Lecture 2: Exoplanets and life
... • Venus spectrum: photons emanate from cold, high parts of the (IR-optically thick) atmosphere. No photons here go from the hot 735 K surface directly to space. • Exoplanets: we may need to infer the amount of greenhouse gases from spectra and use models to estimate the surface temperature if ther ...
... • Venus spectrum: photons emanate from cold, high parts of the (IR-optically thick) atmosphere. No photons here go from the hot 735 K surface directly to space. • Exoplanets: we may need to infer the amount of greenhouse gases from spectra and use models to estimate the surface temperature if ther ...
Frostburg State Planetarium presents
... • South is where sun is highest in sky (in mid day) • West is about where sun sets each afternoon. ...
... • South is where sun is highest in sky (in mid day) • West is about where sun sets each afternoon. ...
a MS Word version.
... unaided eye. Relate the story of how these three planets were discovered and how their discoveries are related. When and how was Charon (Pluto's moon) discovered? (News flash: there is new info. on the discovery of Neptune - go to: http://SkyandTelescope.com/printable/news/current/article_935.asp to ...
... unaided eye. Relate the story of how these three planets were discovered and how their discoveries are related. When and how was Charon (Pluto's moon) discovered? (News flash: there is new info. on the discovery of Neptune - go to: http://SkyandTelescope.com/printable/news/current/article_935.asp to ...
The Sky Tonight - Northern Stars Planetarium
... space. It’s the result of the death of an average star (like the Sun). The nebulosity you see is the outer layers of the star that have been blown out into space. Planetary nebula actually have no relationship to planets. They’re called planetary because of their appearance only, which led early ast ...
... space. It’s the result of the death of an average star (like the Sun). The nebulosity you see is the outer layers of the star that have been blown out into space. Planetary nebula actually have no relationship to planets. They’re called planetary because of their appearance only, which led early ast ...
The Final Flight of Atlantis - Westchester Amateur Astronomers
... way into the constellation of Virgo where it will have a close encounter with Saturn at month’s end. The two planets are about the same brightness (anywhere between +1.0 and +1.5 magnitude) and will come within about 1° of each other on the 30th of the month. SERVING THE ASTRONOMY COMMUNITY SINCE 19 ...
... way into the constellation of Virgo where it will have a close encounter with Saturn at month’s end. The two planets are about the same brightness (anywhere between +1.0 and +1.5 magnitude) and will come within about 1° of each other on the 30th of the month. SERVING THE ASTRONOMY COMMUNITY SINCE 19 ...
Celestial Objects
... the polar axis, causing the gradual apparent shift of the NCP and SCP. This causes the “pole” stars – any bright star that happens to be within a few degrees of the NCP and SCP – to be represented by different stars at various times. ...
... the polar axis, causing the gradual apparent shift of the NCP and SCP. This causes the “pole” stars – any bright star that happens to be within a few degrees of the NCP and SCP – to be represented by different stars at various times. ...
Presentation - The Stimulating Physics Network
... Humans wouldn’t be able to live on a planet with very low gravity. Some people say that there are benefits of living with no gravity such as relief to back pain, poor circulation being improved in addition to with some surgeries becoming simpler to perform. This however, is not true as low gravity w ...
... Humans wouldn’t be able to live on a planet with very low gravity. Some people say that there are benefits of living with no gravity such as relief to back pain, poor circulation being improved in addition to with some surgeries becoming simpler to perform. This however, is not true as low gravity w ...
A Planetary System Around Our Nearest Star is Emerging
... planet is as massive as Earth, only 13% more massive, although too hot for life. This new result opens the possibilit might be other Earth-size planets in the Alpha Centauri system, including some potentially habitable. The Alpha Centauri stellar system consists of three stars about 4.4 light years ...
... planet is as massive as Earth, only 13% more massive, although too hot for life. This new result opens the possibilit might be other Earth-size planets in the Alpha Centauri system, including some potentially habitable. The Alpha Centauri stellar system consists of three stars about 4.4 light years ...
Temperate Earth-sized planets transiting a nearby ultracool
... the relatively large equilibrium temperatures of TRAPPIST-1b and TRAPPIST-1c would probably prevent such trapping27. In contrast, TRAPPIST-1d orbits within or beyond the habitable zone of the star, its most likely periods corresponding to semi-major axes of between 0.033 and 0.093 AU. We estimate ti ...
... the relatively large equilibrium temperatures of TRAPPIST-1b and TRAPPIST-1c would probably prevent such trapping27. In contrast, TRAPPIST-1d orbits within or beyond the habitable zone of the star, its most likely periods corresponding to semi-major axes of between 0.033 and 0.093 AU. We estimate ti ...
