Stellar Evolution: the Death of Stars
... • Electron combines with proton to form neutrons • During the combining process, it produces neutrinos that carry energy away • The core ends up as all neutron, with nuclear density (1017 km/m3) • The degenerate neutron pressure suddenly halts the core contract • The outer core bounce back and sends ...
... • Electron combines with proton to form neutrons • During the combining process, it produces neutrinos that carry energy away • The core ends up as all neutron, with nuclear density (1017 km/m3) • The degenerate neutron pressure suddenly halts the core contract • The outer core bounce back and sends ...
Constellations - Sierra Star Gazers
... This constellation is best located by looking southward to the familiar scorpion shape, then locating the bright red star, Antares. This red supergiant represents the heart of the easy-to-recognize scorpion. Messier 4 is a 5th magnitude globular cluster that may be seen in the same FoV with Antares ...
... This constellation is best located by looking southward to the familiar scorpion shape, then locating the bright red star, Antares. This red supergiant represents the heart of the easy-to-recognize scorpion. Messier 4 is a 5th magnitude globular cluster that may be seen in the same FoV with Antares ...
Great Basin - 2016 NSS Convention
... As it is visible as a faint smudge on a moonless night, and is one of the farthest objects visible to the naked eye. The Andromeda Galaxy is approaching the Sun at about 62 to 87 miles per second, so Andromeda and the Milky Way are expected to collide in perhaps 2.5 billion years. ...
... As it is visible as a faint smudge on a moonless night, and is one of the farthest objects visible to the naked eye. The Andromeda Galaxy is approaching the Sun at about 62 to 87 miles per second, so Andromeda and the Milky Way are expected to collide in perhaps 2.5 billion years. ...
ExoplanetWorksheet
... mass’ do you get better detail when you plot with linear or logarithmic data points? __________________________________ *All of the rocky planets in our Solar System are at least 3 times more dense than Jupiter. Does it look like we’ve found very many or very few rocky exoplanets? __________________ ...
... mass’ do you get better detail when you plot with linear or logarithmic data points? __________________________________ *All of the rocky planets in our Solar System are at least 3 times more dense than Jupiter. Does it look like we’ve found very many or very few rocky exoplanets? __________________ ...
StarFlight - Center for the Presentation of Science
... constellation as a subjective shape, whose ascription from view on earth does not align with the actual position of the stars in space. For example, Figure 2 shows the constellation Scorpius as it is seen from earth and Figure 3 shows this same constellation as it is viewed from the side, 293 light- ...
... constellation as a subjective shape, whose ascription from view on earth does not align with the actual position of the stars in space. For example, Figure 2 shows the constellation Scorpius as it is seen from earth and Figure 3 shows this same constellation as it is viewed from the side, 293 light- ...
Candidate`s registration number: Desk number: ………………….. Date
... At the end of the examination, tie this paper to your answer book for Section B and hand them in together. Remember to fill in your registration number from your UCard in the space below. If you attempt additional questions in Section B, please indicate clearly on the cover of your answer book which ...
... At the end of the examination, tie this paper to your answer book for Section B and hand them in together. Remember to fill in your registration number from your UCard in the space below. If you attempt additional questions in Section B, please indicate clearly on the cover of your answer book which ...
File
... • The outer shells of the core contain all elements lighter than iron. These are now targets for the neutrons. • These elements capture neutrons until they are swollen up to isotopes like 250Fe! Then they decay into copper, gold, lead, etc. - all the remaining elements in the ...
... • The outer shells of the core contain all elements lighter than iron. These are now targets for the neutrons. • These elements capture neutrons until they are swollen up to isotopes like 250Fe! Then they decay into copper, gold, lead, etc. - all the remaining elements in the ...
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 ...
λ max T = 2.898 x 10 -3
... 3. As the temperature increases λmax moves to the left towards higher frequency. 4. At higher temperatures there is a sharp falling off of radiation at values greater than λmax towards a limiting value in the ultraviolet range which is of very short wavelength but not zero. This is referred to as th ...
... 3. As the temperature increases λmax moves to the left towards higher frequency. 4. At higher temperatures there is a sharp falling off of radiation at values greater than λmax towards a limiting value in the ultraviolet range which is of very short wavelength but not zero. This is referred to as th ...
Part 1: If a 10000 K blackbody has a wavelength of peak emission at
... Use the blackbody simulator to get a better feel for this inverse relation and review the material in Module 1 Lecture F. Also, as I said in class, if this inverse relation did not hold then cooler objects would be emitting short wavelength high energy photons which doesn’t make any physical sense b ...
... Use the blackbody simulator to get a better feel for this inverse relation and review the material in Module 1 Lecture F. Also, as I said in class, if this inverse relation did not hold then cooler objects would be emitting short wavelength high energy photons which doesn’t make any physical sense b ...
The Warrumbungle Observer The Warrumbungle Observer
... Through a telescope the disc of Jupiter can be easily seen with a pair of parallel brownish stripes. These are cloud bands equivalent to the trade winds on Earth and move in the opposite direction to the spin of the planet. On a night of good seeing, the Great Red Spot can be seen. The Great Red Spo ...
... Through a telescope the disc of Jupiter can be easily seen with a pair of parallel brownish stripes. These are cloud bands equivalent to the trade winds on Earth and move in the opposite direction to the spin of the planet. On a night of good seeing, the Great Red Spot can be seen. The Great Red Spo ...
Lecture 9
... • Each difference of five magnitudes represents a factor of 100 in brightness • A few objects have magnitudes less than 1 • Absolute magnitude describes stellar luminosities – Its what the stars apparent magnitude would be if it were 10 parsecs away ...
... • Each difference of five magnitudes represents a factor of 100 in brightness • A few objects have magnitudes less than 1 • Absolute magnitude describes stellar luminosities – Its what the stars apparent magnitude would be if it were 10 parsecs away ...
CyclesOfTheSky
... So the horoscopes are off by about one whole constellation compared to the real sky. Astrologers now tell you that they use a different zodiac that is not aligned with the constellations. That zodiac has 12 “houses” of equal size. I personally give no credence to astrology, think it is wrong and ano ...
... So the horoscopes are off by about one whole constellation compared to the real sky. Astrologers now tell you that they use a different zodiac that is not aligned with the constellations. That zodiac has 12 “houses” of equal size. I personally give no credence to astrology, think it is wrong and ano ...
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.