here - North Central Kansas Astronomical Society
... Kepler 1627 makes first prediction of transits for 1631 & 1639. 1631 at night in Europe. 1639 Jeremiah Horrocks in England corrected, somewhat, Kepler’s calculations to find 3 pm Dec. 1639. He and his friend Crabtree observed it. ...
... Kepler 1627 makes first prediction of transits for 1631 & 1639. 1631 at night in Europe. 1639 Jeremiah Horrocks in England corrected, somewhat, Kepler’s calculations to find 3 pm Dec. 1639. He and his friend Crabtree observed it. ...
ASTR_CGT_TheSun_v01x
... Earth, and residual material left from the formation of the Solar System. Humankind’s need to explore continues to lead to the development of knowledge and understanding of the nature of the Universe. ...
... Earth, and residual material left from the formation of the Solar System. Humankind’s need to explore continues to lead to the development of knowledge and understanding of the nature of the Universe. ...
Final Exam Practice Part I
... 26. When a massive, dying star blows itself apart, if the remaining mass is less than three times the mass of the sun, the leftover material will form a ______. 28. Cosmologists think the material in our bodies was once part of a massive star. Explain how it went from a star to our bodies. 29. Descr ...
... 26. When a massive, dying star blows itself apart, if the remaining mass is less than three times the mass of the sun, the leftover material will form a ______. 28. Cosmologists think the material in our bodies was once part of a massive star. Explain how it went from a star to our bodies. 29. Descr ...
Activity 12: Solar System
... If you look up the word “solar” in your dictionary, you’ll find its basic definition reads something like: “of the sun,” or “relating to the sun.” System is defined as: “a set of things or parts forming a whole.” When you consider the meanings of these words, there is indication that the sun plays a ...
... If you look up the word “solar” in your dictionary, you’ll find its basic definition reads something like: “of the sun,” or “relating to the sun.” System is defined as: “a set of things or parts forming a whole.” When you consider the meanings of these words, there is indication that the sun plays a ...
The Time of Day
... 0.0014 second each century. Over a year the 0.002 second add up to most of a second: 365 × 0.002 ≈ 0.7 second each year. This means that an accurate clock set at midnight on New Year’s Eve would signal the beginning of the next new year almost 1 second too early. By the year 2100, an accurate clock ...
... 0.0014 second each century. Over a year the 0.002 second add up to most of a second: 365 × 0.002 ≈ 0.7 second each year. This means that an accurate clock set at midnight on New Year’s Eve would signal the beginning of the next new year almost 1 second too early. By the year 2100, an accurate clock ...
Announcements
... energy loss --> core heats up --> pressure increases --> pressure greater than gravity --> core expands --> cools (work against gravity) --> energy generation decreases ...
... energy loss --> core heats up --> pressure increases --> pressure greater than gravity --> core expands --> cools (work against gravity) --> energy generation decreases ...
Sky Science Notes
... moon from Earth. This is called a waxing crescent. About a week after the new moon enters the first quarter and it is a crescent shaped half circle. Between the First Quarter and the full moon we see over half the face of the moon illuminated. We call this phase a waxing gibbous. A week after the fi ...
... moon from Earth. This is called a waxing crescent. About a week after the new moon enters the first quarter and it is a crescent shaped half circle. Between the First Quarter and the full moon we see over half the face of the moon illuminated. We call this phase a waxing gibbous. A week after the fi ...
Astronomy Comprehensive Test
... of its revolution. If the axis is pointing toward the sun as in the picture, what would occur at point X when the planet turns once on its axis? a. the point would be in twilight for the full rotation b. the point would be in darkness for the complete rotation of the planet c. the point would be in ...
... of its revolution. If the axis is pointing toward the sun as in the picture, what would occur at point X when the planet turns once on its axis? a. the point would be in twilight for the full rotation b. the point would be in darkness for the complete rotation of the planet c. the point would be in ...
Sample pages 1 PDF
... Angular diameter—the apparent size of a celestial object, measured in degrees, minutes, and/or seconds, as seen from Earth. OK, let’s define the three words in that sentence. A degree is 1/360 of a circle. Said another way, a circle contains 360°. A minute (short for minute of arc or arcminute) is 1 ...
... Angular diameter—the apparent size of a celestial object, measured in degrees, minutes, and/or seconds, as seen from Earth. OK, let’s define the three words in that sentence. A degree is 1/360 of a circle. Said another way, a circle contains 360°. A minute (short for minute of arc or arcminute) is 1 ...
Genetics: The Science of Heredity
... 14. The times when day and night are of equal length are called ____________________. 15. If you are in a car that stops suddenly, your body keeps moving because it has ____________________. ...
... 14. The times when day and night are of equal length are called ____________________. 15. If you are in a car that stops suddenly, your body keeps moving because it has ____________________. ...
Genetics: The Science of Heredity
... a. Like the moon, the stars move around Earth. b. As Earth revolves around the sun, we have a different view of the stars. c. As the Earth rotates on its axis, we see different parts of the sky. d. Just as the seasons on Earth change, so do the seasons on stars. ...
