Understanding Stars
... Globules condense from a nebula to form a stellar nursery The stellar nurseries are big enough to form many stars – Star clusters: open or globular Spectroscopy Every element has it’s own unique spectrum – Use this to identify the composition of a gas • Chromosphere or corona Extremely dense things ...
... Globules condense from a nebula to form a stellar nursery The stellar nurseries are big enough to form many stars – Star clusters: open or globular Spectroscopy Every element has it’s own unique spectrum – Use this to identify the composition of a gas • Chromosphere or corona Extremely dense things ...
il 3 ~ )
... (c) How long will it take the spacecraft to arrive at Mercury? (d) The Earth orbits around the Sun at about 30 km/s. What is the launch speed (and its direction with respect to Earth's orbital motion) fa!' this probe to follow the least-energy orbit? (Hint: First, find the aphelion speed for the lea ...
... (c) How long will it take the spacecraft to arrive at Mercury? (d) The Earth orbits around the Sun at about 30 km/s. What is the launch speed (and its direction with respect to Earth's orbital motion) fa!' this probe to follow the least-energy orbit? (Hint: First, find the aphelion speed for the lea ...
Note Taking Guide #2: Characteristics of Stars Welcome back! As
... How bright a star is from Erath depends on how far the star is from earth and how bright the star actually is. A star’s apparent magnitude is how much light a star appears to give off when viewed from Earth. The closer a star is to Erath, the more light it appears to give off. Think of our sun versu ...
... How bright a star is from Erath depends on how far the star is from earth and how bright the star actually is. A star’s apparent magnitude is how much light a star appears to give off when viewed from Earth. The closer a star is to Erath, the more light it appears to give off. Think of our sun versu ...
Document
... bright it looks from Earth, you can determine how far away it must be to look that faint. • For any star in the sky, we KNOW: – Apparent Magnitude (m) – Spectral Type (O, B, A, F, G, K, M) – Luminosity Class (Main Sequence, Giant, etc…). These are denoted by a roman numeral (V, III, I,…). ...
... bright it looks from Earth, you can determine how far away it must be to look that faint. • For any star in the sky, we KNOW: – Apparent Magnitude (m) – Spectral Type (O, B, A, F, G, K, M) – Luminosity Class (Main Sequence, Giant, etc…). These are denoted by a roman numeral (V, III, I,…). ...
Unit 11 Guide: Concepts of Earth Science Stars, Galaxies, and the
... Stars, Galaxies, and the Universe Key Concepts and Questions to Be Able to Explain and Answer: 1. What are the names and characteristics of the three types of galaxies? What type of galaxy is the Milky Way galaxy? 2. What evidence do scientists use to support the Big Bang Theory? Explain the sequenc ...
... Stars, Galaxies, and the Universe Key Concepts and Questions to Be Able to Explain and Answer: 1. What are the names and characteristics of the three types of galaxies? What type of galaxy is the Milky Way galaxy? 2. What evidence do scientists use to support the Big Bang Theory? Explain the sequenc ...
handout
... i. Brightest stars : _________ magnitude ii. Faintest stars ( _____________ eye): _______ magnitude iii. 1st mag stars appear ____________ times brighter than 6th mag stars iv. larger magnitude => _________________ object! B. The magnitude scale system can be extended toward ____________ numbers (__ ...
... i. Brightest stars : _________ magnitude ii. Faintest stars ( _____________ eye): _______ magnitude iii. 1st mag stars appear ____________ times brighter than 6th mag stars iv. larger magnitude => _________________ object! B. The magnitude scale system can be extended toward ____________ numbers (__ ...
Astronomical Terms - Crossroads Academy
... compass from true north) similar to geographical latitude…used to locate stars in the celestial sphere local noon…the highest point of the sun in any day in a specific location therefor giving the shortest shadow on a gnomon zenith…point in the sky directly overhead nadir…opposite of zenith (180 deg ...
... compass from true north) similar to geographical latitude…used to locate stars in the celestial sphere local noon…the highest point of the sun in any day in a specific location therefor giving the shortest shadow on a gnomon zenith…point in the sky directly overhead nadir…opposite of zenith (180 deg ...
