Space Science Review Vocabulary: Nebula Proto Star Main
... Characteristics of the phases in the Life Cycle of a Star The EM Spectrum The HR Diagram – know how to relate temperature to luminosity or absolute magnitude on the diagram ...
... Characteristics of the phases in the Life Cycle of a Star The EM Spectrum The HR Diagram – know how to relate temperature to luminosity or absolute magnitude on the diagram ...
Final Study Guide
... 33. What is meant by the terms “event horizon” and “Schwarzschild radius” and what is their relation to the mass of a black hole? 34. What is meant by the “period luminosity relation” of the Cepheid variables, and how can this be used as a distance indicator to the stars? 35. How are the spiral arms ...
... 33. What is meant by the terms “event horizon” and “Schwarzschild radius” and what is their relation to the mass of a black hole? 34. What is meant by the “period luminosity relation” of the Cepheid variables, and how can this be used as a distance indicator to the stars? 35. How are the spiral arms ...
The Mass Assembly of Galaxies
... There is a cluster of B stars in the central 1’’ of the galaxy, the so-called S-cluster. These high proper motion stars - in particular star S2 - show that Sgr A* is a black-hole of 3-4 million solar masses. Large numbers of young stars, in particular O supergiants and WR stars are observed within 2 ...
... There is a cluster of B stars in the central 1’’ of the galaxy, the so-called S-cluster. These high proper motion stars - in particular star S2 - show that Sgr A* is a black-hole of 3-4 million solar masses. Large numbers of young stars, in particular O supergiants and WR stars are observed within 2 ...
Lecture 13
... The UBVRI system • In the 1960s, Johnson (and later others) extended the UBV system to the red and infrared, with R,I,J,K,L,M,N.... bands. • In the optical, then, we have the UBVRI broadband system. • It was found that the UBV system did not work well for very cool stars, like K and M spectral type ...
... The UBVRI system • In the 1960s, Johnson (and later others) extended the UBV system to the red and infrared, with R,I,J,K,L,M,N.... bands. • In the optical, then, we have the UBVRI broadband system. • It was found that the UBV system did not work well for very cool stars, like K and M spectral type ...
Introducing the Stars
... horizon, and thus invisible. So we will look under the drop-down ‘View’ tab and hit “Hide Horizon.” The Earth becomes transparent, so we can look in any direction and see any star in the sky! So that we are not bothered by scattered sunlight, which makes the stars invisible in the bright daytime sky ...
... horizon, and thus invisible. So we will look under the drop-down ‘View’ tab and hit “Hide Horizon.” The Earth becomes transparent, so we can look in any direction and see any star in the sky! So that we are not bothered by scattered sunlight, which makes the stars invisible in the bright daytime sky ...
Lecture 5
... • Binary stars, in which two stars are held in orbit • around each other by their mutual gravitational attraction, are surprisingly common • Those that can be resolved into two distinct star images by an Earth-based telescope are called visual binaries • Each of the two stars in a binary system move ...
... • Binary stars, in which two stars are held in orbit • around each other by their mutual gravitational attraction, are surprisingly common • Those that can be resolved into two distinct star images by an Earth-based telescope are called visual binaries • Each of the two stars in a binary system move ...
AST 112 – Activity #4 The Stellar Magnitude System
... necessary. Hint: Also refer to Table 4-1 above. (a) Is star J further than, closer to, or equal to 10 pc distant? ...
... necessary. Hint: Also refer to Table 4-1 above. (a) Is star J further than, closer to, or equal to 10 pc distant? ...
Assignment 1
...
Hipparcos was a space-astrometry mission that measured the parallax angle of 2.5 million stars. In this exercise,
we will query the Hipparcos catalog, edit the data into a format suitable for input to a spreadsheet, then use the
data to study the dist ...
...
A journey between two galaxies spans human history
... speeds -- of light and sound, and distances -- around the Earth, from the Earth to the Moon, Sun, etc. Naturally we have to use some form of measurements. So for this show, we provide both versions of the accompanying text/ graphics images; and there are two soundtracks on the CD: one that uses mile ...
... speeds -- of light and sound, and distances -- around the Earth, from the Earth to the Moon, Sun, etc. Naturally we have to use some form of measurements. So for this show, we provide both versions of the accompanying text/ graphics images; and there are two soundtracks on the CD: one that uses mile ...
Triangulation and Spectroscopy In-class Assignment
... This sound effect was first described by Christian Andreas Doppler and is called the Doppler effect. Since light also emanates in wavelengths, this means that the wavelengths can stretch or crunch together depending on the relative position of objects. That said, we don't notice it on daily-life-siz ...
... This sound effect was first described by Christian Andreas Doppler and is called the Doppler effect. Since light also emanates in wavelengths, this means that the wavelengths can stretch or crunch together depending on the relative position of objects. That said, we don't notice it on daily-life-siz ...
The night sky in October and November
... from the second highest pair of stars and about equal to the distance between them. You should see a hazy patch of light. It also is known as M31, the “M” standing for Messier. M31 is a Messier object. Time-elapse photos through a large telescope reveal it as a spiral galaxy about four times the wid ...
... from the second highest pair of stars and about equal to the distance between them. You should see a hazy patch of light. It also is known as M31, the “M” standing for Messier. M31 is a Messier object. Time-elapse photos through a large telescope reveal it as a spiral galaxy about four times the wid ...
Powerpoint Presentation (large file)
... are concentrated in the disk of the Galaxy • Clouds within the interstellar medium are called nebulae • Dark nebulae are so dense that they are opaque • They appear as dark blots against a background of distant stars • Emission nebulae, or H II regions, are glowing, ionized clouds of gas • Emission ...
