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Course Notes on Climate Change
Course Notes on Climate Change

... than 0.2 x 10-6 m. This is often called short-wave, or solar, radiation. Nearly all the radiation emitted by the earth is infra-red radiation with a wavelength longer than 0.2 x 10-6 m. This is often called long wave, or terrestrial, radiation. Energy from the sun At the top of the atmosphere, if th ...
ASTRONOMY 113 Laboratory Kepler`s 3rd Law and the Mass of Sgr A
ASTRONOMY 113 Laboratory Kepler`s 3rd Law and the Mass of Sgr A

... black hole itself. This shows you just how powerful Kepler’s laws really are – if only he could have known this when he discovered them... ...
Second Semester Study Guide
Second Semester Study Guide

Stellar Magnitudes & Distances
Stellar Magnitudes & Distances

... • Ancient peoples noticed that the stars weren’t all the same brightnesses. • Hipparchus, a Greek philosopher, invented a system of magnitudes. He called the brightest stars in the sky (like Sirius), first class or first magnitude stars. ...
The Relationship Between a Star`s Brightness and its Distance
The Relationship Between a Star`s Brightness and its Distance

... • Ancient peoples noticed that the stars weren’t all the same brightnesses. • Hipparchus, a Greek philosopher, invented a system of magnitudes. He called the brightest stars in the sky (like Sirius), first class or first magnitude stars. ...
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... Now that you have used Hubble’s constant on your own, describe the significance of Hubble’s constant in your own words. Consider these questions in your explanation. 1. Does the Universe have edges or a center? 2. What does this mean in terms of expansion? 3. Is expansion technically relative to the ...
Gravitation - The Crowned Anarchist Literature and Science Fiction
Gravitation - The Crowned Anarchist Literature and Science Fiction

... change the path of an object. Newton also invented calculus, a new branch of mathematics that became an important tool in the calculations of his theory of gravitation. Newton proposed his law of gravitation in 1687 and stated that every particle in the universe attracts every other particle in the ...
Moon Presentation storyboard
Moon Presentation storyboard

... Your smaller questions What is a myth? How was the moon created? What is astronomy? How does the moon influence the ...
ncam-program-2016 - Cline Observatory
ncam-program-2016 - Cline Observatory

... The Compositions of Small Planets The NASA Kepler Mission has demonstrated that planets larger than Earth yet smaller then Neptune are common around Sun-like stars. Although Kepler determined the physical sizes of hundreds of such worlds, we know virtually nothing about their masses and, by inferenc ...
whole unit notes
whole unit notes

... Distances in the universe are very large indeed. They are too large to be measured in kilometres. Because of this scientists have agreed another unit of distance. A l _ _ _ _ y _ _ _ is the distance travelled by light in one year. ...
A billion pixels, a billion stars
A billion pixels, a billion stars

... ellipses are all aligned. In (b), parallax ellipses from different parts of the sky (field of view 1 and field of view 2) have been projected onto the same image. In this case, the ellipses are not aligned, while the large angle between the two fields of view can be calibrated independently to a ver ...
Astronomy - Mr. Hill`s Science Website
Astronomy - Mr. Hill`s Science Website

... sunlight, while winters are cold due to shortened hours of daylight and weak sunlight. You might think that the extreme heat of summer and the icy cold of winter have something to do with how close Earth is to the Sun, but actually, Earth's orbit is almost circular around the Sun, so there is very l ...
award
award

... According to the nebular hypothesis, which of the following sequences of events are chronologically correct? Solar nebula, interstellar cloud, collisions between planetesimals, accretion, planets. Interstellar cloud, solar nebula, accretion, collisions between planetesimals, planets. Interstellar cl ...
So What All Is Out There, Anyway?
So What All Is Out There, Anyway?

... How can anyone call something 2 million light years away “local”? As you get bigger, you find out, because in the distance you see other groups of galaxies just like our Local Group, and as you grow larger and larger you see these groups, or clusters, of galaxies start to blend together to form long ...
Galileo & the Telescope—Sept 21
Galileo & the Telescope—Sept 21

... in a few days she was reduced to a semicircle. She maintained this shape for many days, all the while, however, growing in size. At present, she is becoming sickle-shaped… ...
Copernicus
Copernicus

... the positions of the sun, moon, and planets, using combinations of circular motion known as epicycles. • An epicycle is an orbit within an orbit • Having set up this model, Ptolemy then went on to describe the mathematics which he needed in the rest of the work. ...
Vulcan Chasers
Vulcan Chasers

Astro 204: Practice Questions Some of these questions are a bit
Astro 204: Practice Questions Some of these questions are a bit

... energy be larger or smaller than that of the Sun? To answer this, do a crude, order-ofmagnitude estimate of the fraction of mass lost as a function of mass. c. A wind of particles, termed the solar wind, is seen streaming radially from the Sun. It is made mostly of protons and electrons, and at the ...
StarWalkKiDS manual en
StarWalkKiDS manual en

... in astronomy, new moon is the phase of the Moon when it lies closest to the Sun in the sky as seen from the Earth. More precisely, it is the instant when the Moon and the Sun have the same ecliptical longitude. The Moon is not normally visible at this time except when it is seen in silhouette during ...
The Sky - HiSPARC
The Sky - HiSPARC

... across the stars takes 24 hours.5 This is why right ascension is given in a time format and not as an angle. ...
Celestial Position Lines
Celestial Position Lines

... It is sometimes not possible to obtain the altitude of the celestial body when it is on same observer’s meridian due to cloud, environmental factors, etc. If the altitude of the celestial body can be obtained a few minutes before or after meridian passage, the Ex-Meridian method can be used to reduc ...
Your Star:  _____________________ d = 1 / p
Your Star: _____________________ d = 1 / p

... – Vega, Deneb, and Altair form the "summer triangle" still prominent in the western sky after sunset; the two stars of Albeiro (A and B) comprise the "Cal star" – star A is yellowish-gold and B is a faint blue. Soon these stars will vanish until spring as the Sun passes in front of them, so if you h ...
Celestial Navigation
Celestial Navigation

... students have got this one wrong. All you need is more practice. Get hold of a sextant and practise with it ashore where you can rely on a stable platform. If you can't get to a beach and take a few sun sights using a natural horizon, use any available objects to practise on: tall buildings, trees, ...
Structure of the Solar System - Beck-Shop
Structure of the Solar System - Beck-Shop

... have a profound effect on our understanding of the universe. Although Newton “stood on the shoulders of giants” such as Copernicus, Kepler, and Galileo, his discoveries revolutionised science in general and dynamical astronomy in particular. By extending Newtonian gravitation to more than two bodies ...
Chapter 2
Chapter 2

... finding out about the origin of the universe, exploring other planets, studying how space phenomena affect Earth, and investigating the potential for life elsewhere in the universe. Often, space program research yields new discoveries with applications elsewhere. Each year the federal government spe ...
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Astronomical unit

The astronomical unit (symbol au, AU or ua) is a unit of length, roughly the distance from the Earth to the Sun. However, that distance varies as the Earth orbits the Sun, from a maximum (aphelion) to a minimum (perihelion) and back again once a year. Originally conceived as the average of Earth's aphelion and perihelion, it is now defined as exactly 7011149597870700000♠149597870700 meters (about 150 million kilometers, or 93 million miles). The astronomical unit is used primarily as a convenient yardstick for measuring distances within the Solar System or around other stars. However, it is also a fundamental component in the definition of another unit of astronomical length, the parsec.
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