I. Determination of stellar Parameters
... Galactic origin • planetary systems form in inner metal-rich disk (independent of metallcity there!) • also Sun is more metal-rich than local average and might have formed at inner Galactic radii • model: metallicity-correlation from radial mixing of different Galactic components ...
... Galactic origin • planetary systems form in inner metal-rich disk (independent of metallcity there!) • also Sun is more metal-rich than local average and might have formed at inner Galactic radii • model: metallicity-correlation from radial mixing of different Galactic components ...
comets
... Will make long term measurements as comet approaches Sun (from 3.5 AU to 1.4 AU for at least six months) Map nucleus (Aug. 2014) Release Philæ Lander (Nov. 2014) Measurements on surface as comet goes around Sun (Nov. 2014 to Dec. ...
... Will make long term measurements as comet approaches Sun (from 3.5 AU to 1.4 AU for at least six months) Map nucleus (Aug. 2014) Release Philæ Lander (Nov. 2014) Measurements on surface as comet goes around Sun (Nov. 2014 to Dec. ...
6-Where to Survey - The Challenger Learning Center
... sun. You also know that there are other planets in our solar system, eight at last count with assorted other objects including asteroids, meteors, Plutoids (dwarf planets in a belt found beyond Neptune), and an Oort Cloud made up of ice bodies that may go half way to the nearest star. What you may n ...
... sun. You also know that there are other planets in our solar system, eight at last count with assorted other objects including asteroids, meteors, Plutoids (dwarf planets in a belt found beyond Neptune), and an Oort Cloud made up of ice bodies that may go half way to the nearest star. What you may n ...
A Universe of Dwarfs and Giants
... own light. These objects are either very dim or even black when looked at in visible light. The little they radiate is mainly infra-red light. Brown dwarfs can be thought of as failed stars; much bigger than a planet but just not big enough to make it as a star. D type stars: These are also dwarf st ...
... own light. These objects are either very dim or even black when looked at in visible light. The little they radiate is mainly infra-red light. Brown dwarfs can be thought of as failed stars; much bigger than a planet but just not big enough to make it as a star. D type stars: These are also dwarf st ...
May 2010 - astronomy for beginners
... Moon’s rotation is in relation to the rest of space but not to us on Earth therefore it appears to keep the same face towards Earth all the time. By saying the Moon keeps the same face towards Earth it could be assumed that we can only see 50% of the surface of the Moon. However this is not case due ...
... Moon’s rotation is in relation to the rest of space but not to us on Earth therefore it appears to keep the same face towards Earth all the time. By saying the Moon keeps the same face towards Earth it could be assumed that we can only see 50% of the surface of the Moon. However this is not case due ...
Broward County Benchmark Correlation
... • Planet Celestial body that (a) is in orbit around the Sun, (b) has sufficient mass for its selfgravity to overcome rigid body forces so that it assumes a hydrostatic equilibrium (nearly round) shape, and (c) has cleared the neighborhood around its orbit. Mercury, Venus, Earth, Mars, Jupiter, Satur ...
... • Planet Celestial body that (a) is in orbit around the Sun, (b) has sufficient mass for its selfgravity to overcome rigid body forces so that it assumes a hydrostatic equilibrium (nearly round) shape, and (c) has cleared the neighborhood around its orbit. Mercury, Venus, Earth, Mars, Jupiter, Satur ...
Solar System
... 2-3 ES1A The shape of the moon goes through one entire set of phases during the course of its 28-day cycle 2-3 ES1B Patterns of stars (constellations) always have the same shape 4-5SYSA Systems contain subsystems and are themselves parts of larger systems 4-5 SYSB A System can do things that none of ...
... 2-3 ES1A The shape of the moon goes through one entire set of phases during the course of its 28-day cycle 2-3 ES1B Patterns of stars (constellations) always have the same shape 4-5SYSA Systems contain subsystems and are themselves parts of larger systems 4-5 SYSB A System can do things that none of ...
Review questions with attached answer key
... 1. A camera was placed in an open field and pointed toward the northern sky. The lens of the camera was left open for a certain amount of time. The result is shown in the photograph below. The angle of the arc through which two of the stars appeared to move during this time exposure is shown. ...
