Beyond Our Solar System
... In this figure, your field of view widens by a factor of 100, and you can see an area 1 mile in diameter. – The arrow points to the scene shown in the preceding photo. – People, trees, and sidewalks have vanished, but now you can see a college campus and the surrounding streets and houses. – The di ...
... In this figure, your field of view widens by a factor of 100, and you can see an area 1 mile in diameter. – The arrow points to the scene shown in the preceding photo. – People, trees, and sidewalks have vanished, but now you can see a college campus and the surrounding streets and houses. – The di ...
22 circ motion gravitation fr File
... c. On the grid below, plot the quantities determined in part (b), label the axes, and draw the best-fit line to the data. You may use the blank rows above to record any values you may need to calculate. ...
... c. On the grid below, plot the quantities determined in part (b), label the axes, and draw the best-fit line to the data. You may use the blank rows above to record any values you may need to calculate. ...
Define the following terms in the space provided
... Gregorian year 365.2425 days Earth mass 5.9736× 1024 kilograms Sun mass 1.9891× 1030 kg = 332,980 × Earth mean Earth radius 6371 kilometers Sun radius 6.96265 × 105 km = 109 × Earth Sun luminosity 3.827× 1026 watts ...
... Gregorian year 365.2425 days Earth mass 5.9736× 1024 kilograms Sun mass 1.9891× 1030 kg = 332,980 × Earth mean Earth radius 6371 kilometers Sun radius 6.96265 × 105 km = 109 × Earth Sun luminosity 3.827× 1026 watts ...
Untitled
... 16. What is the name of the nebula from which our Solar System was formed? A. Pseudo nebula B. Solar nebula C. Orion nebula D. Crab nebula 18. The process in which a gas cools and its molecules stick together to form liquid particles is called A. Condensation. B. Depression. C. Evaporation. D. Subl ...
... 16. What is the name of the nebula from which our Solar System was formed? A. Pseudo nebula B. Solar nebula C. Orion nebula D. Crab nebula 18. The process in which a gas cools and its molecules stick together to form liquid particles is called A. Condensation. B. Depression. C. Evaporation. D. Subl ...
Space
... Another method to determine position and movement of celestial bodies (such as the Sun, Moon and planets) involves using the stars as the frame of reference instead of the Earth. Note which bright stars are around Venus and take note of the location of Venus relative to these bright stars. The next ...
... Another method to determine position and movement of celestial bodies (such as the Sun, Moon and planets) involves using the stars as the frame of reference instead of the Earth. Note which bright stars are around Venus and take note of the location of Venus relative to these bright stars. The next ...
The Sun
... tidal interaction between Earth and the Moon at a rate of 2 milliseconds/century. If this rate remains constant at the present value, how long will it take for one day on Earth to become 2 seconds longer than it is now: A: 1000 years B: 100,000 years C: 1 million years ...
... tidal interaction between Earth and the Moon at a rate of 2 milliseconds/century. If this rate remains constant at the present value, how long will it take for one day on Earth to become 2 seconds longer than it is now: A: 1000 years B: 100,000 years C: 1 million years ...
Notes on Precession in Astronomy
... Celestial Pole, appears to be stationary while other stars appear to rotate around it as the Earth turns daily on its axis [see Star Trail photograph.] However, the specific star that is the North Star varies over time because of the Earth's Precession. Precession was first discovered by the Greek a ...
... Celestial Pole, appears to be stationary while other stars appear to rotate around it as the Earth turns daily on its axis [see Star Trail photograph.] However, the specific star that is the North Star varies over time because of the Earth's Precession. Precession was first discovered by the Greek a ...
What is Epsilon Aurigae?
... -Eclipses last almost 2 years, and happen every 27.1 years (mid-eclipse ~5 Aug 2010) ...
... -Eclipses last almost 2 years, and happen every 27.1 years (mid-eclipse ~5 Aug 2010) ...
Announcements
... We can’t see below the horizon (we can’t see through the Earth!). So, we need to have telescopes in different locations, and we have to think about the timing of the Earth’s rotation when planning observations. The Earth is constantly rotating, so a telescope has to constantly move to follow a star ...
... We can’t see below the horizon (we can’t see through the Earth!). So, we need to have telescopes in different locations, and we have to think about the timing of the Earth’s rotation when planning observations. The Earth is constantly rotating, so a telescope has to constantly move to follow a star ...
Star Formation
... Stars do not move along the Main Sequence! Once they reach it they are in equilibrium and do not move until their fuel begins to run out ...
... Stars do not move along the Main Sequence! Once they reach it they are in equilibrium and do not move until their fuel begins to run out ...
BAS Visit to the Norman Lockyer Observatory, October 2015
... Mira A, a red giant belonging to the spectral type M7 IIIe, is an oscillating variable star that serves as a prototype for an entire class of variables, the Mira variables. There are between 6,000 to 7,000 known stars belonging to this group. They are all red giants whose surfaces oscillate in such ...
... Mira A, a red giant belonging to the spectral type M7 IIIe, is an oscillating variable star that serves as a prototype for an entire class of variables, the Mira variables. There are between 6,000 to 7,000 known stars belonging to this group. They are all red giants whose surfaces oscillate in such ...
Black Hole
... In which a shock wave blows off the outer layers of the star. The Supernova shines brighter than the entire galaxy for a short time. ...
