PHY2083
... If a star appears faint, is it because it is really (i.e. intrinsically) faint, or because it is very far away [or both] ? N.B. For stars at the same distance, the ratio of their fluxes = ratio of their luminosities ...
... If a star appears faint, is it because it is really (i.e. intrinsically) faint, or because it is very far away [or both] ? N.B. For stars at the same distance, the ratio of their fluxes = ratio of their luminosities ...
Stars are classified according to their color
... between the stars. • Distance that light travels in one year. Its about 9.5 million million kilometers. That is not a typo! ...
... between the stars. • Distance that light travels in one year. Its about 9.5 million million kilometers. That is not a typo! ...
Chapter 25 Beyond Our Solar System
... calculate—its mass. • The word constellation is used to designate an area of the sky that contains a specific pattern of stars. • Two stars that orbit each other, pulled toward each other by gravity, are called binary stars. ...
... calculate—its mass. • The word constellation is used to designate an area of the sky that contains a specific pattern of stars. • Two stars that orbit each other, pulled toward each other by gravity, are called binary stars. ...
The most accepted theory of the origin of the solar system is the
... T Tauri stars – The first indirect evidence for planet-forming disks came from studies of T Tauri stars (named after the prototype star in the constellation Taurus), which are similar in mass to the Sun, but very young (about one million years old). In the 1980s, astronomers realized that about a th ...
... T Tauri stars – The first indirect evidence for planet-forming disks came from studies of T Tauri stars (named after the prototype star in the constellation Taurus), which are similar in mass to the Sun, but very young (about one million years old). In the 1980s, astronomers realized that about a th ...
From Big bang to lives on planets
... –About 85% of known exoplanets are detected by the technique –The Doppler method is sensitive to massive planets around relatively nearby stars Advantages of Transits –Transits offer the only way we currently have to make a direct measurement of the radii of exoplanets –Gives an estimate of the dens ...
... –About 85% of known exoplanets are detected by the technique –The Doppler method is sensitive to massive planets around relatively nearby stars Advantages of Transits –Transits offer the only way we currently have to make a direct measurement of the radii of exoplanets –Gives an estimate of the dens ...
HR Diagram (Temperature Versus Absolute Magnitude)
... • Astronomical units can be used to measure distances within our solar systems ...
... • Astronomical units can be used to measure distances within our solar systems ...
Astronomy 1001
... are distant compared to normal “human” scales • Stars are very far away – Would take Voyager 1 100,000 years to reach Alpha Centauri ...
... are distant compared to normal “human” scales • Stars are very far away – Would take Voyager 1 100,000 years to reach Alpha Centauri ...
It`s a bird, it`s a plane…
... • Asteroids are large chunks of metal and rock that are difficult to see with the eye • They do not form tails • They have elliptical orbits • Most orbit the sun in an area known as the asteroid belt (between Mars and Jupiter) in the same direction as the planets ...
... • Asteroids are large chunks of metal and rock that are difficult to see with the eye • They do not form tails • They have elliptical orbits • Most orbit the sun in an area known as the asteroid belt (between Mars and Jupiter) in the same direction as the planets ...
ASTR 200 : Lecture 15 Ensemble Properties of Stars
... • I will be away Monday-Thursday inclusive at the Division of Planetary Sciences meeting • Monday and Wednesday's lecture will be given by Professor Hickson (last year's ASTR 200 ...
... • I will be away Monday-Thursday inclusive at the Division of Planetary Sciences meeting • Monday and Wednesday's lecture will be given by Professor Hickson (last year's ASTR 200 ...
PISGAH Dr. Bob Hayward ASTRONOMICAL Astronomer/Educator
... towards the west and you will come to a bright star, Aldebaran, the eye of Taurus the bull. A cluster of stars called the Hyades forms the face of the bull and can be seen in the form of a letter “V” with Aldebaran at the top of one side of the “V.” Technically, Aldebaran is not a member of the Hyad ...
... towards the west and you will come to a bright star, Aldebaran, the eye of Taurus the bull. A cluster of stars called the Hyades forms the face of the bull and can be seen in the form of a letter “V” with Aldebaran at the top of one side of the “V.” Technically, Aldebaran is not a member of the Hyad ...
Space Test: Practice Questions and Answers 1. Who discovered
... Space Test: Practice Questions and Answers 19. How are the surfaces of early planets heated? a. Asteroids b. Volcanoes c. The sun d. Solar flares 20. In redshift, the light’s wavelength… a. Get bigger b. Gets ...
