Supernovae – the biggest bangs since the Big Bang
... If you know the apparent brightness of a star and you know the intrinsic brightness of the star, you can determine how far away the star is. During the 1990's two groups of astronomers endeavored to discover Type Ia supernovae as far away as possible. They found some objects so far away that their ...
... If you know the apparent brightness of a star and you know the intrinsic brightness of the star, you can determine how far away the star is. During the 1990's two groups of astronomers endeavored to discover Type Ia supernovae as far away as possible. They found some objects so far away that their ...
Lab_Starry_Night
... Reset the date to today, and the time to 1:00 PM. Find the moon. You could turn off the daylight, under Sky. When you get the pointer near the moon it should change to an arrow. When it does, right click on it, then click on Info Window. D. What percentage of the moon is illuminated? E. What is the ...
... Reset the date to today, and the time to 1:00 PM. Find the moon. You could turn off the daylight, under Sky. When you get the pointer near the moon it should change to an arrow. When it does, right click on it, then click on Info Window. D. What percentage of the moon is illuminated? E. What is the ...
The Great Nebula in Orion
... planets are thought to form by the accretion of material swept up in the disk. Larger planetary bodies develop sufficient gravity to capture gas for atmospheres; smaller ones just form as rocky spheres. Over time, the mother cloud of gas and dust dissipates. Some of the material is incorporated into ...
... planets are thought to form by the accretion of material swept up in the disk. Larger planetary bodies develop sufficient gravity to capture gas for atmospheres; smaller ones just form as rocky spheres. Over time, the mother cloud of gas and dust dissipates. Some of the material is incorporated into ...
2010-02 LAAS Bulletin I - Los Angeles Astronomical Society
... until around 2016 or so. Which may be a blessing in disguise, considering the HUGE crowds at the Autry Museum and the Griffith satellite observatory in that year. To say that public interest, the size of the crowds, and the news interest were legendary is an understatement ! But this year’s oppositi ...
... until around 2016 or so. Which may be a blessing in disguise, considering the HUGE crowds at the Autry Museum and the Griffith satellite observatory in that year. To say that public interest, the size of the crowds, and the news interest were legendary is an understatement ! But this year’s oppositi ...
Sun - El Camino College
... Most of the light we see from the Sun is emitted because the Sun resembles a blackbody. That means the Sun shines light because it is hot. There are two important properties of blackbodies. One (Stefan’s law) is that hotter things shine more light. (Mathematically, the power emitted per area depends ...
... Most of the light we see from the Sun is emitted because the Sun resembles a blackbody. That means the Sun shines light because it is hot. There are two important properties of blackbodies. One (Stefan’s law) is that hotter things shine more light. (Mathematically, the power emitted per area depends ...
our brightest star - El Camino College
... Most of the light we see from the Sun is emitted because the Sun resembles a blackbody. That means the Sun shines light because it is hot. There are two important properties of blackbodies. One (Stefan’s law) is that hotter things shine more light. (Mathematically, the power emitted per area depends ...
... Most of the light we see from the Sun is emitted because the Sun resembles a blackbody. That means the Sun shines light because it is hot. There are two important properties of blackbodies. One (Stefan’s law) is that hotter things shine more light. (Mathematically, the power emitted per area depends ...
The Celestial Sphere Friday, September 22nd
... Moon is surrounded by a ring of Sun. (3) Partial: Observer is in penumbra, to one side of umbra; Moon takes ‘bite’ out of Sun. ...
... Moon is surrounded by a ring of Sun. (3) Partial: Observer is in penumbra, to one side of umbra; Moon takes ‘bite’ out of Sun. ...
ASTRONOMY 161
... Moon is surrounded by a ring of Sun. (3) Partial: Observer is in penumbra, to one side of umbra; Moon takes ‘bite’ out of Sun. ...
... Moon is surrounded by a ring of Sun. (3) Partial: Observer is in penumbra, to one side of umbra; Moon takes ‘bite’ out of Sun. ...
Stellar Physics - Craigie High School
... Sun revolved around the Earth because that is what it seems to do! Similarly most people were sure that the Earth was flat until there was definite proof from sailors who had ventured round the world and not fallen off! It may prove useful therefore to give a brief historical introduction so that we ...
... Sun revolved around the Earth because that is what it seems to do! Similarly most people were sure that the Earth was flat until there was definite proof from sailors who had ventured round the world and not fallen off! It may prove useful therefore to give a brief historical introduction so that we ...
