eta carinae – nature`s own hadron collider
... ETA CARINAE IS ONE OF THE MOST MASSIVE STARS KNOWN. IT IS AROUND 100 SOLAR MASSES. THE UPPER LIMIT OF STAR SIZE IS THOUGHT TO BE AROUND 150 SOLAR MASSES. BECAUSE OF ITS SIZE, AND THE HIGH ENERGIES PRODUCED BECAUSE OF GRAVITY, IT IS UNSTABLE. ...
... ETA CARINAE IS ONE OF THE MOST MASSIVE STARS KNOWN. IT IS AROUND 100 SOLAR MASSES. THE UPPER LIMIT OF STAR SIZE IS THOUGHT TO BE AROUND 150 SOLAR MASSES. BECAUSE OF ITS SIZE, AND THE HIGH ENERGIES PRODUCED BECAUSE OF GRAVITY, IT IS UNSTABLE. ...
Yeatman-Liddell College Preparatory Middle School Winter
... Our local star is the Sun. It appears to be rather small as stars go. Stars are fueled by hydrogen, and they exist until the last of their hydrogen fuel is used up. Our Sun will not run out of hydrogen for 5 billion years. Then our Sun will swell up and become a red giant. The core will continue to ...
... Our local star is the Sun. It appears to be rather small as stars go. Stars are fueled by hydrogen, and they exist until the last of their hydrogen fuel is used up. Our Sun will not run out of hydrogen for 5 billion years. Then our Sun will swell up and become a red giant. The core will continue to ...
CONSTELLATION DELPHINUS, THE DOLPHIN
... 3.5 in December 1967 On 14 August 2013, a possible nova was discovered by amateur astronomer Koichi Itagaki, initially labelled PNV J20233073+2046041, now labelled Nova Delphini 2013. DEEP-SKY OBJECTS Because it is in a rich Milky Way star field, Delphinus has several deep-sky objects: NGC 6891 is a ...
... 3.5 in December 1967 On 14 August 2013, a possible nova was discovered by amateur astronomer Koichi Itagaki, initially labelled PNV J20233073+2046041, now labelled Nova Delphini 2013. DEEP-SKY OBJECTS Because it is in a rich Milky Way star field, Delphinus has several deep-sky objects: NGC 6891 is a ...
PREVIEW-Reading Quiz 06 - Chapter 12
... Regulus (constellation Leo) and Barnard's Star (constellation Ophiuchus) are both main sequence stars. Regulus has a mass about 25 times that of Barnard's Star, but will live a much shorter time on the main sequence. Why is that? Regulus has a much smaller fusion core than Barnard's Star and thus ha ...
... Regulus (constellation Leo) and Barnard's Star (constellation Ophiuchus) are both main sequence stars. Regulus has a mass about 25 times that of Barnard's Star, but will live a much shorter time on the main sequence. Why is that? Regulus has a much smaller fusion core than Barnard's Star and thus ha ...
CHARACTERISTICS OF STARS
... The stars in the sky all appear to be points of light of the same size. Many stars are actually the same size of the Sun, which is a medium-sized star. However, some stars are much larger and are called giant and supergiant stars. Most stars are much smaller than the Sun. Black and white dwarf stars ...
... The stars in the sky all appear to be points of light of the same size. Many stars are actually the same size of the Sun, which is a medium-sized star. However, some stars are much larger and are called giant and supergiant stars. Most stars are much smaller than the Sun. Black and white dwarf stars ...
ch16 b - Manasquan Public Schools
... The radiation has shown a cooling trend which has allowed scientist to measure the overall temperature of the universe. (2.7 K) Also the amount hydrogen (most common ...
... The radiation has shown a cooling trend which has allowed scientist to measure the overall temperature of the universe. (2.7 K) Also the amount hydrogen (most common ...
Birth and Death of Stars
... • After the supergiant stage, massive stars contract with a gravitational force much greater than low mass stars. The high pressures and temperatures that result causes nuclear fusion to begin again. This time the core fuses into heavier elements such as oxygen, magnesium, or silicon. Fusion continu ...
... • After the supergiant stage, massive stars contract with a gravitational force much greater than low mass stars. The high pressures and temperatures that result causes nuclear fusion to begin again. This time the core fuses into heavier elements such as oxygen, magnesium, or silicon. Fusion continu ...
Essay One - Physics & Astronomy
... Solar System- 6,000,000,000km=6x109km (4 x 109 miles) The Milky Way Galaxy-1018km(6x1018 miles) Local Group of Galaxies-1021km(6x1021miles) Universe-bigger than we can imagine. ...
... Solar System- 6,000,000,000km=6x109km (4 x 109 miles) The Milky Way Galaxy-1018km(6x1018 miles) Local Group of Galaxies-1021km(6x1021miles) Universe-bigger than we can imagine. ...
Properties of Stars Name
... against its absolute magnitude. From such a diagram, other information about a star’s properties and life cycle can be determined. In this lab, you will construct an H-R diagram using data on the 20 stars that are nearest to our sun (Figure 21.1) and the 20 stars that appear brightest in our sky (Fi ...
... against its absolute magnitude. From such a diagram, other information about a star’s properties and life cycle can be determined. In this lab, you will construct an H-R diagram using data on the 20 stars that are nearest to our sun (Figure 21.1) and the 20 stars that appear brightest in our sky (Fi ...
Chapter 10 Hertzsprung-Russel Diagrams and Distance to Stars
... Discovering whether this was true presented some obvious challenges. Since the distances to the stars were unknown, one could not determine the intrinsic brightness of a star, but only its apparent brightness. As we’ve already said, a bright star that’s very far away would appear much fainter than ...
