LESSON 8: STARS
... stars simply because it is so close to us. Other stars are located so far away that their distances from the Earth can be very difficult to grasp. A helpful analogy for understanding this concept is to imagine the Earth as a grain of sand with the Sun situated a metre away, leaving the nearest star ...
... stars simply because it is so close to us. Other stars are located so far away that their distances from the Earth can be very difficult to grasp. A helpful analogy for understanding this concept is to imagine the Earth as a grain of sand with the Sun situated a metre away, leaving the nearest star ...
Lecture 11
... – Hot gas in accretion disks can emit X-rays – The accretion disk can dump material which may become hot and dense enough to under nuclear fusion. • What is a white dwarf supernova – White dwarf accretes gas from companion until it exceeds 1.4 solar masses – which undergoes collapse and destruct ...
... – Hot gas in accretion disks can emit X-rays – The accretion disk can dump material which may become hot and dense enough to under nuclear fusion. • What is a white dwarf supernova – White dwarf accretes gas from companion until it exceeds 1.4 solar masses – which undergoes collapse and destruct ...
Eagle Nebula - Amazing Space
... trigger the nuclear fusion reactions that make stars, including our Sun, shine. Photoevaporation in the Eagle Nebula has cut newly forming stars off from the cloud feeding them. While some of the EGGs are large enough to eventually become stars, others may never make it. ...
... trigger the nuclear fusion reactions that make stars, including our Sun, shine. Photoevaporation in the Eagle Nebula has cut newly forming stars off from the cloud feeding them. While some of the EGGs are large enough to eventually become stars, others may never make it. ...
Astronomy DR Packet
... 13. The Hubble telescope is the most well-known ___________ telescope. This type of telescope avoids interference and can form extremely clear images, since it is in _______________ above the Earth’s _______________________. Observations With Telescopes 14. The Greek word for planet, means “wanderer ...
... 13. The Hubble telescope is the most well-known ___________ telescope. This type of telescope avoids interference and can form extremely clear images, since it is in _______________ above the Earth’s _______________________. Observations With Telescopes 14. The Greek word for planet, means “wanderer ...
BASIC PROPERTIES of STARS - 2
... (1) What is approximate time to get the return signal from Venus when it is at its closest to Earth? C = 3 x 105 km/s (A 150; B 200; C 300; D 400 seconds) (2) What is the approximate time to get a return signal from Venus when Venus is at its most distant position? (A 850; B 1700; C 2550; D 3400 sec ...
... (1) What is approximate time to get the return signal from Venus when it is at its closest to Earth? C = 3 x 105 km/s (A 150; B 200; C 300; D 400 seconds) (2) What is the approximate time to get a return signal from Venus when Venus is at its most distant position? (A 850; B 1700; C 2550; D 3400 sec ...
Constellation Catalog
... helped defeat the Titans, Zeus kept the eagle after his victory) In Greek mythology, the eagle was sent to find the most beautiful youth In Indian tradition the three stars that create the straight tail are admired as the footprints of the god Vishnu ...
... helped defeat the Titans, Zeus kept the eagle after his victory) In Greek mythology, the eagle was sent to find the most beautiful youth In Indian tradition the three stars that create the straight tail are admired as the footprints of the god Vishnu ...
Class Project Physics 1010-042, Physics 1010
... The photo below is of the centaurus/southern cross region of the milky way. This is not visible in our sky as our latitude on the Earth is too far north. These are starfields seen generally in the southern hemisphere and some of the tropical latitudes of the northern hemisphere. Centaurus is a large ...
... The photo below is of the centaurus/southern cross region of the milky way. This is not visible in our sky as our latitude on the Earth is too far north. These are starfields seen generally in the southern hemisphere and some of the tropical latitudes of the northern hemisphere. Centaurus is a large ...
