E3 – Stellar distances
... • At distances greater than Mpc, neither parallax nor spectroscopic parallax can be relied upon to measure the distance to a star. • When we observe another galaxy, all of the stars in that galaxy are approximately the same distance away from the earth. What we really need is a light source of known ...
... • At distances greater than Mpc, neither parallax nor spectroscopic parallax can be relied upon to measure the distance to a star. • When we observe another galaxy, all of the stars in that galaxy are approximately the same distance away from the earth. What we really need is a light source of known ...
Nov 2017 - What`s Out Tonight?
... tens of thousands stars held together by their mutual gravity. All Galilean moons and cloud bands, easily visible at 50x. It is posof the globulars that can be seen in the sky are part of our Milky sible to see the moons with well-focused binoculars. Saturn is Way Galaxy, and there are about 200 of ...
... tens of thousands stars held together by their mutual gravity. All Galilean moons and cloud bands, easily visible at 50x. It is posof the globulars that can be seen in the sky are part of our Milky sible to see the moons with well-focused binoculars. Saturn is Way Galaxy, and there are about 200 of ...
Stars and Galaxies
... 1. when this occurs the core contracts in upon itself and becomes very hot causing the outer layers of the star to expand away from the core. 2. now this radiation and heat starts fusion in the star’s outer layers causing even greater expansion 3. as the expansion continues the star becomes a red-gi ...
... 1. when this occurs the core contracts in upon itself and becomes very hot causing the outer layers of the star to expand away from the core. 2. now this radiation and heat starts fusion in the star’s outer layers causing even greater expansion 3. as the expansion continues the star becomes a red-gi ...
Stars - Madison County Schools
... • Begin their lives as clouds of dust and gas called nebula • Gravity may cause the nebula to contract • Matter in the gas cloud will begin to condense into a dense region called a protostar • The protostar continues to condense, it heats up. Eventually, it reaches a critical mass and nuclear fusion ...
... • Begin their lives as clouds of dust and gas called nebula • Gravity may cause the nebula to contract • Matter in the gas cloud will begin to condense into a dense region called a protostar • The protostar continues to condense, it heats up. Eventually, it reaches a critical mass and nuclear fusion ...
Astronomy Unit Test Review Sheet
... 2. What is an optical telescope? What is the difference between a reflecting and a refracting telescope? What other types of telescopes do scientists use to gather information? Optical telescopes are used to see visible light from far away. Refracting uses a glass lens and a reflecting telescope use ...
... 2. What is an optical telescope? What is the difference between a reflecting and a refracting telescope? What other types of telescopes do scientists use to gather information? Optical telescopes are used to see visible light from far away. Refracting uses a glass lens and a reflecting telescope use ...
Life cycle of a star
... between 1.4 and 3 times as much mass as the Sun, but are compressed into a ball with a radius of about 10 km. A thimbleful of a neutron star would weigh more than 100 million tons on earth ...
... between 1.4 and 3 times as much mass as the Sun, but are compressed into a ball with a radius of about 10 km. A thimbleful of a neutron star would weigh more than 100 million tons on earth ...
CONSTELLATION URSA MAJOR, THE GREAT
... Ursa Major (also known as the Great Bear) is a constellation in the northern celestial hemisphere. It was one of the 48 constellations listed by Ptolemy (second century AD), and remains one of the 88 modern constellations. It can be visible throughout the year in most of the northern hemisphere. Its ...
... Ursa Major (also known as the Great Bear) is a constellation in the northern celestial hemisphere. It was one of the 48 constellations listed by Ptolemy (second century AD), and remains one of the 88 modern constellations. It can be visible throughout the year in most of the northern hemisphere. Its ...
Astronomy Test Review
... Reviewing Content 1. c) light years 2. d) magnitude 3. b) stellar parallax 4. d) blue 5. c) main sequence 6. c) red giant 7. a) black hole ...
