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Our Solar System
Our Solar System

... same size as Earth, and it is rocky. The similarities end there. Venus can become very hot, reaching about 460°C (860°F). It is even hotter than Mercury because Venus’s thick ...
Retrograde Motion pre
Retrograde Motion pre

Everything from Velocity, Seasons, Tides
Everything from Velocity, Seasons, Tides

... Orbital velocity is the speed at which a planetary body moves in  its orbit around another body.  If orbits were circular, this velocity would be constant.   However, from discussion of Kepler’s Laws, we know that  planetary bodies orbit the sun (or their planet) in elliptical paths.  Therefore, whe ...
light energy
light energy

... The “missing” black lines in the spectra of the Sun match with the known spectra of Hydrogen but not with Mercury – so the Sun contains Hydrogen! ...
PDF 630 kB - Prague Relativistic Astrophysics
PDF 630 kB - Prague Relativistic Astrophysics

... %. Unfortunately, there is valid across all scales of distances.  observed on the Sun’s surface. Credit: A. Kosovichev. ...
Properties of Main Sequence Stars
Properties of Main Sequence Stars

Our Very Own Star: The Sun - Center for Math and Science Education
Our Very Own Star: The Sun - Center for Math and Science Education

... The Sun is important to us because we need its warmth and light. Scientists also study the Sun to learn more about the Earth’s weather and climate. NASA helps us to learn more about the Sun by sending satellites into space to study the space weather. Perhaps one day you can work for NASA, too! ...
Stars_and_Galaxies
Stars_and_Galaxies

... 18 million degrees. Nuclear fusion turns hydrogen to helium and the fire ignites. T or F. Gravity is always at work, trying to crunch the star down. Stellar age is determined by the size of the star. Smaller stars burn cool and dim. Medium stars, like the Sun, will burn steadily for some 10 billion ...
Lecture #4 - History of Astronomy - Ptolemy to Kepler
Lecture #4 - History of Astronomy - Ptolemy to Kepler

Can you write numbers in scientific notation
Can you write numbers in scientific notation

... How is energy produced in the Sun’s core? How does the Sun’s magnetic field influence each type of solar activity discussed in class (sunspots, plages, prominences, solar flares, coronal mass ejections)? Why is it important for us to be able to predict such events? What causes the Sun to leave the M ...
Badge Day - GBT
Badge Day - GBT

... 4. Cosmic Clues 1.Analyze the spectrum for three stars. What are the 2 most prominent differences between the spectra? Which star is hottest? ...
Solstice - East Hanover Township School District
Solstice - East Hanover Township School District

Barycenter of Solar System Moon orbits
Barycenter of Solar System Moon orbits

... • Actually they orbit the “center of mass” – Called the “barycenter” of the solar system ...
Professor Jonathan Fortney TA Kate Dallas Thursday, February 11
Professor Jonathan Fortney TA Kate Dallas Thursday, February 11

... 48) Which of the following best describes why the smaller terrestrial worlds have cooler interiors than the larger ones? A) They had more volcanic eruptions in the past, which released their internal heat. B) They have relatively more surface area compared to their volumes. C) The smaller ones are f ...
ASTR220 Collisions in Space
ASTR220 Collisions in Space

... Fastest known have periods of 1.5-3 ms (rotate 300-600 times per second!). ...
chapter2 - Empyrean Quest Publishers
chapter2 - Empyrean Quest Publishers

... Are the same stars visible every night of the year? What is so special about the North Star? Are the same stars visible from any location on Earth? What causes the seasons? Why are they opposite in the northern and southern hemispheres? Has the same star always been the North Star? Can we use the ri ...
OGT TYPE QUESTIONS
OGT TYPE QUESTIONS

TRANSIT
TRANSIT

Answer Key
Answer Key

... Directions: Listed below are twenty (20) multiple-choice questions based on the material covered by the lectures thus far. Choose the correct response from those listed, along with at least a one (1) sentence justification for your answer. Alternate justification techniques include math calculations ...
Motions of the Celestial Sphere
Motions of the Celestial Sphere

Planet Profile for Uranus
Planet Profile for Uranus

... -It has as many as 39 or more moons, however only sixteen of them have been named and agreed upon. -It has a faint ring. -Jupiter’s power of gravity is so strong it grabs on to objects that come too close. -Atmospheric composition is 90% Hydrogen and 10% Helium. - The Red Spot is a hurricane. It is ...
Apr 2016 - Bays Mountain Park
Apr 2016 - Bays Mountain Park

... Spring and with that, usually rainy weather is with us for a little while. Many of us will be unable to enjoy the beauty of the clear night sky. Maybe mother-nature will be kind to us though and grace us with a few clear nights. We are also now in the dreaded Daylight-Saving Time. I do not like this ...
Name - MIT
Name - MIT

... A) More distant planets orbit the Sun at slower speeds. B) The orbit of each planet about the Sun is an ellipse with the Sun at one focus. C) The force of attraction between any two objects decreases with the square of the distance between their centers. D) As a planet moves around its orbit, it swe ...
Events - Temecula Valley Astronomers
Events - Temecula Valley Astronomers

... the Almagest. It was produced sometime in the mid-100s AD. Ptolemy applied a system of brightnesses that originated with Hipparchus. The brightest stars were said to be 1 st magnitude. The faintest stars were said to be 6th magnitude. This is the ancient origin of the system we still use in modern a ...
1705 chart front
1705 chart front

... bright star in Virgo the Maiden. Neither of these constellations has any other bright stars. Even under dark skies away from city lights, it’s hard to imagine these mythological figures just by connecting the dots. Not too far from Spica is the bright planet Jupiter. If you have binoculars, you may ...
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Timeline of astronomy

Timeline of astronomy around 2300 BC.
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