Sample Exam for 3 rd Astro Exam
... A. In the galactic halo. B. In the galactic nuclear bulge C. Beyond the Sun above and below the galactic mid-plane D. Perpendicular to the galactic plane. E. In the galactic mid-plane 16. True or false: The Sun is located within the galactic gas layer of the Milky Way A. True B. False C. I have no @ ...
... A. In the galactic halo. B. In the galactic nuclear bulge C. Beyond the Sun above and below the galactic mid-plane D. Perpendicular to the galactic plane. E. In the galactic mid-plane 16. True or false: The Sun is located within the galactic gas layer of the Milky Way A. True B. False C. I have no @ ...
Chapter 5 Galaxies and Star Systems
... between the stars. Because there is little gas or dust, stars are no longer forming. Most elliptical galaxies contain only old stars. Some galaxies do not have regular shapes, thus they are called irregular galaxies. These galaxies are typically smaller than other types of galaxies and generally hav ...
... between the stars. Because there is little gas or dust, stars are no longer forming. Most elliptical galaxies contain only old stars. Some galaxies do not have regular shapes, thus they are called irregular galaxies. These galaxies are typically smaller than other types of galaxies and generally hav ...
the galaxy in which we live - Cosmos
... what we know as the Solar System. Our Solar System together with billions of other stars, planets, gas, dust, radiation, and invisible material (dark matter), are gravitationally bound forming a much larger structure: our Milky Way Galaxy. There are huge numbers of galaxies apart from our own, const ...
... what we know as the Solar System. Our Solar System together with billions of other stars, planets, gas, dust, radiation, and invisible material (dark matter), are gravitationally bound forming a much larger structure: our Milky Way Galaxy. There are huge numbers of galaxies apart from our own, const ...
1” “Sky-Notes” of the Open University Astronomy Club. April 2006. 1
... same area of the sky. Star hopping skills will be well exercised. One note of caution though - there are numerous other galaxies bright enough to be detected in small and moderate instruments to cause confusion if care is not taken! Correct identification of objects in a crowded field presents a ver ...
... same area of the sky. Star hopping skills will be well exercised. One note of caution though - there are numerous other galaxies bright enough to be detected in small and moderate instruments to cause confusion if care is not taken! Correct identification of objects in a crowded field presents a ver ...
File - Mr. Catt`s Class
... 1. Hubble’s tuning fork diagram relates the various types of galaxies. In his plan, S0 galaxies form the connecting link, because they have characteristics of both elliptical and spiral galaxies. 2. Astronomers once also thought the diagram represented an evolutionary sequence, but this interpretati ...
... 1. Hubble’s tuning fork diagram relates the various types of galaxies. In his plan, S0 galaxies form the connecting link, because they have characteristics of both elliptical and spiral galaxies. 2. Astronomers once also thought the diagram represented an evolutionary sequence, but this interpretati ...
Chapter 26
... and contain 100 million to 10 billion stars, making them larger than dwarf ellipticals but smaller than spirals. ...
... and contain 100 million to 10 billion stars, making them larger than dwarf ellipticals but smaller than spirals. ...
... • Beyond the Milky Way are billions of other galaxies • Some galaxies are spiral like the Milky Way while others are egg-shaped or completely irregular in appearance • Besides shape, galaxies vary greatly in the star, gas, and dust content and some are more “active” than others • Galaxies tend to cl ...
Cosmology Handouts
... Rainbows reveal that white light is a combination of all the colours. In 1666, Isaac Newton showed that white light could be separated into its component colours using glass prisms. Soon scientists were using this new tool to analyze the light coming from several different light sources. Some scient ...
... Rainbows reveal that white light is a combination of all the colours. In 1666, Isaac Newton showed that white light could be separated into its component colours using glass prisms. Soon scientists were using this new tool to analyze the light coming from several different light sources. Some scient ...
Take Home #1 Complete the following on your own paper. Do not
... 14) Which of the following is an example of technology? A. the Moon's gravitational constant D. Hubble photographs of the Moon B. chemical composition of Moon rocks E. phases of the Moon C. the moon's orbit 15) A prediction made in the Big Bang Theory is that the entire universe should be filled wit ...
... 14) Which of the following is an example of technology? A. the Moon's gravitational constant D. Hubble photographs of the Moon B. chemical composition of Moon rocks E. phases of the Moon C. the moon's orbit 15) A prediction made in the Big Bang Theory is that the entire universe should be filled wit ...
Take Home #1 Complete the following on your own paper. Do not
... 14) Which of the following is an example of technology? A. the Moon's gravitational constant D. Hubble photographs of the Moon B. chemical composition of Moon rocks E. phases of the Moon C. the moon's orbit 15) A prediction made in the Big Bang Theory is that the entire universe should be filled wit ...
... 14) Which of the following is an example of technology? A. the Moon's gravitational constant D. Hubble photographs of the Moon B. chemical composition of Moon rocks E. phases of the Moon C. the moon's orbit 15) A prediction made in the Big Bang Theory is that the entire universe should be filled wit ...
Lecture notes 18: Galaxies and galaxy clusters
... Lecture notes 18: Galaxies and galaxy clusters Immanuel Kant (1724–1824) and Thomas Wright (1711–1786) were among the first to recocnize the possibility that the Milky Way was indeed a stellar disk where the Sun was but one of many. Kant went on to propose that if the Milky Way were limited then perh ...
... Lecture notes 18: Galaxies and galaxy clusters Immanuel Kant (1724–1824) and Thomas Wright (1711–1786) were among the first to recocnize the possibility that the Milky Way was indeed a stellar disk where the Sun was but one of many. Kant went on to propose that if the Milky Way were limited then perh ...
