Star project
... • They are extremely burning hot. • The nearest star to us is the sun. • They are made up of mainly hydrogen and helium, but have a little bit of other elements like oxygen and carbon as well. ...
... • They are extremely burning hot. • The nearest star to us is the sun. • They are made up of mainly hydrogen and helium, but have a little bit of other elements like oxygen and carbon as well. ...
JPL Small-Body Database Browser
... Classification of Stars • Furthermore, the classifications are each divided into tenths, with labels going from 0 to 9 – e.g. If a star is said to be a G-class star, it could, at its brightest, be classified as a G9 star, and at its dimmest, be classified as a G0 star. • The Sun is classified as a ...
... Classification of Stars • Furthermore, the classifications are each divided into tenths, with labels going from 0 to 9 – e.g. If a star is said to be a G-class star, it could, at its brightest, be classified as a G9 star, and at its dimmest, be classified as a G0 star. • The Sun is classified as a ...
Everything Under and Over The Stars
... Neutron Stars? Neutron stars spin very fast and are only 10-15 km in radius. Neutron stars are made when super giants break down and together comes a neutron star. A few neutron stars emit radio waves and are known as pulsars. ...
... Neutron Stars? Neutron stars spin very fast and are only 10-15 km in radius. Neutron stars are made when super giants break down and together comes a neutron star. A few neutron stars emit radio waves and are known as pulsars. ...
Week 11 Concept Summary
... found there. There is no gas and dust, and what stars are there have very low concentrations of heavy elements. They also orbit randomly in the gallaxy. 2. Interstellar Medium: This is the gas and dust that floats freely about the galaxy. It is what blocks visible light and only allows us to see nea ...
... found there. There is no gas and dust, and what stars are there have very low concentrations of heavy elements. They also orbit randomly in the gallaxy. 2. Interstellar Medium: This is the gas and dust that floats freely about the galaxy. It is what blocks visible light and only allows us to see nea ...
class17
... How would the apparent brightness of Alpha Centauri change if it were three times farther away? ...
... How would the apparent brightness of Alpha Centauri change if it were three times farther away? ...
PowerPoint Presentation - ASTR498E High energy
... just about any other property of the object Distance is often difficult to determine! ...
... just about any other property of the object Distance is often difficult to determine! ...
Life Cycle of a Star
... • In the main sequence, surface temperature increases as brightness increases. • Main sequence stars are stars that are fusing hydrogen atoms to form helium atoms in their cores. • These stars can range from about a tenth of the mass of the sun to up to 200 times as massive. ...
... • In the main sequence, surface temperature increases as brightness increases. • Main sequence stars are stars that are fusing hydrogen atoms to form helium atoms in their cores. • These stars can range from about a tenth of the mass of the sun to up to 200 times as massive. ...
Apparent brightness
... Supergiants – A star with a radius between 100 and 1000 times that of the Sun Red giant – A giant star whose surface temperature is relatively low, so that it glows red. Dwarf – Any star with radius comparable to, or smaller than, that of the Sun (including the Sun itself) White dwarf – A dw ...
... Supergiants – A star with a radius between 100 and 1000 times that of the Sun Red giant – A giant star whose surface temperature is relatively low, so that it glows red. Dwarf – Any star with radius comparable to, or smaller than, that of the Sun (including the Sun itself) White dwarf – A dw ...
No Slide Title
... becomes so dense it collapses in on itself, becoming a single point of zero size! Its gravity is so strong that even light cannot escape from inside a certain boundary - the EVENT HORIZON. The star is now a BLACK HOLE ! Although we will never actually SEE a black hole, we can see their effects. A nu ...
... becomes so dense it collapses in on itself, becoming a single point of zero size! Its gravity is so strong that even light cannot escape from inside a certain boundary - the EVENT HORIZON. The star is now a BLACK HOLE ! Although we will never actually SEE a black hole, we can see their effects. A nu ...
Test#3
... 1. A measurement of the parallax of a star allows us directly to determine the star's a) rotation rate, b) temperature, c) distance, d) age 2. How much brighter would a star be if an observer moved from 3 to 1 parsec from the star? a) 3 times, b) 9 times, c) 27 times, d) 81 times 3. The difference b ...
... 1. A measurement of the parallax of a star allows us directly to determine the star's a) rotation rate, b) temperature, c) distance, d) age 2. How much brighter would a star be if an observer moved from 3 to 1 parsec from the star? a) 3 times, b) 9 times, c) 27 times, d) 81 times 3. The difference b ...
Life Cycle of a Star
... • In the main sequence, surface temperature increases as brightness increases. • Main sequence stars are stars that are fusing hydrogen atoms to form helium atoms in their cores. • These stars can range from about a tenth of the mass of the sun to up to 200 times as massive. ...
... • In the main sequence, surface temperature increases as brightness increases. • Main sequence stars are stars that are fusing hydrogen atoms to form helium atoms in their cores. • These stars can range from about a tenth of the mass of the sun to up to 200 times as massive. ...
Constellation Notes
... A constellation is a group of visible starts that form a pattern when viewed from the Earth. The pattern they form may take the shape of an animal, a mythological creature, a man, a woman, or an inanimate object such as a microscope, a compass, or a crown. How many constellations are there? The sky ...
... A constellation is a group of visible starts that form a pattern when viewed from the Earth. The pattern they form may take the shape of an animal, a mythological creature, a man, a woman, or an inanimate object such as a microscope, a compass, or a crown. How many constellations are there? The sky ...
Slide 1
... Variable Stars Some stars show intrinsic brightness variations not caused by eclipsing in binary systems. Most important example: d Cephei ...
