Stars - Denbigh Baptist Christian School
... Our Sun has diameter of 865,000 miles (1,400,000 km) This size makes it a medium-sized yellow star. Giant stars – 10’s – 100’s of times larger and 100’s times more luminous. Supergiants – 100’s times larger and 1000’s times more luminous. Next closest star to Earth is Proxima Centauri. This is 270,0 ...
... Our Sun has diameter of 865,000 miles (1,400,000 km) This size makes it a medium-sized yellow star. Giant stars – 10’s – 100’s of times larger and 100’s times more luminous. Supergiants – 100’s times larger and 1000’s times more luminous. Next closest star to Earth is Proxima Centauri. This is 270,0 ...
Lecture 7 Stars and Galaxies and Nebula, (Oh My!) Feb 18 2003
... Witch Head Nebula (Near Rigel in Orion) ...
... Witch Head Nebula (Near Rigel in Orion) ...
OUSNMAY06 - The George Abell Observatory
... the borders of Canes Venatici and Ursa Major. NGC4395 (11.0) sg. Bright core with a low surface brightness circular halo. NGC4449 (10.5) ir. Appears almost rectangular making it an unusual object to view. NGC4485 (12.5) ir and NGC4490 (10.1) sg. Interacting pair of galaxies. NGC4631 (9.7) sg and NG4 ...
... the borders of Canes Venatici and Ursa Major. NGC4395 (11.0) sg. Bright core with a low surface brightness circular halo. NGC4449 (10.5) ir. Appears almost rectangular making it an unusual object to view. NGC4485 (12.5) ir and NGC4490 (10.1) sg. Interacting pair of galaxies. NGC4631 (9.7) sg and NG4 ...
PowerPoint - Chandra X
... million degree Celsius gas with a length about a hundred times that of our solar system is shown in the image. The image is brighter to the upper right -- the side of the nebula nearest the Earth -- where there is less obscuring material to block the X-ray emission. NGC 7027 is the remains of a sun- ...
... million degree Celsius gas with a length about a hundred times that of our solar system is shown in the image. The image is brighter to the upper right -- the side of the nebula nearest the Earth -- where there is less obscuring material to block the X-ray emission. NGC 7027 is the remains of a sun- ...
How do stars form?
... and the H-R Diagram • What happens when a star exhausts its nuclear fuel? • Depends on size • Star core collapses on itself, but heats the outer envelope. • Result may be: White dwarf, white dwarf with planetary nebula, red giant, neutron star or black hole. ...
... and the H-R Diagram • What happens when a star exhausts its nuclear fuel? • Depends on size • Star core collapses on itself, but heats the outer envelope. • Result may be: White dwarf, white dwarf with planetary nebula, red giant, neutron star or black hole. ...
Deep Space and Solar System
... • A spectroscope is a scientific instrument that breaks up the light from a star into its component colors in order to identify which elements are present in that star • A spectral line is a bright or dark line found in the spectrum of some radiant sources • A dark line spectrum from a star – Is li ...
... • A spectroscope is a scientific instrument that breaks up the light from a star into its component colors in order to identify which elements are present in that star • A spectral line is a bright or dark line found in the spectrum of some radiant sources • A dark line spectrum from a star – Is li ...
Name: Notes – #45 The Diverse Sizes of Stars 1. A Hertzsprung
... 1. A Hertzsprung-Russell diagram plots the _____________ on the y-axis and the __________________ on the x-axis. 2. The Sun has a luminosity of ____ solar luminosity and a temperature of _______ deg K. 3. Hotter star emit much _______ energy than cooler stars per emitting area. The amount of energy ...
... 1. A Hertzsprung-Russell diagram plots the _____________ on the y-axis and the __________________ on the x-axis. 2. The Sun has a luminosity of ____ solar luminosity and a temperature of _______ deg K. 3. Hotter star emit much _______ energy than cooler stars per emitting area. The amount of energy ...
The Stars
... Plotting the Properties of Stars Two astronomers created a special kind of graph that compares star brightness with their ________________ ________________. When this was plotted it showed that these properties are related. For example, as the temperature of a star __________________, its colour bec ...
... Plotting the Properties of Stars Two astronomers created a special kind of graph that compares star brightness with their ________________ ________________. When this was plotted it showed that these properties are related. For example, as the temperature of a star __________________, its colour bec ...
Chapter 1 Starts and Galaxies
... Binary star- member of a double star system Constellation- group of stars that form a pattern Nova- star that suddenly increases in brightness in just a few hours or days Nebula- massive cloud of dust and gas between the stars Galaxy- huge collection of stars Spiral Galaxy- galaxy that is shaped lik ...
... Binary star- member of a double star system Constellation- group of stars that form a pattern Nova- star that suddenly increases in brightness in just a few hours or days Nebula- massive cloud of dust and gas between the stars Galaxy- huge collection of stars Spiral Galaxy- galaxy that is shaped lik ...