... are concentrated in the disk of the Galaxy • Clouds within the interstellar medium are called nebulae • Dark nebulae are so dense that they are opaque • They appear as dark blots against a background of distant stars • Emission nebulae, or H II regions, are glowing, ionized clouds of gas • Emission ...
Black Hole at Galactic Center
... with a sketch of the equivalent, circular orbit with radius rave.) ...
... with a sketch of the equivalent, circular orbit with radius rave.) ...
Measuring the Sky - Physics and Astronomy and more!
... 1841:"Formed a design in the beginning of this week, of investigating, as soon as possible after taking my degree, the irregularities of the motion of Uranus, which are yet unaccounted for; in order to find out whether they may be attributed to the action of an undiscovered planet beyond it; and if ...
... 1841:"Formed a design in the beginning of this week, of investigating, as soon as possible after taking my degree, the irregularities of the motion of Uranus, which are yet unaccounted for; in order to find out whether they may be attributed to the action of an undiscovered planet beyond it; and if ...
Magnitude - Word
... Launch Extragalactic Color Magnitude Diagrams Don’t forget to record data and observations as you work through this activity. All of the questions and reminders from the activity are listed in order below. 1. Describe, draw, or insert an image of the galaxy Favourite you chose to import into Zoo Too ...
... Launch Extragalactic Color Magnitude Diagrams Don’t forget to record data and observations as you work through this activity. All of the questions and reminders from the activity are listed in order below. 1. Describe, draw, or insert an image of the galaxy Favourite you chose to import into Zoo Too ...
Integrative Studies 410 Our Place in the Universe
... • Implosion of a white dwarf after it accretes a certain amount of matter, reaching about 1.4 solar masses • Very predictable; used as a standard candle – Estimate distances to galaxies where they occur ...
... • Implosion of a white dwarf after it accretes a certain amount of matter, reaching about 1.4 solar masses • Very predictable; used as a standard candle – Estimate distances to galaxies where they occur ...
Announcements: Pre
... Jupiter has an angular diameter of 31.2 arcseconds. The distance between Jupiter and the Earth is measured to be 9.43 x 108km. What is the diameter of Jupiter in kilometers? a)1.43 x 105 km ...
... Jupiter has an angular diameter of 31.2 arcseconds. The distance between Jupiter and the Earth is measured to be 9.43 x 108km. What is the diameter of Jupiter in kilometers? a)1.43 x 105 km ...
Project 2. CCD Photometry
... In 120 B.C. Hipparcus classified the naked‐eye stars according to their brightness into six categories or magnitudes. The brightest stars were assigned to category one (first magnitude) and the faintest stars to category six (sixth magnitude), which is the limit of human visual perception (wi ...
... In 120 B.C. Hipparcus classified the naked‐eye stars according to their brightness into six categories or magnitudes. The brightest stars were assigned to category one (first magnitude) and the faintest stars to category six (sixth magnitude), which is the limit of human visual perception (wi ...
Chapter 14 The Milky Way Galaxy
... luminosity; knowing their apparent magnitude allows us to calculate the distance. (How?) • Cepheids have a luminosity that is strongly correlated with the period of their oscillations; once the period is measured, the luminosity is known and we can proceed as above. ...
... luminosity; knowing their apparent magnitude allows us to calculate the distance. (How?) • Cepheids have a luminosity that is strongly correlated with the period of their oscillations; once the period is measured, the luminosity is known and we can proceed as above. ...
luminosities
... With ground-based telescopes, we can measure parallaxes p ≥ 0.02 arc sec => d ≤ 50 pc ...
... With ground-based telescopes, we can measure parallaxes p ≥ 0.02 arc sec => d ≤ 50 pc ...
Branches of Earth Science Tools Used to Study Stars Constellations
... Light Year- Astronomers use light years to measure the distances between stars o A light year is the distance that light travels in one year 9,460,730,472,580.8 km 5,878,630,000,000 miles ...
... Light Year- Astronomers use light years to measure the distances between stars o A light year is the distance that light travels in one year 9,460,730,472,580.8 km 5,878,630,000,000 miles ...
Planetary Distances on the Playground
... instance, Jupiter is about 4.3 AU (an astronomical unit is a unit of distance that is approximately equal to the average distance between Earth and Sun) from Saturn, and Saturn is about 9.7 AU from Uranus. This could be an opportunity to talk about the difference between empirical laws and other phy ...
... instance, Jupiter is about 4.3 AU (an astronomical unit is a unit of distance that is approximately equal to the average distance between Earth and Sun) from Saturn, and Saturn is about 9.7 AU from Uranus. This could be an opportunity to talk about the difference between empirical laws and other phy ...
What is a Scientist? - Cockeysville Middle School
... What tool do scientists use to study the composition of stars? Spectrograph ESS-5B ...
... What tool do scientists use to study the composition of stars? Spectrograph ESS-5B ...
Cosmic distance ladder
The cosmic distance ladder (also known as the extragalactic distance scale) is the succession of methods by which astronomers determine the distances to celestial objects. A real direct distance measurement of an astronomical object is possible only for those objects that are ""close enough"" (within about a thousand parsecs) to Earth. The techniques for determining distances to more distant objects are all based on various measured correlations between methods that work at close distances and methods that work at larger distances. Several methods rely on a standard candle, which is an astronomical object that has a known luminosity.The ladder analogy arises because no one technique can measure distances at all ranges encountered in astronomy. Instead, one method can be used to measure nearby distances, a second can be used to measure nearby to intermediate distances, and so on. Each rung of the ladder provides information that can be used to determine the distances at the next higher rung.