... In which a shock wave blows off the outer layers of the star. The Supernova shines brighter than the entire galaxy for a short time. ...
Document
... Cold clouds can be tens of parsecs across. Thousands of times the mass of the Sun. Temperatures 10 – 100 K. In such a cloud: – If a star’s worth of matter should clump together in a denser region than the rest of the ...
... Cold clouds can be tens of parsecs across. Thousands of times the mass of the Sun. Temperatures 10 – 100 K. In such a cloud: – If a star’s worth of matter should clump together in a denser region than the rest of the ...
~Crowfoot
... 4)2 The stars in this “Jewel Box” of the southern hemisphere are a) young stars still in their nursery “open cluster.” b) not physically associated, but aligned along our line of sight. c) in the nearest globular cluster to Earth. 5)2 This world is Io a) 10 AU from the sun b) Io, one of the Galilean ...
... 4)2 The stars in this “Jewel Box” of the southern hemisphere are a) young stars still in their nursery “open cluster.” b) not physically associated, but aligned along our line of sight. c) in the nearest globular cluster to Earth. 5)2 This world is Io a) 10 AU from the sun b) Io, one of the Galilean ...
Today`s Powerpoint
... Radius of Sun = 7 x 105 km = 109 REarth = 1 RSun Luminosity of Sun = 4 x 1033 erg/s = 1 LSun (amount of energy put out each second in form of radiation, = 1025 40 W light bulbs) The Sun in X-rays over several years ...
... Radius of Sun = 7 x 105 km = 109 REarth = 1 RSun Luminosity of Sun = 4 x 1033 erg/s = 1 LSun (amount of energy put out each second in form of radiation, = 1025 40 W light bulbs) The Sun in X-rays over several years ...
Lecture 12: Energy Generation in Stars
... the neutrino flux predicted from standard models of the Sun. ...
... the neutrino flux predicted from standard models of the Sun. ...
Starbirth and Interstellar Matter
... A. Dark regions of fewer stars in the Milky Way. B. Stars that look redder than their spectral type. C. Bluish nebulas around hot stars. D. Hot hydrogen clouds glowing bright red. 2. Neutral hydrogen (HI) gas can be detected in interstellar space by its: A. emission lines at millimeter wavelengths. ...
... A. Dark regions of fewer stars in the Milky Way. B. Stars that look redder than their spectral type. C. Bluish nebulas around hot stars. D. Hot hydrogen clouds glowing bright red. 2. Neutral hydrogen (HI) gas can be detected in interstellar space by its: A. emission lines at millimeter wavelengths. ...
Daynightseasonsstars-1
... 1. What is changing at the same (annual) timescale that we are observing the changing zodiac? 2. Do the constellations appear to change positions in the night sky as Earth travels around our Sun throughout the year? 3. Are the constellations themselves moving? 4. What causes this apparent change in ...
... 1. What is changing at the same (annual) timescale that we are observing the changing zodiac? 2. Do the constellations appear to change positions in the night sky as Earth travels around our Sun throughout the year? 3. Are the constellations themselves moving? 4. What causes this apparent change in ...
File
... equal to the average distance from the center of Earth to the center of the Sun (149 599 000 km). They use 1AU to describe the distance from the Sun to Earth. So anything less means it is closer to the Sun and anything more, like 2 AU, means further away, or twice the distance from the Sun. - Light ...
... equal to the average distance from the center of Earth to the center of the Sun (149 599 000 km). They use 1AU to describe the distance from the Sun to Earth. So anything less means it is closer to the Sun and anything more, like 2 AU, means further away, or twice the distance from the Sun. - Light ...
Introduction - Willmann-Bell
... Argo Navis. What can we say about this sprawling and incredibly bountiful constellation? Dennis has deemed it our masterpiece, and truth be told, there was no shortage of celestial marvels to chronicle and illustrate. We think it safe to say (as much as modesty allows) that our review of the uncanny ...
... Argo Navis. What can we say about this sprawling and incredibly bountiful constellation? Dennis has deemed it our masterpiece, and truth be told, there was no shortage of celestial marvels to chronicle and illustrate. We think it safe to say (as much as modesty allows) that our review of the uncanny ...
Summary of Double Star Discoveries and JDSO Submissions
... double star with careful observation and recording of their observation notes. Here is the actual report excerpt: At 04:28:01.0 the magnitude 10.1 target star TYC 4677-00696-1 crisply faded but did NOT disappear. It remained at least as bright as magnitude 12.9 GSC 4677-806 located 1.7' northeast. T ...
... double star with careful observation and recording of their observation notes. Here is the actual report excerpt: At 04:28:01.0 the magnitude 10.1 target star TYC 4677-00696-1 crisply faded but did NOT disappear. It remained at least as bright as magnitude 12.9 GSC 4677-806 located 1.7' northeast. T ...
Night sky
... • Sidereal time is time kept relative to the stars (rather than the Sun). Local sidereal time = 0h when a star with RA = 0h crosses the meridian (like noon = Sun crossing the meridian). • RA uses time units to make it easy to compute the position of a star on the sky at any time of night. • A star t ...
... • Sidereal time is time kept relative to the stars (rather than the Sun). Local sidereal time = 0h when a star with RA = 0h crosses the meridian (like noon = Sun crossing the meridian). • RA uses time units to make it easy to compute the position of a star on the sky at any time of night. • A star t ...
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.