PPT - Mr.E Science
... Stars smaller than the Sun have lives up to 200 billion years Medium Stars, like our Sun – have lives about 10 billion years Massive Stars – have very “short” life spans – about 10 million years ...
... Stars smaller than the Sun have lives up to 200 billion years Medium Stars, like our Sun – have lives about 10 billion years Massive Stars – have very “short” life spans – about 10 million years ...
Constellation, Star, and Deep Sky Object
... around the sun. 1 parsec = 3.262 light years Distance in astronomy is measured in light years, parsecs, or astronomical units. Metric prefix for AU and parsec, time for light-based. Deep Sky Objects Pulsar – supernova remnant ≈ 20 miles across with mass of 2-3 times our sun and composed completely o ...
... around the sun. 1 parsec = 3.262 light years Distance in astronomy is measured in light years, parsecs, or astronomical units. Metric prefix for AU and parsec, time for light-based. Deep Sky Objects Pulsar – supernova remnant ≈ 20 miles across with mass of 2-3 times our sun and composed completely o ...
ISM&Galaxy
... able to know the luminosity of stars – even very distant stars… Or perhaps you can make use of globular clusters. Then there is the question of whether there is any absorption between the stars. ...
... able to know the luminosity of stars – even very distant stars… Or perhaps you can make use of globular clusters. Then there is the question of whether there is any absorption between the stars. ...
CONSTELLATION TUCANA, THE TOUCAN
... Globular Cluster 47 Tucana is the second-brightest globular cluster in the sky after Omega Centauri, 47 Tucanae (NGC 104) lies just west of the Small Magellanic Cloud. Only 14,700 light-years distant from Earth, it is thought to be around 12 billion years old. Mostly composed of old, yellow stars, i ...
... Globular Cluster 47 Tucana is the second-brightest globular cluster in the sky after Omega Centauri, 47 Tucanae (NGC 104) lies just west of the Small Magellanic Cloud. Only 14,700 light-years distant from Earth, it is thought to be around 12 billion years old. Mostly composed of old, yellow stars, i ...
Astronomical distances and Stellar magnitudes
... 5. What is meant by the apparent magnitude of an astronomical object? 6. Give the approximate distance of the following in AU: (a) Sun to the Earth (b) Sun to Jupiter (c) Sun to Saturn (d) Sun to Pluto 7. Give the approximate distance of the following in light years: (a) Sun to the nearest star (b) ...
... 5. What is meant by the apparent magnitude of an astronomical object? 6. Give the approximate distance of the following in AU: (a) Sun to the Earth (b) Sun to Jupiter (c) Sun to Saturn (d) Sun to Pluto 7. Give the approximate distance of the following in light years: (a) Sun to the nearest star (b) ...
Day-6
... smaller protogalaxies. Several of these are still orbiting the Milky Way as satellite galaxies. These can contain significant amounts of gas. The gas delivered by the protogalaxies was a significant source of star formation. Evidence for different chemical evolution timescale. ...
... smaller protogalaxies. Several of these are still orbiting the Milky Way as satellite galaxies. These can contain significant amounts of gas. The gas delivered by the protogalaxies was a significant source of star formation. Evidence for different chemical evolution timescale. ...
300 MHz - 3 GHz Yes, we`re interested
... Big Science Driver: Galaxy Assembly and Evolution • HI: heard several times about billion galaxies to z=1.5. And further… • Diffuse HI (cosmic web) - IGM-galaxy feedback poorly understood aspect of galaxy formation • Local HI mass function, probe low-mass end, in various environments HVC/dwarfs ...
... Big Science Driver: Galaxy Assembly and Evolution • HI: heard several times about billion galaxies to z=1.5. And further… • Diffuse HI (cosmic web) - IGM-galaxy feedback poorly understood aspect of galaxy formation • Local HI mass function, probe low-mass end, in various environments HVC/dwarfs ...
mass per nucleon
... The Age of the Universe Stars in the oldest clusters have ages of 10-15 billion years From the expansion rate of the universe, we can estimate the time since the Big Bang. Current values are around 13 billion years. Are there stars older than the Universe??? ...
... The Age of the Universe Stars in the oldest clusters have ages of 10-15 billion years From the expansion rate of the universe, we can estimate the time since the Big Bang. Current values are around 13 billion years. Are there stars older than the Universe??? ...
2. A giant hand took one of the planets discovered
... 2. A giant hand took one of the planets discovered around other stars and put it in the solar system at the same distance from the sun as from its star. The mass of the planet is approximately that of Jupiter and the orbit is approximately that of Earth. These are the “hot Jupiters”, as big as Jupit ...
... 2. A giant hand took one of the planets discovered around other stars and put it in the solar system at the same distance from the sun as from its star. The mass of the planet is approximately that of Jupiter and the orbit is approximately that of Earth. These are the “hot Jupiters”, as big as Jupit ...