... Variable Stars Some stars show intrinsic brightness variations not caused by eclipsing in binary systems. Most important example: d Cephei ...
The night sky in October and November
... constellation Pisces as two fish. No bright stars, but on a clear night, should be able to see the “vee” that is the cord and two fish. If born under the sign of Pisces, the sun was in front of the constellation Pisces, but 2,000 years ago. Now, on the same date, the sun is in the constellation Aqua ...
... constellation Pisces as two fish. No bright stars, but on a clear night, should be able to see the “vee” that is the cord and two fish. If born under the sign of Pisces, the sun was in front of the constellation Pisces, but 2,000 years ago. Now, on the same date, the sun is in the constellation Aqua ...
The Ionization Structure of the Irregular Galaxy NGC 4449
... Galaxies are gravitationally bound aggregations of stars, gas and dust. In the 1920's, Edwin Hubble classified galaxies by their shape into three major types, spiral, elliptical and irregular. Examples are shown in Figures 1a, b and c. More details about galaxies can be found in the article from thi ...
... Galaxies are gravitationally bound aggregations of stars, gas and dust. In the 1920's, Edwin Hubble classified galaxies by their shape into three major types, spiral, elliptical and irregular. Examples are shown in Figures 1a, b and c. More details about galaxies can be found in the article from thi ...
Stars
... they have after a few million years. When this happens, the outer shell of the star begins to expand. It grows to about triple the size that it currently is. The Blue Supergiant now becomes a Supergiant. Supergiants are orange/yellow and are mostly helium. This is the last stage before it blows up. ...
... they have after a few million years. When this happens, the outer shell of the star begins to expand. It grows to about triple the size that it currently is. The Blue Supergiant now becomes a Supergiant. Supergiants are orange/yellow and are mostly helium. This is the last stage before it blows up. ...
stars
... huge explosion. • This huge explosion was known as The Big Bang. • Scientist believe that this huge explosion gave birth to the stars and planets ...
... huge explosion. • This huge explosion was known as The Big Bang. • Scientist believe that this huge explosion gave birth to the stars and planets ...
Stars and Galaxies
... HUGE clouds of gas and dust occur (nebulae) in parts of space between the stars Contain as much material as the stars themselves These clouds are about 99% gas (hydrogen) Remaining 1% is a mixture of very fine particles of silicon carbide, graphite, diamonds, nitrogen and other elements It is believ ...
... HUGE clouds of gas and dust occur (nebulae) in parts of space between the stars Contain as much material as the stars themselves These clouds are about 99% gas (hydrogen) Remaining 1% is a mixture of very fine particles of silicon carbide, graphite, diamonds, nitrogen and other elements It is believ ...
Old Final
... C) It just so happens that we are located where the big bang took place D) Dark Energy is expanding the Universe E) expansion of the universe means nearly all galaxies are all moving away from each other 40. The Milky Way is a: ...
... C) It just so happens that we are located where the big bang took place D) Dark Energy is expanding the Universe E) expansion of the universe means nearly all galaxies are all moving away from each other 40. The Milky Way is a: ...
Unit 1
... A. Nuclear burning induced by the black hole B. Expansion of the Universe locally near the black hole C. Effect of the gravitational field on virtual electronpositron pairs arising due to the quantum mechanical ...
... A. Nuclear burning induced by the black hole B. Expansion of the Universe locally near the black hole C. Effect of the gravitational field on virtual electronpositron pairs arising due to the quantum mechanical ...
OGT TYPE QUESTIONS
... Nuclear fusion is the process by which two or more nuclei with small masses (such as hydrogen) join together, or fuse, to form a larger, more massive nucleus (such as helium). During this process, a massive amount of energy and radioactive emissions (such as gamma rays) are produced. Combustion, and ...
... Nuclear fusion is the process by which two or more nuclei with small masses (such as hydrogen) join together, or fuse, to form a larger, more massive nucleus (such as helium). During this process, a massive amount of energy and radioactive emissions (such as gamma rays) are produced. Combustion, and ...
Chapter 19 Star Formation
... stars can profoundly affect their star cluster, as they can blow away dust and gas before it has time to collapse. ...
... stars can profoundly affect their star cluster, as they can blow away dust and gas before it has time to collapse. ...
ASTR 553/554 (1) : Questions
... (4) Alien Astronomers in Virgo study the Milky Way Galaxy disks often have exponential surface brightness profiles: I(R) = I(0) exp(-R/Rd), where Rd is the disk (e-folding) "scale length", and I(0) is the central surface brightness. Recall, the units of I(R) are L pc-2. For example, the disk of the ...
... (4) Alien Astronomers in Virgo study the Milky Way Galaxy disks often have exponential surface brightness profiles: I(R) = I(0) exp(-R/Rd), where Rd is the disk (e-folding) "scale length", and I(0) is the central surface brightness. Recall, the units of I(R) are L pc-2. For example, the disk of the ...
Life Cycle of Stars
... Expanding Universe Edwin Hubble devised a classification system for galaxies and categorized than content, distance, shape, and brightness. He noticed that there were redshifts in the emission of light from many dimly lit galaxies and realized that these were moving away from each other at a rate co ...
... Expanding Universe Edwin Hubble devised a classification system for galaxies and categorized than content, distance, shape, and brightness. He noticed that there were redshifts in the emission of light from many dimly lit galaxies and realized that these were moving away from each other at a rate co ...
Properties of Stars and H
... There are 2 ways to measure brightness: • Apparent magnitude – when we use size, temperature, and distance to earth to calculate brightness. This is not a true measure because ...
... There are 2 ways to measure brightness: • Apparent magnitude – when we use size, temperature, and distance to earth to calculate brightness. This is not a true measure because ...
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.