Proficiency Step #5--
... Ursa Major is full of unique celestial objects. The two outer edge stars that make up the "bowl" of the dipper are Merak, the top one, and Dubhe. Connect a line between the two, and extend it north a distance about five times the distance between them. It will connect with the North Star, Polaris. I ...
... Ursa Major is full of unique celestial objects. The two outer edge stars that make up the "bowl" of the dipper are Merak, the top one, and Dubhe. Connect a line between the two, and extend it north a distance about five times the distance between them. It will connect with the North Star, Polaris. I ...
Lab 2
... 12. Draw the location of the Sun as accurately as possible on figure 3. 13. Two students are discussing their answers to the question “Figure 4 shows the same view of the sky one month later on January 1. Draw the location of the Sun as accurately as possible on figure 4.” Student 1 (Davey): The Sun ...
... 12. Draw the location of the Sun as accurately as possible on figure 3. 13. Two students are discussing their answers to the question “Figure 4 shows the same view of the sky one month later on January 1. Draw the location of the Sun as accurately as possible on figure 4.” Student 1 (Davey): The Sun ...
Astronomy Teleclass Webinar!
... How many planets do we have in our solar system? 8 Pluto is now part of the Kuiper Belt. The Sun rotates once every 27 days at its equator and 31 days at the poles. The core temperature of the Sun is 15 million degrees Celsius. A planet has three criteria: It orbits the Sun, has cleared its orbi ...
... How many planets do we have in our solar system? 8 Pluto is now part of the Kuiper Belt. The Sun rotates once every 27 days at its equator and 31 days at the poles. The core temperature of the Sun is 15 million degrees Celsius. A planet has three criteria: It orbits the Sun, has cleared its orbi ...
TTh HW06 key
... 20. Two stars in our sky have the same apparent brightness. If neither of them is hidden behind gas or dust clouds, then we know that they A) may be at different distances, in which case the nearest one must have the greater luminosity. B) may be at different distances, in which case the farther one ...
... 20. Two stars in our sky have the same apparent brightness. If neither of them is hidden behind gas or dust clouds, then we know that they A) may be at different distances, in which case the nearest one must have the greater luminosity. B) may be at different distances, in which case the farther one ...
1 Name: Date: PARALLAX EXERCISE1 The goal of this
... it was once believed that they were different types of objects. In fact, the Sun was once considered a planet! We now know the Sun is just another star, and the reason that the Sun appears different to us is that it is so much closer. Determining distances to celestial objects is one of the most imp ...
... it was once believed that they were different types of objects. In fact, the Sun was once considered a planet! We now know the Sun is just another star, and the reason that the Sun appears different to us is that it is so much closer. Determining distances to celestial objects is one of the most imp ...
Lecture Nine (Powerpoint format) - FLASH Center for Computational
... Some nuclei are radioactively unstable, and will transition from one nuclear state to another. In some cases, a nucleus is formed in an excited state, similar to an excited state of an atom. In an excited atomic state, an electron will transition from one state to a lower state, emitting a par ...
... Some nuclei are radioactively unstable, and will transition from one nuclear state to another. In some cases, a nucleus is formed in an excited state, similar to an excited state of an atom. In an excited atomic state, an electron will transition from one state to a lower state, emitting a par ...
Stars - WhatisOutThere
... How far away are the stars? The stars are not all spread out evenly in our universe, meaning that they are not all the same distance from us. Some are closer and some are further away. If a star is glowing brightly it means it one of the closer stars. If a star is quite dim, it is much further away ...
... How far away are the stars? The stars are not all spread out evenly in our universe, meaning that they are not all the same distance from us. Some are closer and some are further away. If a star is glowing brightly it means it one of the closer stars. If a star is quite dim, it is much further away ...
m03a01
... celestial pole” celestial poleshemisphere (for southern viewers) and the “north celestial pole” (for northern hemisphere viewers). Star trails around the south celestial pole, towards the dome of the AngloAustralian Telescope (AAT) ...
... celestial pole” celestial poleshemisphere (for southern viewers) and the “north celestial pole” (for northern hemisphere viewers). Star trails around the south celestial pole, towards the dome of the AngloAustralian Telescope (AAT) ...
Chapter 13
... 8. Why have no black dwarfs yet been observed in our galaxy? a. They can only be detected by their gravitational influence on a binary companion. b. They are too dim for our present-day telescopes to detect. c. Astronomers are not motivated to search for such objects. d. They are all too distant (in ...
... 8. Why have no black dwarfs yet been observed in our galaxy? a. They can only be detected by their gravitational influence on a binary companion. b. They are too dim for our present-day telescopes to detect. c. Astronomers are not motivated to search for such objects. d. They are all too distant (in ...
G485 5.5.1 Structure of the Universe
... Astronomers have recently announced that there is a massive black hole at the very centre of the Milky Way. This black hole is relatively small in size, having a radius of only 6.25 light-hours, but it is massive because of the extraordinary amount of matter it contains, estimated at about 3.7 milli ...
... Astronomers have recently announced that there is a massive black hole at the very centre of the Milky Way. This black hole is relatively small in size, having a radius of only 6.25 light-hours, but it is massive because of the extraordinary amount of matter it contains, estimated at about 3.7 milli ...
AAVSO: Mu Cephei, October 2002 Variable Star Of The Month
... Mu Cephei is really big. It is so big that it is one of the largest stars known; estimated to be the third largest star in the sky after its neighbor VV Cephei and the even larger Epsilon Aurigae (both are eclipsing binaries). If you were so inclined, you could fit one billion suns inside mu cephei ...
... Mu Cephei is really big. It is so big that it is one of the largest stars known; estimated to be the third largest star in the sky after its neighbor VV Cephei and the even larger Epsilon Aurigae (both are eclipsing binaries). If you were so inclined, you could fit one billion suns inside mu cephei ...
Lecture 10: The Hertzsprung
... See also Figure 19-21 in your book There is a mass-luminosity relation on the main sequence. We can use that + a sample of stars where we get all the stars within a certain distance of the Sun to figure out how many stars of what masses are out there. Answer: Lots of low-mass stars! Very few high-m ...
... See also Figure 19-21 in your book There is a mass-luminosity relation on the main sequence. We can use that + a sample of stars where we get all the stars within a certain distance of the Sun to figure out how many stars of what masses are out there. Answer: Lots of low-mass stars! Very few high-m ...
20040907103511001-148699
... Differential-rotation decay Rotation of solar core is slow and uniform Rotation period has increased by factor of 10 during life Viscosity too small to reduce rotation homogeneously throughout the Sun Magnetic Ap stars rotate much slower than „normal“ A stars Did MRI reduce the internal rot ...
... Differential-rotation decay Rotation of solar core is slow and uniform Rotation period has increased by factor of 10 during life Viscosity too small to reduce rotation homogeneously throughout the Sun Magnetic Ap stars rotate much slower than „normal“ A stars Did MRI reduce the internal rot ...
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.