ASTR100 Class 01 - University of Maryland Department of
... in interstellar space. The gas between the stars is called the interstellar medium. The clouds are called molecular clouds because they are cold enough for H2 molecules to form. ...
... in interstellar space. The gas between the stars is called the interstellar medium. The clouds are called molecular clouds because they are cold enough for H2 molecules to form. ...
Making H-R Diagrams - PLC-METS
... temperatures, different brightness, different sizes, and different distances from Earth. A star’s mass dictates how bright it will be, how long it will live, its temperature and its size. The Sun is the center of our solar system and is very bright to us on Earth. Other stars in our galaxy are brigh ...
... temperatures, different brightness, different sizes, and different distances from Earth. A star’s mass dictates how bright it will be, how long it will live, its temperature and its size. The Sun is the center of our solar system and is very bright to us on Earth. Other stars in our galaxy are brigh ...
Stars are made of very hot gas. This gas is mostly hydrogen and
... part of the fire at the top of the flame glows red, the hotter part in the middle glows yellow, and the hottest part near the fuel glows blue. Stars work the same way. Their temperature determine what color they will be. Thus we can determine how hot a star is just by looking at its color. ...
... part of the fire at the top of the flame glows red, the hotter part in the middle glows yellow, and the hottest part near the fuel glows blue. Stars work the same way. Their temperature determine what color they will be. Thus we can determine how hot a star is just by looking at its color. ...
Lecture17
... Used to classify stars by type: OBAFKM (from hottest to coldest). All stars have spectra lines or “gaps” in their continuous spectrum, just like the sun, but the lines differ, and depend on how hot the star is. Recently cool stellar types “L” and “T” were added, down to 700K at their surface! ...
... Used to classify stars by type: OBAFKM (from hottest to coldest). All stars have spectra lines or “gaps” in their continuous spectrum, just like the sun, but the lines differ, and depend on how hot the star is. Recently cool stellar types “L” and “T” were added, down to 700K at their surface! ...
Earth Science: Chapter 7: Stellar Evolution: Spring 2017: Student
... the collapsing gas is much greater than any force of energy output. Before fusion actually initiates, there is a stage called the protostar stage. In this stage the inward force of gravity is still greater than the outward energy production force. Main sequence stage: The stage in which stars spend ...
... the collapsing gas is much greater than any force of energy output. Before fusion actually initiates, there is a stage called the protostar stage. In this stage the inward force of gravity is still greater than the outward energy production force. Main sequence stage: The stage in which stars spend ...
Quiz 2 review sheet - Rice Space Institute
... deeper, changing Fe into heavier elements. But since iron is the most stable element, additional fusion takes energy not releases it, so the core collapses faster and the explosion even more incredible, spewing heavy elements into its vicinity. The outer layers start hydrogen and helium burning. Thi ...
... deeper, changing Fe into heavier elements. But since iron is the most stable element, additional fusion takes energy not releases it, so the core collapses faster and the explosion even more incredible, spewing heavy elements into its vicinity. The outer layers start hydrogen and helium burning. Thi ...
Notes
... by the Saha and Boltzman equations, and photon distribution is black body Hydrostatic Equilibrium – No dynamically significant mass loss – The photosphere is not undergoing large scale accelerations comparable to surface gravity – No pulsations or large scale flows Plane Parallel Atmosphere – Only o ...
... by the Saha and Boltzman equations, and photon distribution is black body Hydrostatic Equilibrium – No dynamically significant mass loss – The photosphere is not undergoing large scale accelerations comparable to surface gravity – No pulsations or large scale flows Plane Parallel Atmosphere – Only o ...
Astronomy of the Northern Sky—
... The brightest emission nebulae just barely makes it into our northern sky zone. The North American nebula is centered at RA 20:59 Dec. +44º 30’ but it has roughly a 3º diameter so at least part of it qualifies for being in the North Circumpolar Border. From dark sites it is a clearly visible glow to ...
... The brightest emission nebulae just barely makes it into our northern sky zone. The North American nebula is centered at RA 20:59 Dec. +44º 30’ but it has roughly a 3º diameter so at least part of it qualifies for being in the North Circumpolar Border. From dark sites it is a clearly visible glow to ...
ecliptic. - Valhalla High School
... h R.A., and 1° = 4 min R.A. Right ascension increases from west to east (note that we are looking at the exterior of the celestial sphere in the above picture). ...
... h R.A., and 1° = 4 min R.A. Right ascension increases from west to east (note that we are looking at the exterior of the celestial sphere in the above picture). ...
answers2008_09_BC
... Mass and temperature of He core steadily increasing. At tip of RGB, He fusion ignites in core – star moves quickly to horizontal branch on HRD (where depends on heavy element content) [1] When He exhausted in core, He fusion starts in shell, and star reascends red giant branch. At this stage it ...