April 10th
... • Hot core ionizes the escaping atmosphere • Colors come from a mix of emission lines such as oxygen (green), nitrogen (red), and hydrogen ...
... • Hot core ionizes the escaping atmosphere • Colors come from a mix of emission lines such as oxygen (green), nitrogen (red), and hydrogen ...
6 March 2013 Exoplanets and Where to Find Them Professor
... cloud which surround the cluster, and glow a characteristic bright pink colour due to the hydrogen atoms they contain being warmed and excited by the energy emitted by the hot young stars. The Proplyds of the Orion Nebula The Great Nebula in Orion’s sword is (at a distance of 1,500 light-years from ...
... cloud which surround the cluster, and glow a characteristic bright pink colour due to the hydrogen atoms they contain being warmed and excited by the energy emitted by the hot young stars. The Proplyds of the Orion Nebula The Great Nebula in Orion’s sword is (at a distance of 1,500 light-years from ...
Unit 7 Astronomy
... A meteoroid is a sand- to boulder-sized particle of 4. Meteors: ____________________________ debris in the Solar System. The visible path of a meteoroid that enter _________________________________________ Earth's atmosphere is called a meteor, or a shooting star. If a ______________________________ ...
... A meteoroid is a sand- to boulder-sized particle of 4. Meteors: ____________________________ debris in the Solar System. The visible path of a meteoroid that enter _________________________________________ Earth's atmosphere is called a meteor, or a shooting star. If a ______________________________ ...
Looking for life in unlikely places: reasons why planets may not be
... inner edge of the Kuiper Belt is covered with sunflowers. These creatures are living in sunlight that is a hundred times weaker than sunlight on Europa. So they must have evolved optical concentrators that are a hundred times stronger. They must concentrate sunlight by a factor of 2500 instead of 25. ...
... inner edge of the Kuiper Belt is covered with sunflowers. These creatures are living in sunlight that is a hundred times weaker than sunlight on Europa. So they must have evolved optical concentrators that are a hundred times stronger. They must concentrate sunlight by a factor of 2500 instead of 25. ...
doc
... e. How far must the ball be moved before half of the lighted side is visible? The ball must be moved one-quarter of the way around their head. Before all of the lighted side is visible? half-way around f. What happens if you keep moving the ball in the same direction? They begin to see less and less ...
... e. How far must the ball be moved before half of the lighted side is visible? The ball must be moved one-quarter of the way around their head. Before all of the lighted side is visible? half-way around f. What happens if you keep moving the ball in the same direction? They begin to see less and less ...
Big idea # 5 * Earth in space in time
... relative to solar system, galaxy, and universe, including distance, size, and composition. SC.8.E.5.4 Explore the Law of Universal Gravitation by explaining the role that gravity plays in the formation of planets, stars, and solar systems and in determining their motions. SC.8.E.5.5 Describe and cla ...
... relative to solar system, galaxy, and universe, including distance, size, and composition. SC.8.E.5.4 Explore the Law of Universal Gravitation by explaining the role that gravity plays in the formation of planets, stars, and solar systems and in determining their motions. SC.8.E.5.5 Describe and cla ...
The Little Star That Could - Challenger Learning Center
... The Earth is the third planet from the Sun in a system that includes the Moon, the Sun, eight other planets and their moons, and smaller objects, such as asteroids and comets. The Sun, an average star, is the central and largest body in the Solar System. (5 – 8 Standard) ...
... The Earth is the third planet from the Sun in a system that includes the Moon, the Sun, eight other planets and their moons, and smaller objects, such as asteroids and comets. The Sun, an average star, is the central and largest body in the Solar System. (5 – 8 Standard) ...
Spring 2017 - Astronomers of Humboldt
... one commemorated the 50th anniversary of the incorporation of AOH. It is our hope that this year’s Potluck will mark the beginning of many more potlucks to come. It was an enjoyable evening with new and veteran members coming together for fellowship and good food. We were fortunate to enlist HSU Pro ...
... one commemorated the 50th anniversary of the incorporation of AOH. It is our hope that this year’s Potluck will mark the beginning of many more potlucks to come. It was an enjoyable evening with new and veteran members coming together for fellowship and good food. We were fortunate to enlist HSU Pro ...
East Valley Astronomy Club
... the Kuiper Belt, and Jupiter’s Trojan asteroids, etc., etc.). If true, the planets formed closer to the Sun, which speeds up their formation, but still not < 10 Myr. However, if the planets formed closer together, the Minimum Mass Solar Nebula must be wrong! The planets were spread out from 5-15 AU, ...
