Star Formation
... Stars of Other Masses • The time required for an interstellar cloud to become a main sequence star depends strongly on its mass • The most massive O stars reach the 10 million Kelvin needed to start fusion in a million years (1/50 time taken by sun) • An M-type star less massive than our sun takes ...
... Stars of Other Masses • The time required for an interstellar cloud to become a main sequence star depends strongly on its mass • The most massive O stars reach the 10 million Kelvin needed to start fusion in a million years (1/50 time taken by sun) • An M-type star less massive than our sun takes ...
Ch. 1 - University of Tennessee Department of Physics and Astronomy
... Naked eye view of bright stars In Orion ...
... Naked eye view of bright stars In Orion ...
Observing the Solar System
... continue in a straight line or a stationary object to remain in place. The more mass an object has, the more inertia it has. • The force of gravity attracts all objects towards each other. No one is for sure how gravity works or why it is present. • As the planets are in orbit around the sun the sun ...
... continue in a straight line or a stationary object to remain in place. The more mass an object has, the more inertia it has. • The force of gravity attracts all objects towards each other. No one is for sure how gravity works or why it is present. • As the planets are in orbit around the sun the sun ...
OCR Physics A Refer to the Physics A datasheet for data, formulae
... © Oxford University Press 2016 http://www.oxfordsecondary.co.uk/acknowledgements This resource sheet may have been changed from the original ...
... © Oxford University Press 2016 http://www.oxfordsecondary.co.uk/acknowledgements This resource sheet may have been changed from the original ...
Down Under from North Florida
... to its large southern declination of 44.7 degrees). In fact, one typically hears this cluster is only visible to southern observers. (The cluster’s name, reminiscent of a star name, results from this object being misidentified as a star in ancient times.) Not so. This brightest of all observable glo ...
... to its large southern declination of 44.7 degrees). In fact, one typically hears this cluster is only visible to southern observers. (The cluster’s name, reminiscent of a star name, results from this object being misidentified as a star in ancient times.) Not so. This brightest of all observable glo ...
Supplemental Resources - Morehead Planetarium and Science
... 7c. Identify at least one red star, one blue star, and one yellow star (other than the Sun). Explain the meaning of these colors. Look up into the sky and you’ll see the stars twinkling in different colors. Some are dull and red, while others are white and others look bright blue. So how do you get ...
... 7c. Identify at least one red star, one blue star, and one yellow star (other than the Sun). Explain the meaning of these colors. Look up into the sky and you’ll see the stars twinkling in different colors. Some are dull and red, while others are white and others look bright blue. So how do you get ...
Binary Star - Armagh Observatory
... Nebulae often form star-forming regions, such as in the Eagle Nebula. This nebula is depicted in one of NASA's most famous images, the "Pillars of Creation". In these regions the formations of gas, dust, and other materials "clump" together to form larger masses, which attract further matter, and ...
... Nebulae often form star-forming regions, such as in the Eagle Nebula. This nebula is depicted in one of NASA's most famous images, the "Pillars of Creation". In these regions the formations of gas, dust, and other materials "clump" together to form larger masses, which attract further matter, and ...
c - Fsusd
... 25) According to Hubble’s law, the farther away a galaxy is, ______. a) the slower it is moving away from Earth b) the sooner it will stop moving c) the faster it is moving away from Earth ...
... 25) According to Hubble’s law, the farther away a galaxy is, ______. a) the slower it is moving away from Earth b) the sooner it will stop moving c) the faster it is moving away from Earth ...
astr100_finalexam
... [4] The Big Bang theory of Cosmology is accepted by nearly all astronomers. Please list, and describe, three major observations that support this theory. [5] Use your textbook and the internet to research the issues involved with human space travel within, and ouside of, the solar system. List some ...
... [4] The Big Bang theory of Cosmology is accepted by nearly all astronomers. Please list, and describe, three major observations that support this theory. [5] Use your textbook and the internet to research the issues involved with human space travel within, and ouside of, the solar system. List some ...
Watching Galaxies Form Near the Beginning of Time
... Expansion of the Universe • Features in the spectra of galaxies are essentially always observed at wavelengths longer than the corresponding features in laboratories on Earth (the “redshift”). • The cosmological redshift is not exactly a Doppler shift, but is linked to the expansion of space as lig ...
