Monday, March 31 - Otterbein University
... • Venus is closer to Sun than Earth hotter surface • Not a lot of liquid water on surface initially • CO2 could not be absorbed by water, rocks because of higher temperatures • run-away Greenhouse effect: it’s hot, the greenhouse gases can’t be be stored away, it gets hotter … ...
... • Venus is closer to Sun than Earth hotter surface • Not a lot of liquid water on surface initially • CO2 could not be absorbed by water, rocks because of higher temperatures • run-away Greenhouse effect: it’s hot, the greenhouse gases can’t be be stored away, it gets hotter … ...
SPACE MATHEMATICS WORKSHEET 1
... The Earth rotates. The moon rotates. Have you ever wondered if the Sun rotates (i.e. does it spin on its axis?) The Sun does indeed rotate. Galileo noted this nearly 400 years ago when he observed sunspots. The apparent motion of sunspots can be used to determine the rotation speed of the Sun. As i ...
... The Earth rotates. The moon rotates. Have you ever wondered if the Sun rotates (i.e. does it spin on its axis?) The Sun does indeed rotate. Galileo noted this nearly 400 years ago when he observed sunspots. The apparent motion of sunspots can be used to determine the rotation speed of the Sun. As i ...
Stars - Robert M. Hazen
... Stars have a history – a beginning and an end 1. Stars (and planets) begin as clouds of dust and gas, called nebulae. 2. Stars radiate heat and light, which come from the energy of nuclear fusion reactions. 3. Planets form like stars, but they are too small to begin nuclear fusion reactions. ...
... Stars have a history – a beginning and an end 1. Stars (and planets) begin as clouds of dust and gas, called nebulae. 2. Stars radiate heat and light, which come from the energy of nuclear fusion reactions. 3. Planets form like stars, but they are too small to begin nuclear fusion reactions. ...
PowerPoint Presentation - Super Massive Black Holes
... stars known to exist in the universe; with a radius of only about 7 mi, they can have a mass of about two times that of the Sun. ...
... stars known to exist in the universe; with a radius of only about 7 mi, they can have a mass of about two times that of the Sun. ...
8-3-Star_Classification STUDENT
... able to know what the school looked like from a distance? Of course not. All you could do is look out the windows and get some view of part of the building. If you looked out enough windows you might get a general idea but you could never know for sure if you were right about all its features. ...
... able to know what the school looked like from a distance? Of course not. All you could do is look out the windows and get some view of part of the building. If you looked out enough windows you might get a general idea but you could never know for sure if you were right about all its features. ...
Astronomy Review HOW SCIENTISTS BELIEVE THE SOLAR
... the last stage in the life cycle of an average size star like the Sun. ...
... the last stage in the life cycle of an average size star like the Sun. ...
File - Etna FFA Agriculture
... On it, astronomers plot stars' color, temperature, luminosity, spectral type, and evolutionary stage. ...
... On it, astronomers plot stars' color, temperature, luminosity, spectral type, and evolutionary stage. ...
From Big bang to lives on planets
... • By making precise measurements of the frequency (wavelength) of absorption lines in the star's spectrum, it is possible to see this alternate blue- and red-shift effect. • The Doppler spectroscopy allows one to estimate the distance between planet and central star, and place a lower limit on the ...
... • By making precise measurements of the frequency (wavelength) of absorption lines in the star's spectrum, it is possible to see this alternate blue- and red-shift effect. • The Doppler spectroscopy allows one to estimate the distance between planet and central star, and place a lower limit on the ...
Mountain Skies February 8 2016 - Pisgah Astronomical Research
... The planets: Where have all the bright planets gone? We don’t see any of them in the evening skies nowadays. Due to their motions around the sun coupled with the fact that we are observing from a moving platform ourselves, all of the planets are now forming a line in the predawn skies. The brightest ...
... The planets: Where have all the bright planets gone? We don’t see any of them in the evening skies nowadays. Due to their motions around the sun coupled with the fact that we are observing from a moving platform ourselves, all of the planets are now forming a line in the predawn skies. The brightest ...
WHERE DO WE SEARCH FOR LIFE IN THE UNIVERSE?
... Consider Stellar Luminosity (not too high, not to low) Consider Stellar Mass (not to high, not too ...
... Consider Stellar Luminosity (not too high, not to low) Consider Stellar Mass (not to high, not too ...
Lecture 6: Properties of Stars The Constellations The Constellations
... o Top right has bright cool stars – Red ...
... o Top right has bright cool stars – Red ...
Meteors - Little Worksheets
... because they disappear fast. The correct name for a shooting star is meteor. Besides very large objects like stars, planets and moons, space has lots of little objects. These can be rocks in space left over from old planets. These objects can even be as small as a speck of dust. These objects are ca ...