... 1. A camera was placed in an open field and pointed toward the northern sky. The lens of the camera was left open for a certain amount of time. The result is shown in the photograph below. The angle of the arc through which two of the stars appeared to move during this time exposure is shown. ...
Astronomy.Practice.Quiz3
... a. absolute magnitude and apparent magnitude b. temperature and absolute magnitude c. parallax and temperature d. apparent magnitude and parallax 11. The source of the Sun’s energy is ____. a. chemical burning b. nuclear fusion 12. What determines the final stages of a star’s life cycle? a. size b. ...
... a. absolute magnitude and apparent magnitude b. temperature and absolute magnitude c. parallax and temperature d. apparent magnitude and parallax 11. The source of the Sun’s energy is ____. a. chemical burning b. nuclear fusion 12. What determines the final stages of a star’s life cycle? a. size b. ...
“From Planetesimals to Brown Dwarfs: What is a Planet
... history from planets in our Solar System, since their current orbits would have been inside the supergiant star that preceded the central pulsar. The next large group of (gas giant) exoplanets (well over 100 at this point), were discovered by the radial velocity variability they induce in their hos ...
... history from planets in our Solar System, since their current orbits would have been inside the supergiant star that preceded the central pulsar. The next large group of (gas giant) exoplanets (well over 100 at this point), were discovered by the radial velocity variability they induce in their hos ...
Slide 1
... system. Both masses equal => center of mass is in the middle, rA = rB. The more unequal the masses are, the more it shifts toward the more massive star. ...
... system. Both masses equal => center of mass is in the middle, rA = rB. The more unequal the masses are, the more it shifts toward the more massive star. ...
Unit of Work for Year
... use the idea that light travels in straight lines to explain that objects are seen because they give out or reflect light into the eye explain that we see things because light travels from light sources to our eyes or from light sources to objects and then to our eyes use the idea that light travels ...
... use the idea that light travels in straight lines to explain that objects are seen because they give out or reflect light into the eye explain that we see things because light travels from light sources to our eyes or from light sources to objects and then to our eyes use the idea that light travels ...
The gorilla connection
... relatively faint star passing in front of a distant bright star acts as a gravitational lens, focusing light from the distant object, magnifying it and causing it to brighten and fade with a characteristic ‘light curve’ over a period of weeks (Fig. 1a). If the nearer star possesses a planet, it too ...
... relatively faint star passing in front of a distant bright star acts as a gravitational lens, focusing light from the distant object, magnifying it and causing it to brighten and fade with a characteristic ‘light curve’ over a period of weeks (Fig. 1a). If the nearer star possesses a planet, it too ...
Kepler`s Third Law
... predict the observed motions of the planets. However, the Copernican model is slightly simpler, which is appealing. The Copernican does make certain predictions which are different than the Ptolemic model, which we will see next. It is a combination of these predictions, which were successfully test ...
... predict the observed motions of the planets. However, the Copernican model is slightly simpler, which is appealing. The Copernican does make certain predictions which are different than the Ptolemic model, which we will see next. It is a combination of these predictions, which were successfully test ...
Skylights - May 2017 - Astronomical Society of Northern New England
... The first good meteor shower of the year, called the Eta Aquarids, will peak this month on Saturday morning the 6th. Caused by the most famous of all comets, Halley’s, you can expect about 50 meteors per hour that morning. Look for nearly half that rate each morning from the third through the tenth. ...
... The first good meteor shower of the year, called the Eta Aquarids, will peak this month on Saturday morning the 6th. Caused by the most famous of all comets, Halley’s, you can expect about 50 meteors per hour that morning. Look for nearly half that rate each morning from the third through the tenth. ...
Gökküre - itü | fizik mühendisliği
... • In 1604 he observed the SN studied by Kepler. • He thought this was a new star. • The new star showed no motion accross the sky compared with the other stars (i.e. No parallax) • Gave series of lectures arguing that it must be as far away from the Earth as the other stars. • This refutes the Arist ...
