Transcript - Chandra X
... Slide 7: More detailed information about the H-R diagram will be presented further along. Since the presentation of the deep sky objects includes their spectral class and luminosity classes, the H-R diagram terminology is given here for those unfamiliar with H-R diagrams. The H-R diagram is a plot ...
... Slide 7: More detailed information about the H-R diagram will be presented further along. Since the presentation of the deep sky objects includes their spectral class and luminosity classes, the H-R diagram terminology is given here for those unfamiliar with H-R diagrams. The H-R diagram is a plot ...
Candidate`s registration number: Desk number: ………………….. Date
... A5. Make a careful drawing of a Hertzsprung-Russell diagram. Mark on it the position of the main sequence and the Sun. Indicate the three giant branches that the Sun will visit after the main sequence. ...
... A5. Make a careful drawing of a Hertzsprung-Russell diagram. Mark on it the position of the main sequence and the Sun. Indicate the three giant branches that the Sun will visit after the main sequence. ...
Astronomy Study Guide
... Apparent brightness is based on the distance of the star from the Earth. If two stars have the same absolute brightness then the only way to tell the apparent brightness is to know the distance from Earth ...
... Apparent brightness is based on the distance of the star from the Earth. If two stars have the same absolute brightness then the only way to tell the apparent brightness is to know the distance from Earth ...
chapter6
... very specific radii and energies. • These characteristic electron energies are different for each individual element. ...
... very specific radii and energies. • These characteristic electron energies are different for each individual element. ...
A Sense of Scale - Young Scientists Journal
... Beyond this, we start to get to what most people would consider to be “unimaginable scales”. Jupiter, the largest planet orbiting the sun and that which consists of 71% of the mass of all the planets in the solar system combined is 143,000km in diameter. This means you could fit around 1,300 Earths ...
... Beyond this, we start to get to what most people would consider to be “unimaginable scales”. Jupiter, the largest planet orbiting the sun and that which consists of 71% of the mass of all the planets in the solar system combined is 143,000km in diameter. This means you could fit around 1,300 Earths ...
ESSAY - First Earth-Like Exoplanet Found in Habitable Zone
... through early fall. The data from these other observations help determine which candidates can be validated as planets. Kepler-22b is located 600 light-years away. While the planet is larger than Earth, its orbit of 290 days around a sun-like star resembles that of our world. The planet's host star ...
... through early fall. The data from these other observations help determine which candidates can be validated as planets. Kepler-22b is located 600 light-years away. While the planet is larger than Earth, its orbit of 290 days around a sun-like star resembles that of our world. The planet's host star ...
Measuring Motion, Doppler Effect—28 Oct Outline • Announcements
... – A single wavelength is seen on 1 Oct. – Two wavelengths are seen on 2 Oct – Separation of two wavelengths grows larger, then smaller. ...
... – A single wavelength is seen on 1 Oct. – Two wavelengths are seen on 2 Oct – Separation of two wavelengths grows larger, then smaller. ...
docx - STAO
... When you gaze up in the night sky some stars will be very bright while other stars are barely visible to the unaided eye. With the aid of binoculars you may be able to observe different colours in the stars. The brightness and colour of a star depends on three factors: temperature, distance, and siz ...
... When you gaze up in the night sky some stars will be very bright while other stars are barely visible to the unaided eye. With the aid of binoculars you may be able to observe different colours in the stars. The brightness and colour of a star depends on three factors: temperature, distance, and siz ...
lecture11
... The spectrum of a star: nearly a Black Body The light from a star is usually concentrated in a rather narrow range of wavelengths. The spectrum of a star’s light is approximately a black body spectrum. In fact, the spectrum of a star at the photosphere, before the light passes through the atmospher ...
... The spectrum of a star: nearly a Black Body The light from a star is usually concentrated in a rather narrow range of wavelengths. The spectrum of a star’s light is approximately a black body spectrum. In fact, the spectrum of a star at the photosphere, before the light passes through the atmospher ...
Lecture 9a: More on Star formation and evolution 10/22
... ! Stars like our Sun remain main sequence longer due to this PHYS 162 ...
... ! Stars like our Sun remain main sequence longer due to this PHYS 162 ...
SpfFin - Academic Program Pages
... center of the star. Contraction of a star continues slowly throughout its lifetime. Nuclear fusion begins as the temperature rises and this generates additional heat that produces an increase in internal gas pressure. 5. A certain star is seen to have a relatively low surface temperature but a very ...
