets is that they are usually one of the brightest of th ...
July 2013 - Skyscrapers, Inc.
... CB radios were a great thing while travelling on the highway. Huge convoys of cars and trucks would form, their drivers all talking to each other. You could acquire a funny handle. Everybody and his brother rushed out to get a CB radio. Sadly though, ...
... CB radios were a great thing while travelling on the highway. Huge convoys of cars and trucks would form, their drivers all talking to each other. You could acquire a funny handle. Everybody and his brother rushed out to get a CB radio. Sadly though, ...
CHAPTER 5,Planetary Orbits
... Equation (5-B.1) works best when the planet and the Sun are both near the celestial equator. For most problems, we can then assume that sunrise is 06:00, upper transit (UT) for the Sun is 12:00, and sunset is at 18:00. Do not use A.M. or P.M. in the above equation; use a 24 hour clock only. If the S ...
... Equation (5-B.1) works best when the planet and the Sun are both near the celestial equator. For most problems, we can then assume that sunrise is 06:00, upper transit (UT) for the Sun is 12:00, and sunset is at 18:00. Do not use A.M. or P.M. in the above equation; use a 24 hour clock only. If the S ...
Astronomy 100—Exam 1
... 9. Your friend, living on a planet 100 light-years away from the earth, has just sent to you a short message to inform you that she has just given birth to a baby. What is the age of the baby when you receive the message on the earth? A. The baby was just born. D. The baby is about 1 day old. B. The ...
... 9. Your friend, living on a planet 100 light-years away from the earth, has just sent to you a short message to inform you that she has just given birth to a baby. What is the age of the baby when you receive the message on the earth? A. The baby was just born. D. The baby is about 1 day old. B. The ...
MS PowerPoint - National Schools` Observatory
... Distance : Astronomers have calculated that Barnard’s star is 5.98 light-years away, but given the inexact nature of our measurement process, you are doing well if you get within 2 light-years of that value. Velocity : The official value is around 90 km/sec, but again, if you get within 20% of that ...
... Distance : Astronomers have calculated that Barnard’s star is 5.98 light-years away, but given the inexact nature of our measurement process, you are doing well if you get within 2 light-years of that value. Velocity : The official value is around 90 km/sec, but again, if you get within 20% of that ...
02.03 Distances in Space Assignment To prepare for this visit you
... To prepare for this visit you will create something that you can use to teach them about what we have learned. Here are some ideas: brochure video or movie Poster Presentation (PowerPoint or Word) story book ...
... To prepare for this visit you will create something that you can use to teach them about what we have learned. Here are some ideas: brochure video or movie Poster Presentation (PowerPoint or Word) story book ...
10.1 Introduction
... In summary, scaling from the solar parameters, the low mass end of the Main Sequence of hydrogen burning stars is expected to occur at L ∼ 10−3 L , Teff ∼ 1700 K. The value of Lmin thus derived matches observations, while that of Teff,min is about a factor of two too low (see Figure 10.5). One reas ...
... In summary, scaling from the solar parameters, the low mass end of the Main Sequence of hydrogen burning stars is expected to occur at L ∼ 10−3 L , Teff ∼ 1700 K. The value of Lmin thus derived matches observations, while that of Teff,min is about a factor of two too low (see Figure 10.5). One reas ...
Planets
... Below the surface, increasing pressure changes this liquid this liquid hydrogen to solid state.Jupiter appears to be the brightest object in the night sky. Jupiter’s bright appearance is due to the fact that is it has a thick, cloudy atmosphere which reflects most of the sunlight falling on it.Jupit ...
... Below the surface, increasing pressure changes this liquid this liquid hydrogen to solid state.Jupiter appears to be the brightest object in the night sky. Jupiter’s bright appearance is due to the fact that is it has a thick, cloudy atmosphere which reflects most of the sunlight falling on it.Jupit ...
Chapter 3 Cosmology 3.1 The Doppler effect
... that the expansion of the Universe is accelerating and has been for about the past 5000 million years. Before this discovery, most astronomers expected that the Universe was decelerating because very distant objects would be slowed down by the force of gravity from other galaxies. Many more observat ...
... that the expansion of the Universe is accelerating and has been for about the past 5000 million years. Before this discovery, most astronomers expected that the Universe was decelerating because very distant objects would be slowed down by the force of gravity from other galaxies. Many more observat ...
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.