The Formation of Stars and Solar Systems
... hydrogen atoms. • The atoms are so far apart that, if an atom were an average- size person, each person would be separated by about 465 million miles, which is the distance between our Sun and Jupiter. • These atoms are moving very fast because they are extremely hot, baked by ultraviolet radiation ...
... hydrogen atoms. • The atoms are so far apart that, if an atom were an average- size person, each person would be separated by about 465 million miles, which is the distance between our Sun and Jupiter. • These atoms are moving very fast because they are extremely hot, baked by ultraviolet radiation ...
The Earth - for physicists - University of California, Riverside
... oversimplification. Indeed, angular momentum plays a major role. As such a cloud collapses gravitationally, it should form a spinning “accretion disk”. When the centre of this disk became dense enough for its pressure to hold it up, our Sun was born as a “protostar”. This phase lasted a scant 100 00 ...
... oversimplification. Indeed, angular momentum plays a major role. As such a cloud collapses gravitationally, it should form a spinning “accretion disk”. When the centre of this disk became dense enough for its pressure to hold it up, our Sun was born as a “protostar”. This phase lasted a scant 100 00 ...
Creating the earth atmosphere in other planets
... The Solar System formed 4.568 billion years ago from the gravitational collapse of a region within a large molecular cloud. Due to their higher boiling points, only metals and silicates could exist in solid form in the warm inner Solar System close to the Sun, and these would eventually form the roc ...
... The Solar System formed 4.568 billion years ago from the gravitational collapse of a region within a large molecular cloud. Due to their higher boiling points, only metals and silicates could exist in solid form in the warm inner Solar System close to the Sun, and these would eventually form the roc ...
How Big is the Universe
... Gravity is a force of attraction. Anything with mass has gravity. The strength of the ...
... Gravity is a force of attraction. Anything with mass has gravity. The strength of the ...
... out powerful jets of gas. These jets originate as dust and gas move in towards the star and are deflected by the magnetic fields of the star and the surrounding disk. The star formation process is very dynamic, as shown dramatically by recent time-lapse images of young stars located only about 450 l ...
The Measurement of the Astronomical Unit
... We need to derive the most accurate possible minimum positions of the NaD lines vs. the H2O telluric line in order to measure what will be a small Doppler shift. Open your images (spectra) in MaximDL. Open a line information box and draw a horizontal box (~ 10pixels wide) across the middle of your s ...
... We need to derive the most accurate possible minimum positions of the NaD lines vs. the H2O telluric line in order to measure what will be a small Doppler shift. Open your images (spectra) in MaximDL. Open a line information box and draw a horizontal box (~ 10pixels wide) across the middle of your s ...
Peer-reviewed Article PDF - e
... along with R presents also the revolution periods and the velocities of rotation of the objects in the Solar System but these data are not consistent. It should also be noted that the data on the parameters of planetary orbits are given without errors, which is likely to be connected with not very h ...
... along with R presents also the revolution periods and the velocities of rotation of the objects in the Solar System but these data are not consistent. It should also be noted that the data on the parameters of planetary orbits are given without errors, which is likely to be connected with not very h ...
Venus Transit and the Astronomical Unit
... Since A and B differ 9 in latitude and the circumference of Earth is given by 2r, the distance AB is given by AB = (2r/360) × 9 where r is the radius of Earth. Similarly, since the distance CD is 1/5 the solar diameter and the Sun subtends an angle of 30' or 0.5 at Earth, the angle is 0.1, wh ...
... Since A and B differ 9 in latitude and the circumference of Earth is given by 2r, the distance AB is given by AB = (2r/360) × 9 where r is the radius of Earth. Similarly, since the distance CD is 1/5 the solar diameter and the Sun subtends an angle of 30' or 0.5 at Earth, the angle is 0.1, wh ...
Name Physics 130 Astronomy Exam 2 August 2, 2004 Multiple Choice
... c.) protostars cannot form with masses less than 0.08 solar mass. d.) protostars of less than 0.08 solar masses are not massive enough to contract. 30. _____ An object which is too massive to be a planet but not massive enough to be a star is called a.) a red dwarf b.) a white dwarf c.) a T Tauri st ...