Space Science Unit
... phase of the star’s life cycle the star is in and other important information about the star. • Most stars are what we consider main sequence (including our sun). They make up 90% of the stars in our sky. These stars are the diagonal strip running through the middle of the chart. ...
... phase of the star’s life cycle the star is in and other important information about the star. • Most stars are what we consider main sequence (including our sun). They make up 90% of the stars in our sky. These stars are the diagonal strip running through the middle of the chart. ...
The Sun and Stardust
... How are other elements made? Massive stars burn their hydrogen (and helium and carbon-nitrogen-oxygen) very quickly. At the end of their life heavier (metals) are formed such as vanadium, chromium, manganese, iron, cobalt, and nickel etc. Then massive stars (about ten times more massive than the Su ...
... How are other elements made? Massive stars burn their hydrogen (and helium and carbon-nitrogen-oxygen) very quickly. At the end of their life heavier (metals) are formed such as vanadium, chromium, manganese, iron, cobalt, and nickel etc. Then massive stars (about ten times more massive than the Su ...
Lecture 19 The Milky Way Galaxy
... • Greeks called the hazy band of light around the sky ‘galaxias kuklos’ – milky circle • Romans called it ‘via lactia’ – milky road, or milky way • But what is it? • By the mid-18th century, astronomers new that it was made up of an enormous number of distant stars ...
... • Greeks called the hazy band of light around the sky ‘galaxias kuklos’ – milky circle • Romans called it ‘via lactia’ – milky road, or milky way • But what is it? • By the mid-18th century, astronomers new that it was made up of an enormous number of distant stars ...
The Milky Way
... bright it looks from Earth, you can determine how far away it must be to look that faint. • For any star in the sky, we KNOW: – Apparent Magnitude (m) – Spectral Type (O, B, A, F, G, K, M) – Luminosity Class (Main Sequence, Giant, etc…). These are denoted by a roman numeral (V, III, I,…). ...
... bright it looks from Earth, you can determine how far away it must be to look that faint. • For any star in the sky, we KNOW: – Apparent Magnitude (m) – Spectral Type (O, B, A, F, G, K, M) – Luminosity Class (Main Sequence, Giant, etc…). These are denoted by a roman numeral (V, III, I,…). ...
properties of stars 2012
... d = distance to object A = angle from earth to object (known) b = distance between two points in earth orbit (known) b. Parallax--change in objects apparent position caused by a change in the observer’s position. (remember the thumb in front of nose trick.) When viewed from opposite sides of the ear ...
... d = distance to object A = angle from earth to object (known) b = distance between two points in earth orbit (known) b. Parallax--change in objects apparent position caused by a change in the observer’s position. (remember the thumb in front of nose trick.) When viewed from opposite sides of the ear ...
Document
... how bright it looks from Earth, you can determine how far away it must be to look that faint. • For any star in the sky, we KNOW: – Apparent Magnitude (m) – Spectral Type (O, B, A, F, G, K, M) – Luminosity Class (Main Sequence, Giant, etc…). These are denoted by a roman numeral (V, III, I,…). ...
... how bright it looks from Earth, you can determine how far away it must be to look that faint. • For any star in the sky, we KNOW: – Apparent Magnitude (m) – Spectral Type (O, B, A, F, G, K, M) – Luminosity Class (Main Sequence, Giant, etc…). These are denoted by a roman numeral (V, III, I,…). ...
Hertzsprung-Russell Diagram Astronomy Project Purpose: To
... Requirements: For each star that is chosen, the following must be completed along with it. Example: if you work in groups of 3, then you will have three sets of data for each of the stars you chose. 1.) Determine the stars temperature in Celsius and Kelvin 2.) With the provided formula, determine th ...
... Requirements: For each star that is chosen, the following must be completed along with it. Example: if you work in groups of 3, then you will have three sets of data for each of the stars you chose. 1.) Determine the stars temperature in Celsius and Kelvin 2.) With the provided formula, determine th ...
