The Inverse Square Law and Surface Area
... Stars of Known Power Output • There are several classes of stars with known power output. • Stars which have the same surface temperature ( and spectral characteristics) as the sun all have the same power output • We can readily calculate the power output of nearby stars and classify their power ou ...
... Stars of Known Power Output • There are several classes of stars with known power output. • Stars which have the same surface temperature ( and spectral characteristics) as the sun all have the same power output • We can readily calculate the power output of nearby stars and classify their power ou ...
What`s Up - April 2016
... Second-brightest among Leo’s stars is Denebola (‘tail of the lion’), well to the east (right, for an observer facing north) of the ‘question mark’. According to Egyptian legend, the sun was in Leo immediately after the Creation, near Denebola. On a more scientific note, Denebola is about 36 light ye ...
... Second-brightest among Leo’s stars is Denebola (‘tail of the lion’), well to the east (right, for an observer facing north) of the ‘question mark’. According to Egyptian legend, the sun was in Leo immediately after the Creation, near Denebola. On a more scientific note, Denebola is about 36 light ye ...
Chapter 26
... brightness of sample stars 2. Used to estimate the sizes of the stars and their distances, and to infer how stars change over time 3. Main sequence- diagonal line on the diagram where 90% of stars are found 4. Supergiants- very bright, very large stars 5. Giants- large and bright 6. White Dwarf- sma ...
... brightness of sample stars 2. Used to estimate the sizes of the stars and their distances, and to infer how stars change over time 3. Main sequence- diagonal line on the diagram where 90% of stars are found 4. Supergiants- very bright, very large stars 5. Giants- large and bright 6. White Dwarf- sma ...
The Life of a Star
... The atomic structure of carbon is too strong to be further compressed The star's outer layers are then shed as a diffuse cloud called a planetary nebula. o Eventually, only about 20% of the star's initial mass remains The star then cools and shrinks until it is only a few thousand miles in dia ...
... The atomic structure of carbon is too strong to be further compressed The star's outer layers are then shed as a diffuse cloud called a planetary nebula. o Eventually, only about 20% of the star's initial mass remains The star then cools and shrinks until it is only a few thousand miles in dia ...
How many stars are visible to the naked eye in the night sky?
... been selected to become astronauts. Currently there are two active Canadian Astronauts. They are: LieutenantColonel Jeremy Hansen and Dr. David SaintJacques. ...
... been selected to become astronauts. Currently there are two active Canadian Astronauts. They are: LieutenantColonel Jeremy Hansen and Dr. David SaintJacques. ...
Document
... constellations, one divides them into Summer, Autumn, Winter and Spring constellations • Some constellations are ALWAYS visible – the circumpolar ones that are close enough to the celestial pole ...
... constellations, one divides them into Summer, Autumn, Winter and Spring constellations • Some constellations are ALWAYS visible – the circumpolar ones that are close enough to the celestial pole ...
September Globular Clusters - Salisbury Plain Observing Group
... seek some of these celestial long term denizens this autumn, and get out under the night sky. ...
... seek some of these celestial long term denizens this autumn, and get out under the night sky. ...
Formation of a Solar System • • • The Solar Nebula Theory 1. Nebula
... What is the estimated age of the universe? How does the Big Bang Theory explain an expanding universe? How could you use all the students in your class to model the expanding universe? What force is responsible for bringing together particles in space? ...
... What is the estimated age of the universe? How does the Big Bang Theory explain an expanding universe? How could you use all the students in your class to model the expanding universe? What force is responsible for bringing together particles in space? ...
Math Guide
... A couple questions on every astronomy test will involve some of the math below. Mastery of it will pay you dividends at OSU and for the rest of your life! Astronomical Magnitude Scale (ASTR 1023 only) The magnitude scale uses a range of small numbers to rank stars and other astronomical objects from ...
... A couple questions on every astronomy test will involve some of the math below. Mastery of it will pay you dividends at OSU and for the rest of your life! Astronomical Magnitude Scale (ASTR 1023 only) The magnitude scale uses a range of small numbers to rank stars and other astronomical objects from ...