W > 1 - The Open University
... NGC4374 (M84) (9.3) eg and NGC4406 (M86) (9.2) eg easily visible in the same field of view. Scan this field carefully to locate other non-Messier galaxies. Note their positions and sketch the field, then use a suitable star chart to identify them. NGC4486 (M87) (8.6) eg. About 1o southeast of M84 & ...
... NGC4374 (M84) (9.3) eg and NGC4406 (M86) (9.2) eg easily visible in the same field of view. Scan this field carefully to locate other non-Messier galaxies. Note their positions and sketch the field, then use a suitable star chart to identify them. NGC4486 (M87) (8.6) eg. About 1o southeast of M84 & ...
Winners of the OBAFGKM Mnemonic Quasars & Active Galactic Nuclei—4 April
... something in orbit Speed of ejected material ...
... something in orbit Speed of ejected material ...
Apparent magnitude
... shape and size, and the Sun is located asymmetrically more to the south rather than the north (1800’s) J. Kapteyn estimated the size of the G by counting stars, the Sun is in the centre, proof for galactic rotation (Kapteyn’s ...
... shape and size, and the Sun is located asymmetrically more to the south rather than the north (1800’s) J. Kapteyn estimated the size of the G by counting stars, the Sun is in the centre, proof for galactic rotation (Kapteyn’s ...
lecture25
... visible matter by 1 to 10 It is the dominant source of gravity in the Universe The Universe is made of Dark Matter Visible Matter is only the tip of the iceberg Yet, even if we detect Its presence, we still do not know what Dark Matter is made of! ...
... visible matter by 1 to 10 It is the dominant source of gravity in the Universe The Universe is made of Dark Matter Visible Matter is only the tip of the iceberg Yet, even if we detect Its presence, we still do not know what Dark Matter is made of! ...
astronomy - sfox4science
... Dwarf planets such as ______________, and other celestial objects such as __________, _________________, ________________________, and _____________________. The universe, all of space and everything in it, contains billions and billions of stars and galaxies. A galaxy is a giant structure that cont ...
... Dwarf planets such as ______________, and other celestial objects such as __________, _________________, ________________________, and _____________________. The universe, all of space and everything in it, contains billions and billions of stars and galaxies. A galaxy is a giant structure that cont ...
Determination of spiral orbits with constant tangential velocity
... established physics additional Dark Matter is postulated, whose nature is still unknown. The ECE theory is treading a different path instead. It is assumed that the stars do not circulate in nearly circular orbits around the center but move in a spiral path from their origin at the center to the out ...
... established physics additional Dark Matter is postulated, whose nature is still unknown. The ECE theory is treading a different path instead. It is assumed that the stars do not circulate in nearly circular orbits around the center but move in a spiral path from their origin at the center to the out ...
Document
... • What causes the mass to keep on increasing? • Don’t see anything there. Thus “dark” matter. ...
... • What causes the mass to keep on increasing? • Don’t see anything there. Thus “dark” matter. ...
Milky Way
... Dark Matter • What causes the mass to keep on increasing? • Don’t see anything there. Thus “dark” matter. ...
... Dark Matter • What causes the mass to keep on increasing? • Don’t see anything there. Thus “dark” matter. ...
The Galaxy Presentation 2011
... •10kpc diameter and 2kpc thick with the Sun less than a kpc from the center (rather heliocentric) •Tried to estimate Rayleigh scattering due to ISM gas but determined it to be insignificant (because most obscuration is due to ISM dust absorption which has a smaller dependence) •Shapley (1919) note ...
... •10kpc diameter and 2kpc thick with the Sun less than a kpc from the center (rather heliocentric) •Tried to estimate Rayleigh scattering due to ISM gas but determined it to be insignificant (because most obscuration is due to ISM dust absorption which has a smaller dependence) •Shapley (1919) note ...
the star
... • Proxima Centauri – closest of the triplet of stars loosely known as alpha-Centauri Proxima Centauri is a faint red star that orbits Alpha-Centauri A and B with a period of about one million years. Proxima Centauri is 4.22 light years from the Earth (now) and about 0.24 light years from Alpha-Ce ...
... • Proxima Centauri – closest of the triplet of stars loosely known as alpha-Centauri Proxima Centauri is a faint red star that orbits Alpha-Centauri A and B with a period of about one million years. Proxima Centauri is 4.22 light years from the Earth (now) and about 0.24 light years from Alpha-Ce ...
Chapter 14 The Milky Way Galaxy
... The galactic halo and globular clusters formed very early; the halo is essentially spherical. All the stars in the halo are very old, and there is no gas and dust. The galactic disk is where the youngest stars are, as well as star formation regions – emission nebulae, large clouds of gas and ...
... The galactic halo and globular clusters formed very early; the halo is essentially spherical. All the stars in the halo are very old, and there is no gas and dust. The galactic disk is where the youngest stars are, as well as star formation regions – emission nebulae, large clouds of gas and ...
Lecture 18, Gravitational Waves, Future Missions and
... LSST will also provide the first large (and deep) surveys for optical transients. Transient sources include: - Supernovae and GRBs - gravitational lens variability - AGN and blazars - microlensing events - variable stars - possibly stellar disruptions by black holes, binary mergers, ... LSST will pr ...
... LSST will also provide the first large (and deep) surveys for optical transients. Transient sources include: - Supernovae and GRBs - gravitational lens variability - AGN and blazars - microlensing events - variable stars - possibly stellar disruptions by black holes, binary mergers, ... LSST will pr ...
Galaxy Zoo
Galaxy Zoo is a crowdsourced astronomy project which invites people to assist in the morphological classification of large numbers of galaxies. (e.g.) It is an example of citizen science as it enlists the help of members of the public to help in scientific research. There have been seven versions up to July 2014, which are outlined in this article. Galaxy Zoo is part of the Zooniverse, a group of citizen science projects.