Activity 4
... There are a number of ways to measure distances to stars and galaxies. One of the most important methods for measuring stellar distances is parallax. Parallax is the apparent motion of stars as ...
... There are a number of ways to measure distances to stars and galaxies. One of the most important methods for measuring stellar distances is parallax. Parallax is the apparent motion of stars as ...
Linking Asteroids and Meteorites through Reflectance Spectroscopy
... • Stars at the top above the main sequence are called Supergiants • Stars between the Supergiants and main sequence are called Giants • Stars below the Main Sequence are called White Dwarfs ...
... • Stars at the top above the main sequence are called Supergiants • Stars between the Supergiants and main sequence are called Giants • Stars below the Main Sequence are called White Dwarfs ...
The Milky Way - Midlandstech
... B. The Evolution of Star Clusters IV. Evidence of Evolution: Variable Stars A. Cepheid and RR Lyrae Variable Stars B. Pulsating Stars C. Period Changes in Variable Stars ...
... B. The Evolution of Star Clusters IV. Evidence of Evolution: Variable Stars A. Cepheid and RR Lyrae Variable Stars B. Pulsating Stars C. Period Changes in Variable Stars ...
Life Histories Stars
... massive stars compared to the life spans of less massive stars? Since the age of the universe is about 15 billion years, what does this say about the kind of stars most likely to have remained from the beginnings of the universe? What’s Going On? In this activity, you can see that the very massive s ...
... massive stars compared to the life spans of less massive stars? Since the age of the universe is about 15 billion years, what does this say about the kind of stars most likely to have remained from the beginnings of the universe? What’s Going On? In this activity, you can see that the very massive s ...
Life Histories Of Some Stars
... massive stars compared to the life spans of less massive stars? Since the age of the universe is about 15 billion years, what does this say about the kind of stars most likely to have remained from the beginnings of the universe? What’s Going On? In this activity, you can see that the very massive s ...
... massive stars compared to the life spans of less massive stars? Since the age of the universe is about 15 billion years, what does this say about the kind of stars most likely to have remained from the beginnings of the universe? What’s Going On? In this activity, you can see that the very massive s ...
Jun - Wadhurst Astronomical Society
... As early as 1843, Urbain Le Verrier studied Mercury because the planet’s position wasn’t always where it was calculated to be in its orbit and there was a proposal that there was another body causing this discrepancy and it was given the name Vulcan. Le Verrier was a mathematician and predicted a tr ...
... As early as 1843, Urbain Le Verrier studied Mercury because the planet’s position wasn’t always where it was calculated to be in its orbit and there was a proposal that there was another body causing this discrepancy and it was given the name Vulcan. Le Verrier was a mathematician and predicted a tr ...
Sections F and G
... objects are hotter than those around larger, less dense objects. Accretion discs around white dwarfs lead to optical emission (novae), while those around neutron stars (or black holes) result in X-ray emission (X-ray binaries). Novae A nova (short for stella nova, or new star) is a star which underg ...
... objects are hotter than those around larger, less dense objects. Accretion discs around white dwarfs lead to optical emission (novae), while those around neutron stars (or black holes) result in X-ray emission (X-ray binaries). Novae A nova (short for stella nova, or new star) is a star which underg ...
Ay 122a Fall 2012 – HOMEWORK #1
... as it transits through the local meridian, midnight local time. (a) What is the local siderial time? (b) What day of the year is it? (c) What is the approximate universal time (assume that you are in California)? (d) Can you do this from Palomar anyway (Palomar’s latitude is +33◦ 210 2100 (e) What i ...
... as it transits through the local meridian, midnight local time. (a) What is the local siderial time? (b) What day of the year is it? (c) What is the approximate universal time (assume that you are in California)? (d) Can you do this from Palomar anyway (Palomar’s latitude is +33◦ 210 2100 (e) What i ...
HR Diagram Lab Handout
... 7. The temperature of the hottest stars is _______________. 8. The color of the hottest stars is ________________. 9. The temperature of the coldest stars is _______________. 10. The color of the coldest stars is ________________. 11. The life expectancy of a very hot star is _______________ years. ...
... 7. The temperature of the hottest stars is _______________. 8. The color of the hottest stars is ________________. 9. The temperature of the coldest stars is _______________. 10. The color of the coldest stars is ________________. 11. The life expectancy of a very hot star is _______________ years. ...
Why is there a main sequence?
... Mmax ~ 100 solar masses a) More massive clouds fragment into smaller pieces during star formation ...
... Mmax ~ 100 solar masses a) More massive clouds fragment into smaller pieces during star formation ...