... Mass and temperature of He core steadily increasing. At tip of RGB, He fusion ignites in core – star moves quickly to horizontal branch on HRD (where depends on heavy element content) [1] When He exhausted in core, He fusion starts in shell, and star reascends red giant branch. At this stage it ...
M = 5.5 - The Millstone
... the true luminousity of the star. In order to determine Absolute Magnitude, we must have a measure of the stellar distance (by other means). Absolute magnitude, M, expresses the brightness of a star as it would be if it were placed 10 parsecs away. Since all stars would be placed at the same distanc ...
... the true luminousity of the star. In order to determine Absolute Magnitude, we must have a measure of the stellar distance (by other means). Absolute magnitude, M, expresses the brightness of a star as it would be if it were placed 10 parsecs away. Since all stars would be placed at the same distanc ...
the california planet survey. i. four new giant exoplanets
... * A massive planet (M sin i = 0.38 M_Jup ) * Long-period (P = 3.41 yr), eccentric (e = 0.41) orbit around an extremely metal-rich star. HD 126614 A has the highest metallicity of the 1040 stars in the SPOCS catalog. Measurements (metalicity of) on this star along with the detection of HD 126614 Ab, ...
... * A massive planet (M sin i = 0.38 M_Jup ) * Long-period (P = 3.41 yr), eccentric (e = 0.41) orbit around an extremely metal-rich star. HD 126614 A has the highest metallicity of the 1040 stars in the SPOCS catalog. Measurements (metalicity of) on this star along with the detection of HD 126614 Ab, ...
Life Cycle of a Star
... The star runs out of fuel outer parts expand, then the core shrinks It turns red as it is cooling This phase will last until the star exhausts its remaining fuel. • The pressure of the nuclear reaction is not strong enough to equalize the force of gravity so the star will collapse. ...
... The star runs out of fuel outer parts expand, then the core shrinks It turns red as it is cooling This phase will last until the star exhausts its remaining fuel. • The pressure of the nuclear reaction is not strong enough to equalize the force of gravity so the star will collapse. ...
Eagle Nebula - Amazing Space
... Fast Facts Age The Eagle Nebula is two million years old, the EGGs will live for another 1020,000 years. Location In the constellation Serpens, the Serpent, alongside the southern Milky Way Distance from Earth 7,000 light years ...
... Fast Facts Age The Eagle Nebula is two million years old, the EGGs will live for another 1020,000 years. Location In the constellation Serpens, the Serpent, alongside the southern Milky Way Distance from Earth 7,000 light years ...
Life and Death Of A Star - EarthSpaceScience
... • So a giant’s core quickly collapses in on its self sending a shockwave that blasts the outer layers of the star into space – Supernova – Creating a dusting of all the elements over a large area ...
... • So a giant’s core quickly collapses in on its self sending a shockwave that blasts the outer layers of the star into space – Supernova – Creating a dusting of all the elements over a large area ...
Life Cycle of a Star
... The star runs out of fuel outer parts expand, then the core shrinks It turns red as it is cooling This phase will last until the star exhausts its remaining fuel. • The pressure of the nuclear reaction is not strong enough to equalize the force of gravity so the star will collapse. ...
... The star runs out of fuel outer parts expand, then the core shrinks It turns red as it is cooling This phase will last until the star exhausts its remaining fuel. • The pressure of the nuclear reaction is not strong enough to equalize the force of gravity so the star will collapse. ...
NAME:______ANSWER KEY_______________________Period
... Unit 10-11 Review Sheet ANSWER KEY 1. What is the universe made up of? matter, energy, and space 2. What does light year measure? distance 3. Why do we use light year instead of kilometers? Kilometers would be way to big of a number 4. Change the following number 78,000,000 to scientific notation. 7 ...
... Unit 10-11 Review Sheet ANSWER KEY 1. What is the universe made up of? matter, energy, and space 2. What does light year measure? distance 3. Why do we use light year instead of kilometers? Kilometers would be way to big of a number 4. Change the following number 78,000,000 to scientific notation. 7 ...
Unit 1
... 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 supernova ...
... 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 supernova ...
Stellar kinematics
Stellar kinematics is the study of the movement of stars without needing to understand how they acquired their motion. This differs from stellar dynamics, which takes into account gravitational effects. The motion of a star relative to the Sun can provide useful information about the origin and age of a star, as well as the structure and evolution of the surrounding part of the Milky Way.In astronomy, it is widely accepted that most stars are born within molecular clouds known as stellar nurseries. The stars formed within such a cloud compose open clusters containing dozens to thousands of members. These clusters dissociate over time. Stars that separate themselves from the cluster's core are designated as members of the cluster's stellar association. If the remnant later drifts through the Milky Way as a coherent assemblage, then it is termed a moving group.