... Discovering whether this was true presented some obvious challenges. Since the distances to the stars were unknown, one could not determine the intrinsic brightness of a star, but only its apparent brightness. As we’ve already said, a bright star that’s very far away would appear much fainter than ...
W > 1 - The Open University
... M45 oc - "The Pleiades" or "Seven Sisters". Probably the most famous star cluster. Test your eyesight from a dark site by counting the number of naked eye stars that are visible. Seven should readily be seen. Keen vision will lead you into double figures. A test for moderate apertures is the nebulos ...
... M45 oc - "The Pleiades" or "Seven Sisters". Probably the most famous star cluster. Test your eyesight from a dark site by counting the number of naked eye stars that are visible. Seven should readily be seen. Keen vision will lead you into double figures. A test for moderate apertures is the nebulos ...
Lecture Notes-PPT
... between the stars, some stars reach escape velocity from the protocluster and become runaway stars. The rest become gravitationally bound, meaning they will exist as collection orbiting each other forever. ...
... between the stars, some stars reach escape velocity from the protocluster and become runaway stars. The rest become gravitationally bound, meaning they will exist as collection orbiting each other forever. ...
Light and the Electromagnetic Spectrum
... present. The way we can tell which are there is to look at the spectrum of the star. • From spectral lines astronomers can determine not only the element, but the temperature and density of that element in the star. • Emission lines can also tell us about the magnetic field of the star. The width of ...
... present. The way we can tell which are there is to look at the spectrum of the star. • From spectral lines astronomers can determine not only the element, but the temperature and density of that element in the star. • Emission lines can also tell us about the magnetic field of the star. The width of ...
HOMEWORK #1
... The figure below shows the lightcurve of the star HD 179070 as an orbiting exoplanet transits in front of the star every 2.785755 days and eclipses some of the star’s brightness. From the star’s spectrum, we know the star has a mass of 1.3 MSun and a radius of 1.9 RSun. Based on the relative amount ...
... The figure below shows the lightcurve of the star HD 179070 as an orbiting exoplanet transits in front of the star every 2.785755 days and eclipses some of the star’s brightness. From the star’s spectrum, we know the star has a mass of 1.3 MSun and a radius of 1.9 RSun. Based on the relative amount ...
HOMEWORK #1
... The figure below shows the lightcurve of the star HD 179070 as an orbiting exoplanet transits in front of the star every 2.785755 days and eclipses some of the star’s brightness. From the star’s spectrum, we know the star has a mass of 1.3 MSun and a radius of 1.9 RSun. Based on the relative amount ...
... The figure below shows the lightcurve of the star HD 179070 as an orbiting exoplanet transits in front of the star every 2.785755 days and eclipses some of the star’s brightness. From the star’s spectrum, we know the star has a mass of 1.3 MSun and a radius of 1.9 RSun. Based on the relative amount ...
Life Cycle of a Star - Intervention Worksheet
... dwarf. The white dwarf eventually runs out of fuel and dies as a black dwarf. The Death of a High Mass Star A dying red super giant star can suddenly explode. The explosion is called a supernova. After the star explodes, some of the materials from the star are left behind. This material may form a n ...
... dwarf. The white dwarf eventually runs out of fuel and dies as a black dwarf. The Death of a High Mass Star A dying red super giant star can suddenly explode. The explosion is called a supernova. After the star explodes, some of the materials from the star are left behind. This material may form a n ...
Introduction to Astronomy - Northumberland Astronomical Society
... Dr Adrian Jannetta FRAS Northumberland Astronomical Society ...
... Dr Adrian Jannetta FRAS Northumberland Astronomical Society ...
iClicker Questions
... Discovering the Universe, Eighth Edition by Neil F. Comins and William J. Kaufmann III Chapter 12 12-1. Protostars are not seen in visible light telescopes because: a) they don’t emit any radiation b) they are surrounded by clouds of gas and dust * c) they only emit infrared radiation d) they are al ...
... Discovering the Universe, Eighth Edition by Neil F. Comins and William J. Kaufmann III Chapter 12 12-1. Protostars are not seen in visible light telescopes because: a) they don’t emit any radiation b) they are surrounded by clouds of gas and dust * c) they only emit infrared radiation d) they are al ...
For instance, two hydrogen atoms may fuse together to form one
... of visible light given off (its brightness) and the color we perceive the star to be. For example, yellow stars produce light of all colors, but the distribution causes our eyes to see more yellow light than any other color. White stars give off roughly equal amounts of every kind of light, and the ...
... of visible light given off (its brightness) and the color we perceive the star to be. For example, yellow stars produce light of all colors, but the distribution causes our eyes to see more yellow light than any other color. White stars give off roughly equal amounts of every kind of light, and the ...
Ursa Minor
Ursa Minor (Latin: ""Smaller She-Bear"", contrasting with Ursa Major), also known as the Little Bear, is a constellation in the northern sky. Like the Great Bear, the tail of the Little Bear may also be seen as the handle of a ladle, hence the name Little Dipper. It was one of the 48 constellations listed by the 2nd-century astronomer Ptolemy, and remains one of the 88 modern constellations. Ursa Minor has traditionally been important for navigation, particularly by mariners, due to Polaris being the North Star.Polaris, the brightest star in the constellation, is a yellow-white supergiant and the brightest Cepheid variable star in the night sky, ranging from apparent magnitude 1.97 to 2.00. Beta Ursae Minoris, also known as Kochab, is an aging star that has swollen and cooled to become an orange giant with an apparent magnitude of 2.08, only slightly fainter than Polaris. Kochab and magnitude 3 Gamma Ursae Minoris have been called the ""guardians of the pole star"". Planets have been detected orbiting four of the stars, including Kochab. The constellation also contains an isolated neutron star—Calvera—and H1504+65, the hottest white dwarf yet discovered with a surface temperature of 200,000 K.