The Great Observatories - Center for STEM Education
... billions of years before the Sun and Earth formed. These represent the mission's first direct distance, or redshift, measurements, its latest milestone since being launched in November 2004. The distances were attained with Swift's Ultraviolet/OpticalTelescope (UVOT). ...
... billions of years before the Sun and Earth formed. These represent the mission's first direct distance, or redshift, measurements, its latest milestone since being launched in November 2004. The distances were attained with Swift's Ultraviolet/OpticalTelescope (UVOT). ...
The Galactic Super Star Cluster Westerlund 1
... times the mass of Orion. Therefore, we would have expected diffuse emission with L x = 3x10 35 erg s-1, which is five times more flux than we observe. We suggest that the IMF is nonstandard, as is often claimed for young, massive star clusters. ...
... times the mass of Orion. Therefore, we would have expected diffuse emission with L x = 3x10 35 erg s-1, which is five times more flux than we observe. We suggest that the IMF is nonstandard, as is often claimed for young, massive star clusters. ...
16.6 NOTES How do astronomers measure distance? Objective
... distance light travels in one year (about 10 trillion km). Light from the Sun reaches Earth in a little more than 8 minutes. Light from the North Star (Polaris), reaches earth in about 700 years. Astronomers can use parallax to find out distances to the closer stars. Parallax is the apparent change ...
... distance light travels in one year (about 10 trillion km). Light from the Sun reaches Earth in a little more than 8 minutes. Light from the North Star (Polaris), reaches earth in about 700 years. Astronomers can use parallax to find out distances to the closer stars. Parallax is the apparent change ...
answers
... nearby stars using parallax and we get the distance to more distant stars by using standard candles that are in the same galaxy. 2) The Sun has a mass of 2 x 1030 kg and the other stars have masses ranging from 1/10th of this to over 200 times more. How do we know the mass of the other stars? This i ...
... nearby stars using parallax and we get the distance to more distant stars by using standard candles that are in the same galaxy. 2) The Sun has a mass of 2 x 1030 kg and the other stars have masses ranging from 1/10th of this to over 200 times more. How do we know the mass of the other stars? This i ...
16.5 NOTES What is a radio telescope? Objective: Explain how a
... from space. These waves were coming from our galaxy, the Milky Way. Grote Reber built a radio telescope with an antenna. He was able to make the first radio map of the Milky Way. The antenna collects and focuses radio waves given off by stars and other objects in space. These waves are then transmit ...
... from space. These waves were coming from our galaxy, the Milky Way. Grote Reber built a radio telescope with an antenna. He was able to make the first radio map of the Milky Way. The antenna collects and focuses radio waves given off by stars and other objects in space. These waves are then transmit ...
Spectral Classification and the HR Diagram
... promoted to work directly with the spectral classification project, although she was paid half of what the men were paid. Nevertheless, Fleming developed a relatively simple classification scheme, with 22 different classes, and in 1890 published the classifications for 10,000 stars as the Draper Cat ...
... promoted to work directly with the spectral classification project, although she was paid half of what the men were paid. Nevertheless, Fleming developed a relatively simple classification scheme, with 22 different classes, and in 1890 published the classifications for 10,000 stars as the Draper Cat ...
Hipparcos
Hipparcos was a scientific satellite of the European Space Agency (ESA), launched in 1989 and operated until 1993. It was the first space experiment devoted to precision astrometry, the accurate measurement of the positions of celestial objects on the sky. This permitted the accurate determination of proper motions and parallaxes of stars, allowing a determination of their distance and tangential velocity. When combined with radial-velocity measurements from spectroscopy, this pinpointed all six quantities needed to determine the motion of stars. The resulting Hipparcos Catalogue, a high-precision catalogue of more than 118,200 stars, was published in 1997. The lower-precision Tycho Catalogue of more than a million stars was published at the same time, while the enhanced Tycho-2 Catalogue of 2.5 million stars was published in 2000. Hipparcos ' follow-up mission, Gaia, was launched in 2013.The word ""Hipparcos"" is an acronym for High precision parallax collecting satellite and also a reference to the ancient Greek astronomer Hipparchus of Nicaea, who is noted for applications of trigonometry to astronomy and his discovery of the precession of the equinoxes.