... Expansion of the Universe • Features in the spectra of galaxies are essentially always observed at wavelengths longer than the corresponding features in laboratories on Earth (the “redshift”). • The cosmological redshift is not exactly a Doppler shift, but is linked to the expansion of space as lig ...
lecture2
... Near the poles, the sun rises and sets every half year, and circumpolar constellations such as Ursa Major, never set. What other cycles do you know? ...
... Near the poles, the sun rises and sets every half year, and circumpolar constellations such as Ursa Major, never set. What other cycles do you know? ...
Stellar Evolution - Hays High Indians
... “This next image is one of the most spectacular views of 1987A yet acquired by the HST. The single large bright light is a star beyond the supernova environs. Around the central supernova is a single ring but associated with the expansion of expelled gases are also a pair of rings further away that ...
... “This next image is one of the most spectacular views of 1987A yet acquired by the HST. The single large bright light is a star beyond the supernova environs. Around the central supernova is a single ring but associated with the expansion of expelled gases are also a pair of rings further away that ...
Stellar Evolution – Test Review Answers
... An absorption line spectrum is a series of dark spectral lines among the colors of the continuous spectrum. The dark lines in the absorption spectrum of a particular gas occur at exactly the same wavelengths as the bright lines in the emission spectrum of that same gas. 7. Why do astronomers see an ...
... An absorption line spectrum is a series of dark spectral lines among the colors of the continuous spectrum. The dark lines in the absorption spectrum of a particular gas occur at exactly the same wavelengths as the bright lines in the emission spectrum of that same gas. 7. Why do astronomers see an ...
Motions of the Sky—2 Sep Hipparchus measures the moon’s distance~200BC
... Moon is offset by 1/4 diameter of sun ...
... Moon is offset by 1/4 diameter of sun ...
Document
... Notice that the X axis is spaced unevenly, and the number of Kelvins (degrees) between each line is not constant. This because it is a logarithmic scale. For example: each line between 2,000 and 3,000 represents 100 degrees; but each line between 6,000 and 7,000 represents 200 degrees; and differe ...
... Notice that the X axis is spaced unevenly, and the number of Kelvins (degrees) between each line is not constant. This because it is a logarithmic scale. For example: each line between 2,000 and 3,000 represents 100 degrees; but each line between 6,000 and 7,000 represents 200 degrees; and differe ...
Stars - staff.harrisonburg.k12.va
... of a star in the sky when viewed from two different positions in earth’s revolution. – The closer a star is, the larger its parallax, or apparent movement. The farther away a star is, the smaller its parallax. ...
... of a star in the sky when viewed from two different positions in earth’s revolution. – The closer a star is, the larger its parallax, or apparent movement. The farther away a star is, the smaller its parallax. ...
Astronomy Webquest _2 STARS
... make stars appear brighter on Earth. One factor is the distance between Earth and the star. Even though our sun is a fairly average star, because it is so close, it appears brighter on Earth than even the brightest objects in the universe. The brightness of a star as seen from earth is called its ap ...
... make stars appear brighter on Earth. One factor is the distance between Earth and the star. Even though our sun is a fairly average star, because it is so close, it appears brighter on Earth than even the brightest objects in the universe. The brightness of a star as seen from earth is called its ap ...
Ursa Major
Ursa Major /ˈɜrsə ˈmeɪdʒər/ (also known as the Great Bear and Charles' Wain) is a constellation in the northern celestial hemisphere. One of the 48 constellations listed by Ptolemy (second century AD), it remains one of the 88 modern constellations. It can be visible throughout the year in most of the northern hemisphere. Its name, Latin for ""the greater (or larger) she-bear"", stands as a reference to and in direct contrast with Ursa Minor, ""the smaller she-bear"", with which it is frequently associated in mythology and amateur astronomy. The constellation's most recognizable asterism, a group of seven relatively bright stars commonly known as the ""Big Dipper"", ""the Wagon"" or ""the Plough"" (among others), both mimicks the shape of the lesser bear (the ""Little Dipper"") and is commonly used as a navigational pointer towards the current northern pole star, Polaris in Ursa Minor. The Big Dipper and the constellation as a whole have mythological significance in numerous world cultures, usually as a symbol of the north.The third largest constellation in the sky, Ursa Major is home to many deep-sky objects including seven Messier objects, four other NGC objects and I Zwicky 18, the youngest known galaxy in the visible universe.