Visual Double Star Measurements with Equatorial - Alt
... A protractor-pointer (Figure 3) can be built by gluing or cementing a plastic protractor to a piece of foam board and fitting it around the eyepiece. A pin is then attached to the red light switch on the eyepiece to act as a pointer. In the protractor-pointer method, position angles are determined b ...
... A protractor-pointer (Figure 3) can be built by gluing or cementing a plastic protractor to a piece of foam board and fitting it around the eyepiece. A pin is then attached to the red light switch on the eyepiece to act as a pointer. In the protractor-pointer method, position angles are determined b ...
Homework #8 1. Problem 10.21 2. The Origin of the Main Sequence
... a) Use hydrostatic equilibrium to obtain a relationship between the (central) temperature, mass, and radius of the star. b) Use the radiative diffusion equation to derive a relationship between the mass and luminosity of the star. Stop and think. This result was derived without using any information ...
... a) Use hydrostatic equilibrium to obtain a relationship between the (central) temperature, mass, and radius of the star. b) Use the radiative diffusion equation to derive a relationship between the mass and luminosity of the star. Stop and think. This result was derived without using any information ...
mass of star
... B: Blown to bits by a nearby supernova. C: Stripped away from the Sun by an encounter with another star in 1015 years. D: Blown to bits by silly humans with atomic bombs. ...
... B: Blown to bits by a nearby supernova. C: Stripped away from the Sun by an encounter with another star in 1015 years. D: Blown to bits by silly humans with atomic bombs. ...
Three Media Reports by Carole Gallagher
... sustaining life similar to life on Earth. Such a planet would have to be large enough to have an atmosphere but small enough to have continents and oceans. It would need to orbit an energy-giving star (like our sun) at a suitable distance, so as to be warmed by the star without becoming too hot. The ...
... sustaining life similar to life on Earth. Such a planet would have to be large enough to have an atmosphere but small enough to have continents and oceans. It would need to orbit an energy-giving star (like our sun) at a suitable distance, so as to be warmed by the star without becoming too hot. The ...
Chapter 1 Section Misconception Truth Distances in the Universe
... farther from the Sun at various times of the year. The seasons are caused by the tilt of the Earth's axis (which we see as a variation in the declination of the Sun). The Sun is actually closest to Earth in the northern hemisphere's wintertime, proving that the distance effect is not the major one ...
... farther from the Sun at various times of the year. The seasons are caused by the tilt of the Earth's axis (which we see as a variation in the declination of the Sun). The Sun is actually closest to Earth in the northern hemisphere's wintertime, proving that the distance effect is not the major one ...
Powerpoint for today
... B: Blown to bits by a nearby supernova. C: Stripped away from the Sun by an encounter with another star in 1015 years. D: Blown to bits by silly humans with atomic bombs. ...
... B: Blown to bits by a nearby supernova. C: Stripped away from the Sun by an encounter with another star in 1015 years. D: Blown to bits by silly humans with atomic bombs. ...
This Book of Hours calculation is a possible
... number divides into 72 four times. The recurrence of the pentacle with angles of 36 degrees (2 x 18) at the points seems to be significant here. It will shown later that this five pointed star shape is indicative as of the position of the four Royal stars the fifth being a place where God resides. T ...
... number divides into 72 four times. The recurrence of the pentacle with angles of 36 degrees (2 x 18) at the points seems to be significant here. It will shown later that this five pointed star shape is indicative as of the position of the four Royal stars the fifth being a place where God resides. T ...
Word
... compare the space between the galaxies to their sizes we find that, on the average, they are separated by about 10 to 100 times of their diameter. Hence, there would be a large number of collisions. Large telescopes reveal hundreds of galaxies that appear to be colliding with other galaxies. One of ...
... compare the space between the galaxies to their sizes we find that, on the average, they are separated by about 10 to 100 times of their diameter. Hence, there would be a large number of collisions. Large telescopes reveal hundreds of galaxies that appear to be colliding with other galaxies. One of ...