Part 2 Answer Key
... Star Clusters are multiple star systems bound together by the force of gravity. Star Clusters can be divided into two main groups. One group is called Globular Clusters. They contain many stars and gravity holds them tightly together. They swarm just outside the galaxy and form a halo or bulge. We k ...
... Star Clusters are multiple star systems bound together by the force of gravity. Star Clusters can be divided into two main groups. One group is called Globular Clusters. They contain many stars and gravity holds them tightly together. They swarm just outside the galaxy and form a halo or bulge. We k ...
MAUI STARGAZING MAY OBSERVING LIST DEEP SPACE
... FIRST MAGNITUDE STARS - First magnitude stars are the 20 brightest stars visible in the night sky from Planet Earth. Hipparchos, introduced the magnitude scale in the 1st century B.C.. ASTERISMS - An asterism is an informal pattern of stars recognized in the Earth's night sky. It may be part of an o ...
... FIRST MAGNITUDE STARS - First magnitude stars are the 20 brightest stars visible in the night sky from Planet Earth. Hipparchos, introduced the magnitude scale in the 1st century B.C.. ASTERISMS - An asterism is an informal pattern of stars recognized in the Earth's night sky. It may be part of an o ...
Classifying Stars
... As a main sequence star begins to die, it moves into the next stage. As a star cools and expands, helium fuses to form carbon, becoming a red giant. If it expands to a size that is more than 700 times as large as the sun, it is called a red super giant. ...
... As a main sequence star begins to die, it moves into the next stage. As a star cools and expands, helium fuses to form carbon, becoming a red giant. If it expands to a size that is more than 700 times as large as the sun, it is called a red super giant. ...
Figure 10-6 The same star field shown in Figure
... stars, however. When the magnitude scale was extended and expressed by a mathematical formula, it developed that the brighter stars are brighter than those of the first magnitude; indeed they are even brighter than those of zero magnitude. The only way to express these hitherto unsuspected magnitude ...
... stars, however. When the magnitude scale was extended and expressed by a mathematical formula, it developed that the brighter stars are brighter than those of the first magnitude; indeed they are even brighter than those of zero magnitude. The only way to express these hitherto unsuspected magnitude ...
Ch. 27 Stars & Galaxies
... • No energy source available for fusion. • Star looses its outer gases, core is left, leaving a planetary nebula or white dwarf o As the white dwarf cools and no longer emits energy it becomes a black dwarf. o Novas: Explosions that occur during the process of ...
... • No energy source available for fusion. • Star looses its outer gases, core is left, leaving a planetary nebula or white dwarf o As the white dwarf cools and no longer emits energy it becomes a black dwarf. o Novas: Explosions that occur during the process of ...
Starry Night¨ Times - October 2008
... to be sometimes visible to the naked eye (Aristotle is said to have noticed it around 325 B.C.) M41 is a good target for binos or low magnification in your scope. M46 and M47 are two open clusters just over 1° apart, making comparison very easy. Both are about 20 million years old but they're not co ...
... to be sometimes visible to the naked eye (Aristotle is said to have noticed it around 325 B.C.) M41 is a good target for binos or low magnification in your scope. M46 and M47 are two open clusters just over 1° apart, making comparison very easy. Both are about 20 million years old but they're not co ...
Serpens
Serpens (""the Serpent"", Greek Ὄφις) is a constellation of the northern hemisphere. One of the 48 constellations listed by the 2nd-century astronomer Ptolemy, it remains one of the 88 modern constellations defined by the International Astronomical Union. It is unique among the modern constellations in being split into two non-contiguous parts, Serpens Caput (Serpent's Head) to the west and Serpens Cauda (Serpent's Tail) to the east. Between these two halves lies the constellation of Ophiuchus, the ""Serpent-Bearer"". In figurative representations, the body of the serpent is represented as passing behind Ophiuchus between Mu Serpentis in Serpens Caput and Nu Serpentis in Serpens Cauda.The brightest star in Serpens is the red giant star Alpha Serpentis, or Unukalhai, in Serpens Caput, with an apparent magnitude of 2.63. Also located in Serpens Caput are the naked-eye globular cluster Messier 5 and the naked-eye variables R Serpentis and Tau4 Serpentis. Notable extragalactic objects include Seyfert's Sextet, one of the densest galaxy clusters known; Arp 220, the prototypical ultraluminous infrared galaxy; and Hoag's Object, the most famous of the very rare class of galaxies known as ring galaxies.Part of the Milky Way's galactic plane passes through Serpens Cauda, which is therefore rich in galactic deep-sky objects, such as the Eagle Nebula (IC 4703) and its associated star cluster Messier 16. The nebula measures 70 light-years by 50 light-years and contains the Pillars of Creation, three dust clouds that became famous for the image taken by the Hubble Space Telescope. Other striking objects include the Red Square Nebula, one of the few objects in astronomy to take on a square shape; and Westerhout 40, a massive nearby star-forming region consisting of a molecular cloud and an H II region.