... because they disappear fast. The correct name for a shooting star is meteor. Besides very large objects like stars, planets and moons, space has lots of little objects. These can be rocks in space left over from old planets. These objects can even be as small as a speck of dust. These objects are ca ...
Starry Lives, Starry Skies
... 4. Crisis when a star swells up into a red giant and loses some of its mass Betelgeuse Antares Aldebaran 5. Old Age lowmass stars produce a planetary nebula, and highmass stars make heavier elements using nuclear fusion The Ring Nebula (planetary nebula M57) The Helix Nebula (planetar ...
... 4. Crisis when a star swells up into a red giant and loses some of its mass Betelgeuse Antares Aldebaran 5. Old Age lowmass stars produce a planetary nebula, and highmass stars make heavier elements using nuclear fusion The Ring Nebula (planetary nebula M57) The Helix Nebula (planetar ...
Section 27.2
... 27.2 Temperature and luminosity H-R diagrams are useful because they help astronomers categorize stars into groups: Main sequence stars, like the Sun, are in a very stable part of their life cycle. White dwarfs are hot and dim and cannot be seen without a telescope. Red giants are cool and ...
... 27.2 Temperature and luminosity H-R diagrams are useful because they help astronomers categorize stars into groups: Main sequence stars, like the Sun, are in a very stable part of their life cycle. White dwarfs are hot and dim and cannot be seen without a telescope. Red giants are cool and ...
Spiral Elliptical Irregular - SMS 8th Grade Astronomy Unit
... We are __________________ million miles away from the sun This is called an Astronomical Unit (AU) (it would take a jet 17 years to travel this far!) Pluto is 39 AU from the sun…How many miles is that? _____________________ Anything farther than objects in our solar system has to be measured in ligh ...
... We are __________________ million miles away from the sun This is called an Astronomical Unit (AU) (it would take a jet 17 years to travel this far!) Pluto is 39 AU from the sun…How many miles is that? _____________________ Anything farther than objects in our solar system has to be measured in ligh ...
parallax and triangulation
... in front of your nose, focus on a distant object, and then alternately open and close each eye. – What happens? ...
... in front of your nose, focus on a distant object, and then alternately open and close each eye. – What happens? ...
Why do the stars shine?
... is U(initial)-U(final), but U(initial)=0 since the cloud radius is so much larger than the final star. • Assume the Sun has shown at constant luminosity for t years. Total energy radiated = L0x t=4x1033 ergs/sec x t. • (We know today that main sequence stars do not change luminosity over the life of ...
... is U(initial)-U(final), but U(initial)=0 since the cloud radius is so much larger than the final star. • Assume the Sun has shown at constant luminosity for t years. Total energy radiated = L0x t=4x1033 ergs/sec x t. • (We know today that main sequence stars do not change luminosity over the life of ...
Astronomy Toolkit
... • The star radiates light in all directions so that its emission is spread over a sphere • To find the intensity, I, of light from a star at the Earth (the intensity is the emission per unit area), divide the star’s luminosity by the area of a sphere, with the star at the centre and radius equal to ...
... • The star radiates light in all directions so that its emission is spread over a sphere • To find the intensity, I, of light from a star at the Earth (the intensity is the emission per unit area), divide the star’s luminosity by the area of a sphere, with the star at the centre and radius equal to ...
Ancient astronomy Part 8
... Many ancient North American tribes were hunter-gatherers who developed their astronomy in a context which differed from the mostly settled agricultural civilisations in Europe. They also commonly believe in a oneness with all life, all living things, including celestial objects, being inter-related. ...
... Many ancient North American tribes were hunter-gatherers who developed their astronomy in a context which differed from the mostly settled agricultural civilisations in Europe. They also commonly believe in a oneness with all life, all living things, including celestial objects, being inter-related. ...
IK Pegasi
IK Pegasi (or HR 8210) is a binary star system in the constellation Pegasus. It is just luminous enough to be seen with the unaided eye, at a distance of about 150 light years from the Solar System.The primary (IK Pegasi A) is an A-type main-sequence star that displays minor pulsations in luminosity. It is categorized as a Delta Scuti variable star and it has a periodic cycle of luminosity variation that repeats itself about 22.9 times per day. Its companion (IK Pegasi B) is a massive white dwarf—a star that has evolved past the main sequence and is no longer generating energy through nuclear fusion. They orbit each other every 21.7 days with an average separation of about 31 million kilometres, or 19 million miles, or 0.21 astronomical units (AU). This is smaller than the orbit of Mercury around the Sun.IK Pegasi B is the nearest known supernova progenitor candidate. When the primary begins to evolve into a red giant, it is expected to grow to a radius where the white dwarf can accrete matter from the expanded gaseous envelope. When the white dwarf approaches the Chandrasekhar limit of 1.44 solar masses (M☉), it may explode as a Type Ia supernova.