Chapter 2 Knowing the Heavens
... meridian transits of the Sun IF it moved at a constant rate (exactly 24 hrs). • Sidereal time: the interval of time between two successive meridian transits of a star (23 hrs 56 min). ...
... meridian transits of the Sun IF it moved at a constant rate (exactly 24 hrs). • Sidereal time: the interval of time between two successive meridian transits of a star (23 hrs 56 min). ...
Ch2a
... The Elevation of the North Pole Star The north pole star is always at an elevation, or altitude, a, above the northern horizon, that is equal to the latitude, of the observer. Circumpolar stars are stars which are always in view. They never set below the horizon. All stars with declinations ...
... The Elevation of the North Pole Star The north pole star is always at an elevation, or altitude, a, above the northern horizon, that is equal to the latitude, of the observer. Circumpolar stars are stars which are always in view. They never set below the horizon. All stars with declinations ...
Astronomy Homework - Life
... 36. If the remnant of a supernova has less than 3 solar masses, the remnant is called a (neutron star/black hole). 37. Neutrons stars haves sizes of about (ten/ten thousand) kilometers. 38. A pulsar is a rapidly rotating neutron star that emits (a beam of light towards the Earth/radio signals at ir ...
... 36. If the remnant of a supernova has less than 3 solar masses, the remnant is called a (neutron star/black hole). 37. Neutrons stars haves sizes of about (ten/ten thousand) kilometers. 38. A pulsar is a rapidly rotating neutron star that emits (a beam of light towards the Earth/radio signals at ir ...
Alone in the Universe - Let There Be Light : The Book
... © 2011 Sigma Xi, The Scientific Research Society. Reproduction with permission only. Contact [email protected]. ...
... © 2011 Sigma Xi, The Scientific Research Society. Reproduction with permission only. Contact [email protected]. ...
Sizing-up the planets activity
... paper models of each planet and the sun using a given scale. Materials Needed: 2 sheets regular size poster paper drawing compass (metric) scissors string (22 cm length) pencil string or yarn (13.28 m length) ...
... paper models of each planet and the sun using a given scale. Materials Needed: 2 sheets regular size poster paper drawing compass (metric) scissors string (22 cm length) pencil string or yarn (13.28 m length) ...
History of the Universe and Solar System
... No, gravitational forces have slowed down the galaxies since the Big Bang. (Note: Recent observations suggest this was the case for the first 2/3 of the Universe’s history. The expansion rate now seems to have increased for the last 1/3 of the Universe’s history. This is explained by “dark phantom e ...
... No, gravitational forces have slowed down the galaxies since the Big Bang. (Note: Recent observations suggest this was the case for the first 2/3 of the Universe’s history. The expansion rate now seems to have increased for the last 1/3 of the Universe’s history. This is explained by “dark phantom e ...
9. Lectures on Star Formation.
... Birth process of a star can be divided into two main distinctive stages: Proto-star-phase: -Proto-stars still in process of attaining star-like structure. -Proto-stars accompanied by strong outflows and jets -Surrounded by accretion disks. Disk adding more mass onto the proto-star. -Proto-star hidd ...
... Birth process of a star can be divided into two main distinctive stages: Proto-star-phase: -Proto-stars still in process of attaining star-like structure. -Proto-stars accompanied by strong outflows and jets -Surrounded by accretion disks. Disk adding more mass onto the proto-star. -Proto-star hidd ...
Lecture 17 Review
... Short-lived massive stars, 20 to 40 solar masses , live only a few million years but we see them. The process for star formation is thought to involve a large cloud of gas, say 1035 kg or 105 solar masses, cold enough so that gravity can overcome random thermal motion. The cloud contracts gravitatio ...
... Short-lived massive stars, 20 to 40 solar masses , live only a few million years but we see them. The process for star formation is thought to involve a large cloud of gas, say 1035 kg or 105 solar masses, cold enough so that gravity can overcome random thermal motion. The cloud contracts gravitatio ...
Pluto`s Bald Cousin
... until it was downgraded to a dwarf planet like Makemake. Dwarf planets are basically too small to be labelled as planets, but they still are spherical objects – like planets – and bigger than asteroids. We know very little about our closer dwarf planets, and knew practically nothing about Makemake. ...
... until it was downgraded to a dwarf planet like Makemake. Dwarf planets are basically too small to be labelled as planets, but they still are spherical objects – like planets – and bigger than asteroids. We know very little about our closer dwarf planets, and knew practically nothing about Makemake. ...
annie jump cannon
... stars into the spectral classes O, B, A, F, G, K, M. (mnemonically recognized as Oh Be A Fine Girl Kiss Me) ...
... stars into the spectral classes O, B, A, F, G, K, M. (mnemonically recognized as Oh Be A Fine Girl Kiss Me) ...
Support worksheet – Topic 3 Questions
... Suggest why the stellar parallax method is limited to distances of about 300 pc for Earth-based telescopes but can be extended to 1000 pc for satellite-based telescopes. ...
