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draft - Standards Aligned System
draft - Standards Aligned System

... The universe is composed of a variety of different objects that are organized into systems each of which develops according to accepted physical processes and laws. The universe is composed of a variety of different objects that are organized into systems each of which develops according to accepted ...
Planets and Moons - Fraser Heights Chess Club
Planets and Moons - Fraser Heights Chess Club

... • Comet orbits are elliptical. It brings them close to the sun and takes them far away. • Short period comets orbit the Sun every 20 years or less. Long period comets orbit the Sun every 200 years or longer. Those comets with orbits in between are called Halley-type comets. • We see a comet's coma a ...
Earth and Space Science - Standards Aligned System
Earth and Space Science - Standards Aligned System

... formation and early history (e.g. – origin of oceanic and atmospheric components) from evidence acquired from the study of ancient Earth materials and objects in our solar system. ...
Dec - National Capital Astronomers
Dec - National Capital Astronomers

... When a power (x; actually, zoom factor) is given in the notes, the event can probably be recorded directly with a camcorder of that power with no telescope needed. ...
Physical Setting/Earth Science
Physical Setting/Earth Science

... (1) air contracts as it sinks → air warms to the dewpoint → water evaporates (2) air expands as it rises → air warms to the dewpoint → water vapor condenses (3) air contracts as it sinks → air cools to the dewpoint → water evaporates (4) air expands as it rises → air cools to the dewpoint → water va ...
1 pracovni list HR diagram I EN
1 pracovni list HR diagram I EN

... 3 Preparation of data for construction of H–R diagram Open the prepared CSV file in an Excel spreadsheet. To construct a H–R diagram you need to know the star’s luminosity (or absolute magnitude) and effective temperature (or spectral type or colour index). From the catalogue it is possible to obta ...
The Celestial Sphere
The Celestial Sphere

... First Point of Aries (Υ) The point on the celestial sphere where the ecliptic cuts the equinoctial when the sun just passes the equinoctial from south to north, also known as the vernal equinox position of the sun, which occurs on 21st of March. First Point of Libra The point on the celestial sph ...
How fast do stars form out of the ISM?
How fast do stars form out of the ISM?

... How fast do stars form out of the ISM? Let's consider the gravitational collapse of a cloud into globules and further into a proto-star. The molecular clouds are very dark because they are cold (~10-40 K) and dense (~1000 grains per centimeter cubed). Gravity is an attractive force between any two m ...
ODU booklet 2 Teachers booklet Sept 2014 (7.5MB Word)
ODU booklet 2 Teachers booklet Sept 2014 (7.5MB Word)

... Observations 1 and 2 are possible, but observation 3 is not because you cannot exceed the speed of light. ...
Comets, Meteors, and Asteroids
Comets, Meteors, and Asteroids

PowerPoint
PowerPoint

astronomy
astronomy

... distances, and the forces that tie them together. Although astronomy began as simply a means of telling time and location, it soon developed into a full-fledged area of study, characterized by patient observation and detailed record-keeping. As early as 2500 BC in what is now England, work began on ...
May - RASC Hamilton
May - RASC Hamilton

“Here Comes the Sun” How the new
“Here Comes the Sun” How the new

... point Sungenis makes several elementary errors. For example he is wrong about the strength of the gravitational attraction of various celestial bodies at the Earth, and he confuses two different physical concepts – the centre of mass of a system of bodies and a point in space with zero gravity. A po ...
Document
Document

... Men and women have looked up at the sky and wondered about the things they see up there for as long as humans have lived on our Earth. Long ago, the Sun and Moon were mysterious objects that could be seen in the day and night. But the planets and stars were even more mysterious probably because they ...
Chapter10 (with interactive links)
Chapter10 (with interactive links)

... Distance: Definitions and Conversion Factors Some useful definitions and conversion factors:  1 arcminute = 1/60 of a degree.  1 arcsecond = 1/60 of an arcminute = 1/3600 of a degree.  Parsec: distance at which the parallax is equal to one arcsecond.  1 parsec = 3.26 light-years. ...
Solar System
Solar System

... 2-3 ES1A The shape of the moon goes through one entire set of phases during the course of its 28-day cycle 2-3 ES1B Patterns of stars (constellations) always have the same shape 4-5SYSA Systems contain subsystems and are themselves parts of larger systems 4-5 SYSB A System can do things that none of ...
Downloaded - WordPress.com
Downloaded - WordPress.com

... Planet (noun): 1. A nonluminous celestial body larger than an asteroid or comet, illuminated by light from a star, such as the sun, around which it revolves. In the solar system there are nine known planets: Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, Neptune, and Pluto. 2. One of the seve ...
Galaxies - Indiana University Astronomy
Galaxies - Indiana University Astronomy

... At least two supernovae have been detected in recent years in the nearby Whirlpool Galaxy, Messier 51. M51 is located at a distance of about 31 million light years (about 10 megaparsecs) in the direction of the constellation Canes Venatici. Stars can explode as supernovae in different ways, and the ...
"Stars" pdf file
"Stars" pdf file

... shaped celestial bodies. However, because gravity is a weak force, we only see its effects when masses are very large. This is why stars have very large masses. The sun’s diameter is 1,4 million km long, 100 times more than the earth’s. But the sun is an average star. Star diameters range from a few ...
black holes activity
black holes activity

... ture is plotted against its absolute magnitude. From such a diagram, other information about a star's properties and life cycle can be determined. A simplified H-R diagram appears in your textbook IFigure 21.6, page 3821. In this laboratory, you will construct an H-R diagram using data on the 20 sta ...
introduction to heliophysics
introduction to heliophysics

... (the space permeated by the solar wind), which is also known as heliophysics. Over time, solar physics has evolved over three distinctly different phases using progressively more sophisticated observing tools. The first phase of naked–eye observations that dates back over several thousands of years ...
Which Constellation is Which?
Which Constellation is Which?

... shapes. They are the constellations. They are named after people, animals, and things that were important to them You can use a star chart that shows where stars appear in the sky. As the night passes, these shapes seem to move through the sky. It’s Earth that’s moving, not the Sun and stars. It’s r ...
abstract - Maths, NUS
abstract - Maths, NUS

... of tithis because one Tithi will be repeated and one will be omitted. Adhika month In the Indian lunisolar calendar the intercalary months are not added in a mechanical manner. The Indian astronomers devised a method which uses the true positions of the sun and moon to add the intercalary months. Wh ...
Slide 1
Slide 1

... Summary of Chapter 9 • Venus is never too far from Sun and is the brightest object in the sky (after the Sun and Moon) ...
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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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