... the Kuiper Belt, and Jupiter’s Trojan asteroids, etc., etc.). If true, the planets formed closer to the Sun, which speeds up their formation, but still not < 10 Myr. However, if the planets formed closer together, the Minimum Mass Solar Nebula must be wrong! The planets were spread out from 5-15 AU, ...
ASTRONOMY 110G Review Questions for
... To a naked-eye observer, what distinguishes the planets from the stars? What about with a telescope? Describe the motions of the Earth, Sun, Moon, and planets according to the Ptolemaic System. What were the principal difficulties with this picture? What about the Copernican system? Kepler's first t ...
... To a naked-eye observer, what distinguishes the planets from the stars? What about with a telescope? Describe the motions of the Earth, Sun, Moon, and planets according to the Ptolemaic System. What were the principal difficulties with this picture? What about the Copernican system? Kepler's first t ...
document
... allowed extremely accurate predictions of planetary orbits. Cavendish measured gravitational forces between human-scale objects before 1800. ...
... allowed extremely accurate predictions of planetary orbits. Cavendish measured gravitational forces between human-scale objects before 1800. ...
intergalactic move
... Start by colouring all sorts of different coloured spots on the paper. Make sure that you fill the whole paper, so no white is left showing. Then take the black crayon and colour overtop of the others colours. Using an unfolded paperclip , you can gentle scrape away the black top layer to reveal the ...
... Start by colouring all sorts of different coloured spots on the paper. Make sure that you fill the whole paper, so no white is left showing. Then take the black crayon and colour overtop of the others colours. Using an unfolded paperclip , you can gentle scrape away the black top layer to reveal the ...
AP Physics Multiple Choice Practice – Gravitation 1. Each of five
... 25. Two artificial satellites, 1 and 2, are put into circular orbit at the same altitude above Earth’s surface. The mass of satellite 2 is twice the mass of satellite 1. If the period of satellite 1 is T, what is the period of satellite 2? (A) T/2 (B) T (C) 2T (D) 4T 26. A planet has a radius one-ha ...
... 25. Two artificial satellites, 1 and 2, are put into circular orbit at the same altitude above Earth’s surface. The mass of satellite 2 is twice the mass of satellite 1. If the period of satellite 1 is T, what is the period of satellite 2? (A) T/2 (B) T (C) 2T (D) 4T 26. A planet has a radius one-ha ...
astrocoursespring2012lec1-1-5
... double click or if that fails, copy and paste this link into your browser ...
... double click or if that fails, copy and paste this link into your browser ...
Howard 2013 Observed properties of exoplanets
... Observational surveys for extrasolar planets probe the diverse outcomes of planet formation and evolution. These surveys measure the frequency of planets with different masses, sizes, orbital characteristics, and host star properties. Small planets between the sizes of Earth and Neptune substantiall ...
... Observational surveys for extrasolar planets probe the diverse outcomes of planet formation and evolution. These surveys measure the frequency of planets with different masses, sizes, orbital characteristics, and host star properties. Small planets between the sizes of Earth and Neptune substantiall ...
Physics 11 Fall 2012 Practice Problems 7 - Solutions
... amount of energy that we’d need to add to the system to break it apart. Since we’d need to do work on the system to break it apart (ending up with zero total energy), we had to start with a negative energy. The same thing occurs with oppositely-charged particles like protons and electrons, which als ...
... amount of energy that we’d need to add to the system to break it apart. Since we’d need to do work on the system to break it apart (ending up with zero total energy), we had to start with a negative energy. The same thing occurs with oppositely-charged particles like protons and electrons, which als ...
IAU definition of planet
The definition of planet set in Prague in 2006 by the International Astronomical Union (IAU) states that, in the Solar System, a planet is a celestial body which: is in orbit around the Sun, has sufficient mass to assume hydrostatic equilibrium (a nearly round shape), and has ""cleared the neighborhood"" around its orbit.A non-satellite body fulfilling only the first two of these criteria is classified as a ""dwarf planet"". According to the IAU, ""planets and dwarf planets are two distinct classes of objects"". A non-satellite body fulfilling only the first criterion is termed a ""small Solar System body"" (SSSB). Initial drafts planned to include dwarf planets as a subcategory of planets, but because this could potentially have led to the addition of several dozens of planets into the Solar System, this draft was eventually dropped. The definition was a controversial one and has drawn both support and criticism from different astronomers, but has remained in use.According to this definition, there are eight planets in the Solar System. The definition distinguishes planets from smaller bodies and is not useful outside the Solar System, where smaller bodies cannot be found yet. Extrasolar planets, or exoplanets, are covered separately under a complementary 2003 draft guideline for the definition of planets, which distinguishes them from dwarf stars, which are larger.