... Suggest why the stellar parallax method is limited to distances of about 300 pc for Earth-based telescopes but can be extended to 1000 pc for satellite-based telescopes. ...
Adventurer Pathfinder
... Astronomy: The study of stars, planets, and space. Comet: A bright heavenly body with a long tail of light. Constellation: A group of stars that form a shape or pattern. Earth: The planet on which we live. Galaxy: A very large group of stars and planets. Light-Year: The distance light travels in one ...
... Astronomy: The study of stars, planets, and space. Comet: A bright heavenly body with a long tail of light. Constellation: A group of stars that form a shape or pattern. Earth: The planet on which we live. Galaxy: A very large group of stars and planets. Light-Year: The distance light travels in one ...
Reading the Stars
... 3. (a) Based on the order you have derived, what can you say about what happens to a star during its existence? (b) Does a star begin as a white dwarf, main sequence or red giant star? (c) Following that stage, what does the star become? (d) Do all stars evolve the same way, at the same pace? (e) Ho ...
... 3. (a) Based on the order you have derived, what can you say about what happens to a star during its existence? (b) Does a star begin as a white dwarf, main sequence or red giant star? (c) Following that stage, what does the star become? (d) Do all stars evolve the same way, at the same pace? (e) Ho ...
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 ...
IAUS 298: Setting the Scene for Gaia and LAMOST, The current and
... New determinations of Vc and local DM density (Bovy) The existence and properties (scale length and height) of the thick disc (Bensby). It is still discussed if the thick disc exists. It could have a shorter scale length than the thin disc in a way that the thick disc actually dominates the inner di ...
... New determinations of Vc and local DM density (Bovy) The existence and properties (scale length and height) of the thick disc (Bensby). It is still discussed if the thick disc exists. It could have a shorter scale length than the thin disc in a way that the thick disc actually dominates the inner di ...
Phys133-Sample MT2
... D) surface temperature of the star. E) total amount of light that the star will radiate over its entire lifetime. 8) Which of the following is closest in MASS to a white dwarf? A) the Moon B) Earth C) the Sun ...
... D) surface temperature of the star. E) total amount of light that the star will radiate over its entire lifetime. 8) Which of the following is closest in MASS to a white dwarf? A) the Moon B) Earth C) the Sun ...
PowerPoint
... Formation of OUR Solar System? • Looks like a supernova explosion nearby may have done the job… Probably a type II high-mass star supernova, from the relative abundances of elements in meteorites. • Blast wave compresses interstellar cloud, and the debris of that explosion is contained in the first ...
... Formation of OUR Solar System? • Looks like a supernova explosion nearby may have done the job… Probably a type II high-mass star supernova, from the relative abundances of elements in meteorites. • Blast wave compresses interstellar cloud, and the debris of that explosion is contained in the first ...
The Solar System PPT
... The four inner planets are called terrestrial planets because their surfaces are solid (and, as the name implies, somewhat similar to Earth — although the term can be misleading because each of the four has vastly different environments). They’re made up mostly of heavy metals such as iron and nick ...
... The four inner planets are called terrestrial planets because their surfaces are solid (and, as the name implies, somewhat similar to Earth — although the term can be misleading because each of the four has vastly different environments). They’re made up mostly of heavy metals such as iron and nick ...
PowerPoint Presentation - ASTR498E High energy
... The area under consideration must be oriented face-on to lineof-sight to the star In principle, this definition works for any kind of energy emitted by the star… most commonly, we mean e/m radiation Sometimes, it is useful to consider the observed flux in a restricted range of e/m wavelengths (e.g., ...
... The area under consideration must be oriented face-on to lineof-sight to the star In principle, this definition works for any kind of energy emitted by the star… most commonly, we mean e/m radiation Sometimes, it is useful to consider the observed flux in a restricted range of e/m wavelengths (e.g., ...
Stellar Evolution - Harnett County High Schools Wiki
... Mass and composition of stars determine nearly all of the other properties of stars More massive a star is, the greater the gravity is, and the hotter and denser the star is inside Temperature inside stars determines rate of nuclear reactions, which in turn affects the energy output, or luminosi ...
... Mass and composition of stars determine nearly all of the other properties of stars More massive a star is, the greater the gravity is, and the hotter and denser the star is inside Temperature inside stars determines rate of nuclear reactions, which in turn affects the energy output, or luminosi ...
Study Guide
... • Stars on the lower left of the H-R Diagram fainter than Main Sequence stars of the same Temperature. – Means they must be smaller in radius. – L-R-T Relation predicts: R ~ 0.01 Rsun (~ size of Earth!) ...
... • Stars on the lower left of the H-R Diagram fainter than Main Sequence stars of the same Temperature. – Means they must be smaller in radius. – L-R-T Relation predicts: R ~ 0.01 Rsun (~ size of Earth!) ...