... Reviewing Content 1. c) light years 2. d) magnitude 3. b) stellar parallax 4. d) blue 5. c) main sequence 6. c) red giant 7. a) black hole ...
No Slide Title
... Here is an example of a Red Supergiant This is Betelgeuse, the first star after the sun whose surface was imaged in photographs ...
... Here is an example of a Red Supergiant This is Betelgeuse, the first star after the sun whose surface was imaged in photographs ...
Stars and the Main Sequence
... temperature dependent bouyancy Stars with M<1.2 M0 have radiative core and convective outer layer (like the sun): ...
... temperature dependent bouyancy Stars with M<1.2 M0 have radiative core and convective outer layer (like the sun): ...
The Sun - rosedalegrade9astronomy
... – Is our nearest star. It is 5 billion years old. – It will last another 5 billion years – Has the mass of more than 300 000 Earths – So big that gravity forces everything together so tight that there are nuclear reactions and a great amount of heat. -Hydrogen atoms are squashed together to form hel ...
... – Is our nearest star. It is 5 billion years old. – It will last another 5 billion years – Has the mass of more than 300 000 Earths – So big that gravity forces everything together so tight that there are nuclear reactions and a great amount of heat. -Hydrogen atoms are squashed together to form hel ...
Characteristics of Stars
... 4. In relation to the brightness of other stars how bright is the Sun? What are the three characteristics astronomers use to classify stars? 5. What size is the Sun compared to other stars? What are very large stars called? How far would the supergiant Betelgeuse reach if it were to replace our Sun? ...
... 4. In relation to the brightness of other stars how bright is the Sun? What are the three characteristics astronomers use to classify stars? 5. What size is the Sun compared to other stars? What are very large stars called? How far would the supergiant Betelgeuse reach if it were to replace our Sun? ...
Astro 1050 HW #2
... 6. T/F: Although the values of the constants may differ, Newton showed that Kepler’s laws apply equally well to the moons orbiting Jupiter as they do Jupiter orbiting the Sun. 7. Two planets orbit a star that has the same mass as the Sun. Planet A orbits at a distance of 2 AU while Planet B orbits a ...
... 6. T/F: Although the values of the constants may differ, Newton showed that Kepler’s laws apply equally well to the moons orbiting Jupiter as they do Jupiter orbiting the Sun. 7. Two planets orbit a star that has the same mass as the Sun. Planet A orbits at a distance of 2 AU while Planet B orbits a ...
The Sky
... • The stars are fixed relative to one another. • The constellations you see today are the ones that ancient peoples saw long ago. • Over thousands to millions of years even these constellations will change as stars move through the galaxy. • On time scales of weeks to years, however, five ``stars’’ ...
... • The stars are fixed relative to one another. • The constellations you see today are the ones that ancient peoples saw long ago. • Over thousands to millions of years even these constellations will change as stars move through the galaxy. • On time scales of weeks to years, however, five ``stars’’ ...
(AU): Average distance from Earth to Sun
... Questions 1. What are the 2 major pieces of evidence to support the Big Bang Theory? 2. If spectral lines are red-shifted, is the object moving toward or away from Earth? ...
... Questions 1. What are the 2 major pieces of evidence to support the Big Bang Theory? 2. If spectral lines are red-shifted, is the object moving toward or away from Earth? ...
Aquarius (constellation)
Aquarius is a constellation of the zodiac, situated between Capricornus and Pisces. Its name is Latin for ""water-carrier"" or ""cup-carrier"", and its symbol is 20px (Unicode ♒), a representation of water.Aquarius is one of the oldest of the recognized constellations along the zodiac (the sun's apparent path). It was one of the 48 constellations listed by the 2nd century AD astronomer Ptolemy, and it remains one of the 88 modern constellations. It is found in a region often called the Sea due to its profusion of constellations with watery associations such as Cetus the whale, Pisces the fish, and Eridanus the river.