AST101 Lecture 16 Extra Solar Planets
... How Far are Planets from Stars? By parallax, 1 AU = 1“ at 1 pc •1 pc (parsec) = 3.26 light years •1“ (arcsec) = 1/3600 degree As seen from α Centauri (4.3 LY): •Earth is 0.75 arcsec from Sol •Jupiter is 4 arcsec from Sol Can we see this? Yes, but it takes special techniques, and is not easy. ...
... How Far are Planets from Stars? By parallax, 1 AU = 1“ at 1 pc •1 pc (parsec) = 3.26 light years •1“ (arcsec) = 1/3600 degree As seen from α Centauri (4.3 LY): •Earth is 0.75 arcsec from Sol •Jupiter is 4 arcsec from Sol Can we see this? Yes, but it takes special techniques, and is not easy. ...
Stars: Their Life and Afterlife
... main-sequence lifetime they have a hydrogen-fusing core with a temperature of a few million degrees and a surface temperature of ~5-10 thousand degrees. How does the heat from the core propagate outward to the surface? The inner part of the interior, outside the core, is still hot enough that the ga ...
... main-sequence lifetime they have a hydrogen-fusing core with a temperature of a few million degrees and a surface temperature of ~5-10 thousand degrees. How does the heat from the core propagate outward to the surface? The inner part of the interior, outside the core, is still hot enough that the ga ...
How Telescopes Changed our Universe
... Big Question 7: Are there other planets? In our own solar system, telescopes found planets our eyes could not see. Are there other planets outside of our solar system? ...
... Big Question 7: Are there other planets? In our own solar system, telescopes found planets our eyes could not see. Are there other planets outside of our solar system? ...
Document
... • RR Lyrae variables used like this to find our place in the Galaxy. • Distances that can be reached depend on the intrinsic brightness of the standard candle – and the limiting magnitude of your telescope ...
... • RR Lyrae variables used like this to find our place in the Galaxy. • Distances that can be reached depend on the intrinsic brightness of the standard candle – and the limiting magnitude of your telescope ...
The Cosmic Perspective Star Stuff
... a) They recycle material from stars that have died. b) They create new elements and blow them out into space so that new generations of stars can be made from them. c) They destroy elements, letting each new generation of stars begin anew. © 2014 Pearson Education, Inc. ...
... a) They recycle material from stars that have died. b) They create new elements and blow them out into space so that new generations of stars can be made from them. c) They destroy elements, letting each new generation of stars begin anew. © 2014 Pearson Education, Inc. ...
Chapter 2 Discovering the Universe for Yourself What does the
... • Earth s axis points in the same direction (to Polaris) all year round, so its orientation relative to the Sun changes as Earth orbits the Sun. • Summer occurs in your hemisphere when sunlight hits it more directly; winter occurs when the sunlight is less direct. • AXIS TILT is the key to the se ...
... • Earth s axis points in the same direction (to Polaris) all year round, so its orientation relative to the Sun changes as Earth orbits the Sun. • Summer occurs in your hemisphere when sunlight hits it more directly; winter occurs when the sunlight is less direct. • AXIS TILT is the key to the se ...
HST Key Project to Measure the Hubble Constant from
... Outer layer puffs, becomes more transparent, energy escapes, underlying pressure drops, star contracts ...
... Outer layer puffs, becomes more transparent, energy escapes, underlying pressure drops, star contracts ...
Corvus (constellation)
Corvus is a small constellation in the Southern Celestial Hemisphere. Its name comes from the Latin word ""raven"" or ""crow"". It includes only 11 stars with brighter than 4.02 magnitudes. One of the 48 constellations listed by the 2nd-century astronomer Ptolemy, it remains one of the 88 modern constellations. The four brightest stars, Gamma, Delta, Epsilon, and Beta Corvi from a distinctive quadrilateral in the night sky. The young star Eta Corvi has been found to have two debris disks.