Spectral Variations of Several RV Tauri Type Stars Patrick Durant
... Light curve fits by Nesmith and Cash (adjacent poster, this conference) were used to convert the Julian Dates of our spectral observations to the appropriate phase of the ...
... Light curve fits by Nesmith and Cash (adjacent poster, this conference) were used to convert the Julian Dates of our spectral observations to the appropriate phase of the ...
Lives of Stars - Amazon Web Services
... the gas into a smaller and smaller space. The gas becomes so densely packed that its intense gravíty will not allow even light to escape. The remains of the star have become a black hole. No light, radio waves) or any other form of radiation can ever get out of a black hole, so it is not possible to ...
... the gas into a smaller and smaller space. The gas becomes so densely packed that its intense gravíty will not allow even light to escape. The remains of the star have become a black hole. No light, radio waves) or any other form of radiation can ever get out of a black hole, so it is not possible to ...
Planetary Nebula
... now unleashing a stream of ultraviolet radiation that is making the cast-off material glow. This object is an example of a planetary nebula, so-named because many of them have a round appearance resembling that of a planet when viewed through a small telescope. NGC 6302 lies within our Milky Way gal ...
... now unleashing a stream of ultraviolet radiation that is making the cast-off material glow. This object is an example of a planetary nebula, so-named because many of them have a round appearance resembling that of a planet when viewed through a small telescope. NGC 6302 lies within our Milky Way gal ...
Slide 1 - Beverley High School
... • These high mass stars finish their lives in massive supernova explosions • At the bottom right the stars are cool. These low mass stars are very long lived as they use their fuel so slowly. Very low mass M stars live many billions of years and will simply run out of fuel without dramatic events. ...
... • These high mass stars finish their lives in massive supernova explosions • At the bottom right the stars are cool. These low mass stars are very long lived as they use their fuel so slowly. Very low mass M stars live many billions of years and will simply run out of fuel without dramatic events. ...
CASPEC Observations of the Most Metal-Deficient Main
... known with emission exceeding this level. This is so striking that one may discriminate the Be from Ae stars. P Cygni type profiles are only seen in two very peculiar objects HD31648 and 41 51 1 . Moreover no [Fell] emission lines are reported for Ae stars. Similarly, N82 is probably not a premain s ...
... known with emission exceeding this level. This is so striking that one may discriminate the Be from Ae stars. P Cygni type profiles are only seen in two very peculiar objects HD31648 and 41 51 1 . Moreover no [Fell] emission lines are reported for Ae stars. Similarly, N82 is probably not a premain s ...
chapter 7
... Astronomers have now detected hundreds of planetary bodies, called exoplanets, moving in orbit around other stars. Most of these are more massive than any of the Sun's planets. These planetary-like bodies are detected because of their strong gravitationally interactions with their stars. However, te ...
... Astronomers have now detected hundreds of planetary bodies, called exoplanets, moving in orbit around other stars. Most of these are more massive than any of the Sun's planets. These planetary-like bodies are detected because of their strong gravitationally interactions with their stars. However, te ...
Introduction to the sky
... If we draw a line from the zenith through a celestial object and extend that line to the horizon, we obtain the azimuth angle of the object. By convention, the north point on the horizon has azimuth 0 degrees, the east point has azimuth 90 degrees, the south point has azimuth 180 degrees, and the w ...
... If we draw a line from the zenith through a celestial object and extend that line to the horizon, we obtain the azimuth angle of the object. By convention, the north point on the horizon has azimuth 0 degrees, the east point has azimuth 90 degrees, the south point has azimuth 180 degrees, and the w ...
Cygnus (constellation)
Cygnus /ˈsɪɡnəs/ is a northern constellation lying on the plane of the Milky Way, deriving its name from the Latinized Greek word for swan. The swan is one of the most recognizable constellations of the northern summer and autumn, it features a prominent asterism known as the Northern Cross (in contrast to the Southern Cross). Cygnus was among the 48 constellations listed by the 2nd century astronomer Ptolemy, and it remains one of the 88 modern constellations.Cygnus contains Deneb, one of the brightest stars in the night sky and one corner of the Summer Triangle, as well as some notable X-ray sources and the giant stellar association of Cygnus OB2. One of the stars of this association, NML Cygni, is one of the largest stars currently known. The constellation is also home to Cygnus X-1, a distant X-ray binary containing a supergiant and unseen massive companion that was the first object widely held to be a black hole. Many star systems in Cygnus have known planets as a result of the Kepler Mission observing one patch of the sky, the patch is the area around Cygnus. In addition, most of the eastern part of Cygnus is dominated by the Hercules–Corona Borealis Great Wall, a giant galaxy filament that is the largest known structure in the observable universe; covering most of the northern sky.