... • In 1604 he observed the SN studied by Kepler. • He thought this was a new star. • The new star showed no motion accross the sky compared with the other stars (i.e. No parallax) • Gave series of lectures arguing that it must be as far away from the Earth as the other stars. • This refutes the Arist ...
The Solar System - Gordon College English Center
... planet in orbit around its star is the force of gravity. Planets have round shape. It is so because of their own gravity that pulls them into a spherical shape. Planets differ from stars by not producing light by any kind of nuclear processes. Being non-lightemitters, planets are quite hard to spot. ...
... planet in orbit around its star is the force of gravity. Planets have round shape. It is so because of their own gravity that pulls them into a spherical shape. Planets differ from stars by not producing light by any kind of nuclear processes. Being non-lightemitters, planets are quite hard to spot. ...
Stellar Evolution - University of California, Santa Cruz
... • HII stands for ionized hydrogen. The process is UV photons from the hot, newly formed O stars ionize hydrogen atoms in the surrounding gas. • When electrons recombine with protons (ionized hydrogen atoms), the electrons cascade through the energy levels. A high probability step on the epath to the ...
... • HII stands for ionized hydrogen. The process is UV photons from the hot, newly formed O stars ionize hydrogen atoms in the surrounding gas. • When electrons recombine with protons (ionized hydrogen atoms), the electrons cascade through the energy levels. A high probability step on the epath to the ...
te acher`s guide te acher`s guide
... question using computer graphics and space footage. What are the signs of the zodiac? The signs of the zodiac are twelve different groups of stars that are named after animals or mythical creatures.They are constellations — patterns of stars in the night sky — that appear to create outlines of pictu ...
... question using computer graphics and space footage. What are the signs of the zodiac? The signs of the zodiac are twelve different groups of stars that are named after animals or mythical creatures.They are constellations — patterns of stars in the night sky — that appear to create outlines of pictu ...
Loops of Jupiter
... with time. Sometimes a planet moves seemingly in the opposite direction (retrograde motion) and then its ecliptic longitude decreases with time. The second coordinate of a planet is called latitude β but we will not use it as it changes slightly. An observer on Earth determines the position of a pla ...
... with time. Sometimes a planet moves seemingly in the opposite direction (retrograde motion) and then its ecliptic longitude decreases with time. The second coordinate of a planet is called latitude β but we will not use it as it changes slightly. An observer on Earth determines the position of a pla ...
clicking here - The Learning Dome
... nothing at all to do with the shape that we see the moon in the sky. Go back to the question and try again. ...
... nothing at all to do with the shape that we see the moon in the sky. Go back to the question and try again. ...
Formation and evolution of the Solar System
The formation of the Solar System began 4.6 billion years ago with the gravitational collapse of a small part of a giant molecular cloud. Most of the collapsing mass collected in the center, forming the Sun, while the rest flattened into a protoplanetary disk out of which the planets, moons, asteroids, and other small Solar System bodies formed.This widely accepted model, known as the nebular hypothesis, was first developed in the 18th century by Emanuel Swedenborg, Immanuel Kant, and Pierre-Simon Laplace. Its subsequent development has interwoven a variety of scientific disciplines including astronomy, physics, geology, and planetary science. Since the dawn of the space age in the 1950s and the discovery of extrasolar planets in the 1990s, the model has been both challenged and refined to account for new observations.The Solar System has evolved considerably since its initial formation. Many moons have formed from circling discs of gas and dust around their parent planets, while other moons are thought to have formed independently and later been captured by their planets. Still others, such as the Moon, may be the result of giant collisions. Collisions between bodies have occurred continually up to the present day and have been central to the evolution of the Solar System. The positions of the planets often shifted due to gravitational interactions. This planetary migration is now thought to have been responsible for much of the Solar System's early evolution.In roughly 5 billion years, the Sun will cool and expand outward many times its current diameter (becoming a red giant), before casting off its outer layers as a planetary nebula and leaving behind a stellar remnant known as a white dwarf. In the far distant future, the gravity of passing stars will gradually reduce the Sun's retinue of planets. Some planets will be destroyed, others ejected into interstellar space. Ultimately, over the course of tens of billions of years, it is likely that the Sun will be left with none of the original bodies in orbit around it.