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Observations of gravitational microlensing events with OSIRIS
Observations of gravitational microlensing events with OSIRIS

The solar system
The solar system

... larger clumps. This process yields solid cores roughly 10 x the mass of Earth. • Their powerful gravity sucks in the gases from the disk to create a ...
Heliocentric or Geocentric
Heliocentric or Geocentric

... “Mass” changes relative to velocity, and Time “Dilates” with increasing velocity, essentially slowing down. Proof of this latter claim was measured in Orbital “Solar” Time versus Atomic Time (Cesium decay), but as we will see, Orbital Time is measured in an acceleration free condition and Atomic Tim ...
The Sun`s Crowning Glory - Max-Planck
The Sun`s Crowning Glory - Max-Planck

... lines like a teaspoon draws honey, twisting them into thick bundles as it does so. The hot gas of electrically charged particles now flows along these field lines emanating from the surface, and its light makes the lines visible – similar to iron filings lying on a sheet of paper above a magnet and ...
One World, One Sky Planetarium Show Field Trip - Science in Pre-K
One World, One Sky Planetarium Show Field Trip - Science in Pre-K

... look directly at the sun! It is so bright it can burn your eyes.  Can you ever see the moon in the day time? Look for the moon. If you find it, notice what shape it is. Can you draw the shape of the moon?  Discuss: If the sun is a star, why does it appear different from other stars in the sky? (We ...
The winter triangle - NRC Publications Archive
The winter triangle - NRC Publications Archive

... The brightest star in our skies other than the Sun is Sirius, visible in the south-west in the evenings at this time of year. There is no mistaking it. It flashes like a blue-white diamond. Of course the star itself shines a steady bluish white; our turbulent atmosphere provides the light show. The ...
Astronomy Club
Astronomy Club

... Pluto. These orbits have an angle of 7 &17 degrees with respect to the earth's orbit respectively. But comets emerging out of the ‘Ourt Cloud’ have disordered orbit. Comets are mainly of two types. Those of the first type take more than 200 years for revolution around the sun and others takes less t ...
natsciGR
natsciGR

... equivalent to an accelerated frame of reference in the absence of gravitational effects. ...
OBSERVATIONS (1)
OBSERVATIONS (1)

... falls faster. This means that its momentum must be proportionally greater to ensure that it keeps missing the Sun. That is, it moves faster. Because it’s orbital path is shorter and its orbital velocity faster it completes one revolution around the sun in a distinctly shorter time than Earth – about ...
Lesson 1 | Earth`s Motion
Lesson 1 | Earth`s Motion

... model of the universe holds that everything in the universe—the Sun, Moon, planets, and stars—orbits Earth. The geocentric model was the system that Aristotle (384–322 B.C.) and Ptolemy (165– ~85 B.C.) taught. Because observations were made by the unaided eye, the scientists of ancient Greece made t ...
DO IT YOURSELF SIMPLE TEMPLATE FORMAT
DO IT YOURSELF SIMPLE TEMPLATE FORMAT

... what you know about each one. This activity will look specifically at planets, which are relatively large objects circling the Sun. You will run a model and be able to change a planet's mass, velocity and position, so that you can see what effect these factors have on its orbit. Before you start the ...
PHYSICS 1500 - ASTRONOMY TOTAL
PHYSICS 1500 - ASTRONOMY TOTAL

Solutions3
Solutions3

... Problem 1: The star Mizar in the Big Dipper was the first binary system to be observed (Benedetto Castelli asked Galileo to observe it in 1617, presumably to confirm his observations of this double star)–though not the first where orbital motion was observed. The parallax angle to Mizar is 4.2 × 10− ...
Chapter 16 The Sun
Chapter 16 The Sun

... Solar constant— amount of Sun's energy incident on a square meter of the Earth per second—is 1400 W/m2. That is not much more than a the glare from a very strong light bulb a foot or so away, but the Sun delivers that energy flux to every square meter of the Earth, and does it from 93 million miles ...
Slide 1
Slide 1

the rest of the univ..
the rest of the univ..

... http://imagine.gsfc.nasa.gov/docs/ask_astro/answers/970710c.html That's an interesting question. Light travels at 300,000 kilometers per second or 186,000 miles per second. The time it takes for light from stars to reach us is the distance to the star divided by this speed. The nearest star to us is ...
Coherence of starlight The nearest star (other than
Coherence of starlight The nearest star (other than

... Coherence of starlight The nearest star (other than our sun) to us is Proxima Centauri at a distance of 30 trillion kilometers, and it has an angular diameter of 2 millionth of a degree or 7 milliarseconds (1 milliarcsecond is 1 thousandth of an arcsecond which is one sixtieth of an arcminute which ...
Assignment 1 - utoledo.edu
Assignment 1 - utoledo.edu

... of] asks you for advice (as his astronomy expert). He likes sleeping during the day, and being awake at night,  and has taken to going out into an open field and staring at the stars for hours, while slowly chanting the  names of the 92 stable elements. But he gets very easily dizzy from watching th ...
Planet Jupiter - Rocky View Schools
Planet Jupiter - Rocky View Schools

... Their alignment constantly changes on a nightly basis as the moons rapidly circle around Jupiter and dance from one side to the other in a matter of hours. Io is closest to Jupiter and is the most volcanically active body in the solar system with numerous vents ejecting molten sulphur. The thin atmo ...
Problem Set 1 - Cambridge University Press
Problem Set 1 - Cambridge University Press

How Wide Is Lightning
How Wide Is Lightning

... in being the farthest planet from the sun. So . . . when they're trading places. . . will Neptune and Pluto ever collide?" K: Brionna, Pluto is usually the outermost planet. But Pluto comes closer to the sun than Neptune for about 20 years out of every one of its orbits around the sun -- and, by the ...
Black Holes - Chabot College
Black Holes - Chabot College

... spacetime about an object with mass.  This means that even light is affected by gravity. ...
Homework #2
Homework #2

... star has an apparent magnitude of m = 6.0, what is its absolute magnitude? Is it more or less luminous than the sun? (Ignore bolometric corrections.) 3) a) Given below is the approximate period-luminosity relation for Type I Cepheid Variables. If a Type I Cepheid variable star is observed (in anothe ...
class17
class17

... A. It would be only 1/3 as bright. B. It would be only 1/6 as bright. C. It would be only 1/9 as bright. D. It would be three times brighter. ...
Chapter 1 - Chabot College
Chapter 1 - Chabot College

... A. the solar system contains only one star but the galaxy contains many billions. B. the solar system contains planets, but the galaxy does not. C. other galaxies are rare, but other solar systems are common. D. other solar systems are rare, but other galaxies are common. ...
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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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