... center of the star. Contraction of a star continues slowly throughout its lifetime. Nuclear fusion begins as the temperature rises and this generates additional heat that produces an increase in internal gas pressure. 5. A certain star is seen to have a relatively low surface temperature but a very ...
Climbing the Distance Ladder
... Venus, you know where the Sun is: at a focus of the elliptical orbit. ...
... Venus, you know where the Sun is: at a focus of the elliptical orbit. ...
Chapter 19 Star Formation
... Clouds contract in a “distorted” way: In fact the clouds are usually much more irregular than shown in this textbook illustration. (Note: all the colorful emission line nebulae shown in this chapter are just this same molecular gas after a massive stars has started pouring out photons. ...
... Clouds contract in a “distorted” way: In fact the clouds are usually much more irregular than shown in this textbook illustration. (Note: all the colorful emission line nebulae shown in this chapter are just this same molecular gas after a massive stars has started pouring out photons. ...
Chapter 19 Star Formation
... Clouds contract in a “distorted” way: In fact the clouds are usually much more irregular than shown in this textbook illustration. (Note: all the colorful emission line nebulae shown in this chapter are just this same molecular gas after a massive stars has started pouring out photons. ...
... Clouds contract in a “distorted” way: In fact the clouds are usually much more irregular than shown in this textbook illustration. (Note: all the colorful emission line nebulae shown in this chapter are just this same molecular gas after a massive stars has started pouring out photons. ...
procedure processing the data - Mr. Traeger`s Earth Science
... Homework for tonight! Go outside tonight after dark with your star finder and some binoculars if you have them. A small flashlight (preferably with a red filter) is also needed. Make sure to hold the star finder over your head and point the North arrow in the direction of the mountains. On a separat ...
... Homework for tonight! Go outside tonight after dark with your star finder and some binoculars if you have them. A small flashlight (preferably with a red filter) is also needed. Make sure to hold the star finder over your head and point the North arrow in the direction of the mountains. On a separat ...
Stellar Remnants
... • About 500 light years away • About 12 miles in diameter • “Tails” from a shock wave as Geminga plows through the interstellar medium ...
... • About 500 light years away • About 12 miles in diameter • “Tails” from a shock wave as Geminga plows through the interstellar medium ...
lecture19 - Stony Brook University
... that are moving away from us with huge speeds, using the observed Doppler shifts of known spectral lines. This indicates that they are very very far away (we will make this connection between recessional velocity and distance clear later – it’s called the Hubble expansion of the universe). From the ...
... that are moving away from us with huge speeds, using the observed Doppler shifts of known spectral lines. This indicates that they are very very far away (we will make this connection between recessional velocity and distance clear later – it’s called the Hubble expansion of the universe). From the ...
Today`s Powerpoint
... A star on Main Sequence has fusion of H to He in its core. How fast depends on mass of H available and rate of fusion. Mass of H in core depends on mass of star. Fusion rate is related to luminosity (fusion reactions make the radiation energy). So, lifetime ...
... A star on Main Sequence has fusion of H to He in its core. How fast depends on mass of H available and rate of fusion. Mass of H in core depends on mass of star. Fusion rate is related to luminosity (fusion reactions make the radiation energy). So, lifetime ...
Lyra
Lyra (/ˈlaɪərə/; Latin for lyre, from Greek λύρα) is a small constellation. It is one of 48 listed by the 2nd century astronomer Ptolemy, and is one of the 88 constellations recognized by the International Astronomical Union. Lyra was often represented on star maps as a vulture or an eagle carrying a lyre, and hence sometimes referred to as Aquila Cadens or Vultur Cadens. Beginning at the north, Lyra is bordered by Draco, Hercules, Vulpecula, and Cygnus. Lyra is visible from the northern hemisphere from spring through autumn, and nearly overhead, in temperate latitudes, during the summer months. From the southern hemisphere, it is visible low in the northern sky during the winter months.The lucida or brightest star—and one of the brightest stars in the sky—is the white main sequence star Vega, a corner of the Summer Triangle. Beta Lyrae is the prototype of a class of stars known as Beta Lyrae variables, binary stars so close to each other that they become egg-shaped and material flows from one to the other. Epsilon Lyrae, known informally as the Double Double, is a complex multiple star system. Lyra also hosts the Ring Nebula, the second-discovered and best-known planetary nebula.