... Space Test: Practice Questions and Answers 19. How are the surfaces of early planets heated? a. Asteroids b. Volcanoes c. The sun d. Solar flares 20. In redshift, the light’s wavelength… a. Get bigger b. Gets ...
Stellar Properties
... birthday. The pictures were then send electronically to us on the day of the child’s birthday. (lys = light years) • Yvone lives on a planet orbiting Garg, which is 9.5 lys away from the sun. • RYAN lives on a planet orbiting NORDSTROM, which is 14 lys away from the sun. • Julie lives on a planet or ...
... birthday. The pictures were then send electronically to us on the day of the child’s birthday. (lys = light years) • Yvone lives on a planet orbiting Garg, which is 9.5 lys away from the sun. • RYAN lives on a planet orbiting NORDSTROM, which is 14 lys away from the sun. • Julie lives on a planet or ...
CH27.2 Stellar Evolution
... Some may have one or more large explosions, causing them to become very bright for a short time(days) ...
... Some may have one or more large explosions, causing them to become very bright for a short time(days) ...
SNP Quick Tour
... XVI. On-line features Note: You can download the full Starry Night Pro Users guide at www.StarryNight.com/tech_swupdates.html ...
... XVI. On-line features Note: You can download the full Starry Night Pro Users guide at www.StarryNight.com/tech_swupdates.html ...
The inner planets
... Mercury is the closest planet to the Sun. Its surface appears very similar to Earth's Moon, but the planet has a much larger iron core and is therefore much thicker; Mercury's composition is approximately 70% metallic and 30% silicate. Venus is the second planet from the sun. It is one of the four i ...
... Mercury is the closest planet to the Sun. Its surface appears very similar to Earth's Moon, but the planet has a much larger iron core and is therefore much thicker; Mercury's composition is approximately 70% metallic and 30% silicate. Venus is the second planet from the sun. It is one of the four i ...
Universe 8e Lecture Chapter 17 Nature of Stars
... Photometry and Color Ratios: Photometry measures the apparent brightness of a star. The color ratios of a star are the ratios of brightness values obtained through different standard filters, such as the U, B, and V filters. These ratios are a measure of the star’s surface temperature. Spectral Type ...
... Photometry and Color Ratios: Photometry measures the apparent brightness of a star. The color ratios of a star are the ratios of brightness values obtained through different standard filters, such as the U, B, and V filters. These ratios are a measure of the star’s surface temperature. Spectral Type ...
File - SMIC Physics
... • ~ 1 trillion stars • Stars (including Sun) orbit around the core. It takes 225 million years for the Sun to make 1 round around the core. • Has a supermassive black hole at its center. It is about 2.5 million times as massive as the Sun. ...
... • ~ 1 trillion stars • Stars (including Sun) orbit around the core. It takes 225 million years for the Sun to make 1 round around the core. • Has a supermassive black hole at its center. It is about 2.5 million times as massive as the Sun. ...
THE LIFE CYCLE OF A STAR
... core. A Protostar develops first into a T Tauri star, which then develops into a main sequence star like our sun. STAR A star is a luminous globe of gas producing its own heat and light by nuclear reactions (nuclear fusion). They are born from nebulae and consist mostly of hydrogen and helium gas. S ...
... core. A Protostar develops first into a T Tauri star, which then develops into a main sequence star like our sun. STAR A star is a luminous globe of gas producing its own heat and light by nuclear reactions (nuclear fusion). They are born from nebulae and consist mostly of hydrogen and helium gas. S ...
Montage of Jupiter and the Galilean satellites
... The horizontal axis is surface temperature; the vertical one, luminosity, in units of the SunΥsluminosity. The solid white lin es show where stars of different luminosity classes fall on the diagram; supergiants at the very top; giants just below them; and finally mainsequence stars. The relative si ...
... The horizontal axis is surface temperature; the vertical one, luminosity, in units of the SunΥsluminosity. The solid white lin es show where stars of different luminosity classes fall on the diagram; supergiants at the very top; giants just below them; and finally mainsequence stars. The relative si ...
May - RASC St. John`s Centre
... aligned with Polaris points to Cassiopeia, The Queen, 25º beyond. The three middle stars of this W-shaped constellation can be used to find two other well-known constellations. The central star and the star forming the bottom of the W in the direction of Capella point to Perseus, The Hero, 15º away. ...
... aligned with Polaris points to Cassiopeia, The Queen, 25º beyond. The three middle stars of this W-shaped constellation can be used to find two other well-known constellations. The central star and the star forming the bottom of the W in the direction of Capella point to Perseus, The Hero, 15º away. ...
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.