... c.) protostars cannot form with masses less than 0.08 solar mass. d.) protostars of less than 0.08 solar masses are not massive enough to contract. 30. _____ An object which is too massive to be a planet but not massive enough to be a star is called a.) a red dwarf b.) a white dwarf c.) a T Tauri st ...
Grade 9 Botony: plant nutrition
... The sun is a star. It is our closest star, which is why it seems so different from the tiny stars we see at night. The sun is one of the stars in the Milky Way galaxy. Like other stars, the sun is a ball of burning gas made up of different layers. It has a core in the middle which is extreme ...
... The sun is a star. It is our closest star, which is why it seems so different from the tiny stars we see at night. The sun is one of the stars in the Milky Way galaxy. Like other stars, the sun is a ball of burning gas made up of different layers. It has a core in the middle which is extreme ...
Astronomers Find Extremely Large Planet
... AU = 93 million miles, the distance from Earth to the Sun.). The diameter of our solar system, as defined by the most distant planets, is approximately 60 AU. But the disk of our solar system extends beyond the planets to several hundred or even one-thousand Astronomical Units, as traced by the come ...
... AU = 93 million miles, the distance from Earth to the Sun.). The diameter of our solar system, as defined by the most distant planets, is approximately 60 AU. But the disk of our solar system extends beyond the planets to several hundred or even one-thousand Astronomical Units, as traced by the come ...
The Life And Times Of A Star
... The hydrogen fusion is happening very, very fast now, so a LOT of waste helium is getting produced and dumped onto the dead helium core. The dead helium core is now very big and massive, but still isn’t producing energy using nuclear fusion, so it continues to collapse under its own weight. ...
... The hydrogen fusion is happening very, very fast now, so a LOT of waste helium is getting produced and dumped onto the dead helium core. The dead helium core is now very big and massive, but still isn’t producing energy using nuclear fusion, so it continues to collapse under its own weight. ...
unit2oursoloarsystem part2
... Jupiter has at least 59 other, much smaller asteroid-like moons. Four of these (below) are closer to Jupiter than Io. ...
... Jupiter has at least 59 other, much smaller asteroid-like moons. Four of these (below) are closer to Jupiter than Io. ...
ExamView - es S1 dept final.tst
... 18. Kepler’s first law states that planets orbit the sun in paths called a. ellipses. c. epicycles. b. circles. d. periods. 19. Young Earth formed a core, mantle, and crust in a process called a. layering. c. dispersion. b. settling. d. differentiation. 20. Early fresh water oceans became salty when ...
... 18. Kepler’s first law states that planets orbit the sun in paths called a. ellipses. c. epicycles. b. circles. d. periods. 19. Young Earth formed a core, mantle, and crust in a process called a. layering. c. dispersion. b. settling. d. differentiation. 20. Early fresh water oceans became salty when ...
Formation and evolution of the Solar System
The formation of the Solar System began 4.6 billion years ago with the gravitational collapse of a small part of a giant molecular cloud. Most of the collapsing mass collected in the center, forming the Sun, while the rest flattened into a protoplanetary disk out of which the planets, moons, asteroids, and other small Solar System bodies formed.This widely accepted model, known as the nebular hypothesis, was first developed in the 18th century by Emanuel Swedenborg, Immanuel Kant, and Pierre-Simon Laplace. Its subsequent development has interwoven a variety of scientific disciplines including astronomy, physics, geology, and planetary science. Since the dawn of the space age in the 1950s and the discovery of extrasolar planets in the 1990s, the model has been both challenged and refined to account for new observations.The Solar System has evolved considerably since its initial formation. Many moons have formed from circling discs of gas and dust around their parent planets, while other moons are thought to have formed independently and later been captured by their planets. Still others, such as the Moon, may be the result of giant collisions. Collisions between bodies have occurred continually up to the present day and have been central to the evolution of the Solar System. The positions of the planets often shifted due to gravitational interactions. This planetary migration is now thought to have been responsible for much of the Solar System's early evolution.In roughly 5 billion years, the Sun will cool and expand outward many times its current diameter (becoming a red giant), before casting off its outer layers as a planetary nebula and leaving behind a stellar remnant known as a white dwarf. In the far distant future, the gravity of passing stars will gradually reduce the Sun's retinue of planets. Some planets will be destroyed, others ejected into interstellar space. Ultimately, over the course of tens of billions of years, it is likely that the Sun will be left with none of the original bodies in orbit around it.