... a. Like the moon, the stars move around Earth. b. As Earth revolves around the sun, we have a different view of the stars. c. As the Earth rotates on its axis, we see different parts of the sky. d. Just as the seasons on Earth change, so do the seasons on stars. ...
lecture3
... The beginning of the modern age in Astronomy began with Nicholas Copernicus (1473 – 1543), a cleric with independent fortune. Copernicus suggested that the Sun is at the center of the universe (solar system), and that the Earth rotates on its axis once a day to give the apparent daily turn of the st ...
... The beginning of the modern age in Astronomy began with Nicholas Copernicus (1473 – 1543), a cleric with independent fortune. Copernicus suggested that the Sun is at the center of the universe (solar system), and that the Earth rotates on its axis once a day to give the apparent daily turn of the st ...
An Introduction to Astronomy and Cosmology
... changed, 22 leap seconds have had to be added, about one every 18 months, but there were none between 1998 and 2005 showing the slowdown is not particularly regular. Leap seconds are somewhat of a nuisance for systems such as the Global Positioning System (GPS) Network and there is pressure to do aw ...
... changed, 22 leap seconds have had to be added, about one every 18 months, but there were none between 1998 and 2005 showing the slowdown is not particularly regular. Leap seconds are somewhat of a nuisance for systems such as the Global Positioning System (GPS) Network and there is pressure to do aw ...
Chapter8
... look at a star. The chapters that follow will discuss the many kinds of stars that fill the heavens, but this chapter shows us that each of them is both complex and beautiful; each is a sun. ...
... look at a star. The chapters that follow will discuss the many kinds of stars that fill the heavens, but this chapter shows us that each of them is both complex and beautiful; each is a sun. ...
Time, Day, Month, and the Moon
... Most of the world observes DST, with laws and regulations dating back to the early 1900 s. ...
... Most of the world observes DST, with laws and regulations dating back to the early 1900 s. ...
Lecture 3, PPT version
... “Spica” was in the same location in the sky. Notice how Venus has moved much farther than Jupiter over this period of time! ...
... “Spica” was in the same location in the sky. Notice how Venus has moved much farther than Jupiter over this period of time! ...
Science Model answer Revision sheet Q3
... 1-Multiple Choice: 1. Which tool measures wind direction? A. ...
... 1-Multiple Choice: 1. Which tool measures wind direction? A. ...
Astronomy Final Study Guide - With Answers!!– Name: **This will be
... through its fuel. Big stars burn through all of their fuel quickly, which causes them to have a short life. 27. Why won’t the Sun end in a huge explosion like a supernova? The sun does not have enough mass to end as a supernova. It will end as a white dwarf and then a black dwarf. Only very massive ...
... through its fuel. Big stars burn through all of their fuel quickly, which causes them to have a short life. 27. Why won’t the Sun end in a huge explosion like a supernova? The sun does not have enough mass to end as a supernova. It will end as a white dwarf and then a black dwarf. Only very massive ...
9.1: THE SUN IN BULK PHYS 1401: Descriptive Astronomy Notes
... ✦ 600 million tons of mass per second are converted ✦ At that rate, the sun will only last another 5 billion years Observations of Solar Neutrinos ✦ Neutrinos are magic! ✦ No they aren't. But they are evidence of fusion at the sun's core ✦ Neutrinos do not interact with anything (well, hardy anythin ...
... ✦ 600 million tons of mass per second are converted ✦ At that rate, the sun will only last another 5 billion years Observations of Solar Neutrinos ✦ Neutrinos are magic! ✦ No they aren't. But they are evidence of fusion at the sun's core ✦ Neutrinos do not interact with anything (well, hardy anythin ...
Heliocentric model
... • Some of the simplest planetary observations you can make are their positions relative to the Earth and the Sun – the planetary configuration – Inferior conjunction – between us and the Sun (a transit occurs when it is silhouetted against the Sun’s bright ...
... • Some of the simplest planetary observations you can make are their positions relative to the Earth and the Sun – the planetary configuration – Inferior conjunction – between us and the Sun (a transit occurs when it is silhouetted against the Sun’s bright ...
Reading exercise
... no air or water. Plants and animals can’t live there either. Astronauts first landed on the Moon in 1969. After that, there were six more trips to the Moon. They brought back Moon rocks, which scientists are still studying. There are holes, or craters, all over the Moon’s surface. Scientists believe ...
... no air or water. Plants and animals can’t live there either. Astronauts first landed on the Moon in 1969. After that, there were six more trips to the Moon. They brought back Moon rocks, which scientists are still studying. There are holes, or craters, all over the Moon’s surface. Scientists believe ...
Lecture 2 ppt - Physics 1025 Introductory Astronomy
... look into space creates the illusion that Earth is surrounded by a celestial sphere. In reality, stars that appear very close together in our sky may actually lie at very different distances from Earth. ...
... look into space creates the illusion that Earth is surrounded by a celestial sphere. In reality, stars that appear very close together in our sky may actually lie at very different distances from Earth. ...
Return both exam and scantron sheet when you
... 10. The spectral class of a star provides information about its (a) mass. (b) luminosity. (c) temperature. (d) chemical composition. 11. If the energy of a photon is not equal to the energy difference between the energy level occupied by an electron and an empty higher energy level, the photon (a) w ...
... 10. The spectral class of a star provides information about its (a) mass. (b) luminosity. (c) temperature. (d) chemical composition. 11. If the energy of a photon is not equal to the energy difference between the energy level occupied by an electron and an empty higher energy level, the photon (a) w ...