SR Stellar Properties
... 8. If Rigel and Betelgeuse were the same size, explain why Rigel would appear brighter. __________________________________________________________________________________________ __________________________________________________________________________________________ 9. If star Large and star Smal ...
... 8. If Rigel and Betelgeuse were the same size, explain why Rigel would appear brighter. __________________________________________________________________________________________ __________________________________________________________________________________________ 9. If star Large and star Smal ...
HW #5 Answers (Due 9/29)
... surface temperature and the radius of a star. L = σT4(4πR2) As the average kinetic energy (temperature) of the electrons in a star increases there is more energy available to produce radiation through collisions. So higher temperature means more energy/second being released as radiation. Higher Lumi ...
... surface temperature and the radius of a star. L = σT4(4πR2) As the average kinetic energy (temperature) of the electrons in a star increases there is more energy available to produce radiation through collisions. So higher temperature means more energy/second being released as radiation. Higher Lumi ...
Back to basics: naked-eye astronomical observation
... only do they become familiar objects, enabling some degree of direction finding, but also the sight of the whole sphere of the Moon at a New Moon (due to Earthshine) can give a sense of scale and even the feeling of gravity holding this large ‘rock’ in orbit. A study of the Moon’s surface in binocul ...
... only do they become familiar objects, enabling some degree of direction finding, but also the sight of the whole sphere of the Moon at a New Moon (due to Earthshine) can give a sense of scale and even the feeling of gravity holding this large ‘rock’ in orbit. A study of the Moon’s surface in binocul ...
etlife_douglas_ewart_short
... One of Jupiter’s moons, Europa, is another candidate The icy crust of the moon is covered in ‘cracks’ due to the tides, and beneath the crust we think friction has melted the ice, resulting in a ...
... One of Jupiter’s moons, Europa, is another candidate The icy crust of the moon is covered in ‘cracks’ due to the tides, and beneath the crust we think friction has melted the ice, resulting in a ...
Study Guide - Experience Astronomy
... Absolute Magnitude -‐ how bright a star really is if all stars were the same distance from us A.M. -‐ Ante Meridiem, meaning before the middle of the day Apparent Magnitude -‐ how bright a star appears in our sky The Arctic Circle -‐ the latitude ...
... Absolute Magnitude -‐ how bright a star really is if all stars were the same distance from us A.M. -‐ Ante Meridiem, meaning before the middle of the day Apparent Magnitude -‐ how bright a star appears in our sky The Arctic Circle -‐ the latitude ...
Lesson 6 - Magnitudes of Stars
... These are often referred to as apparent magnitudes because the value depends on Distance from Earth Luminosity ...
... These are often referred to as apparent magnitudes because the value depends on Distance from Earth Luminosity ...
Cygnus (constellation)
Cygnus /ˈsɪɡnəs/ is a northern constellation lying on the plane of the Milky Way, deriving its name from the Latinized Greek word for swan. The swan is one of the most recognizable constellations of the northern summer and autumn, it features a prominent asterism known as the Northern Cross (in contrast to the Southern Cross). Cygnus was among the 48 constellations listed by the 2nd century astronomer Ptolemy, and it remains one of the 88 modern constellations.Cygnus contains Deneb, one of the brightest stars in the night sky and one corner of the Summer Triangle, as well as some notable X-ray sources and the giant stellar association of Cygnus OB2. One of the stars of this association, NML Cygni, is one of the largest stars currently known. The constellation is also home to Cygnus X-1, a distant X-ray binary containing a supergiant and unseen massive companion that was the first object widely held to be a black hole. Many star systems in Cygnus have known planets as a result of the Kepler Mission observing one patch of the sky, the patch is the area around Cygnus. In addition, most of the eastern part of Cygnus is dominated by the Hercules–Corona Borealis Great Wall, a giant galaxy filament that is the largest known structure in the observable universe; covering most of the northern sky.