Earth - Harding University
... • A “misfit” among the planets: far from Sun like large jovian planets, but much smaller than any terrestrial planet. • Comet-like composition (ices, rock) and orbit (eccentric, inclined to ecliptic plane, long -- 248 years). • Its moon Charon is half Pluto’s size in diameter • Best current photo ab ...
... • A “misfit” among the planets: far from Sun like large jovian planets, but much smaller than any terrestrial planet. • Comet-like composition (ices, rock) and orbit (eccentric, inclined to ecliptic plane, long -- 248 years). • Its moon Charon is half Pluto’s size in diameter • Best current photo ab ...
Sky Science Notes
... the same side towards Earth. The moon rotates on its axis very slowly once a month at the same time as it is revolving around the Earth, once in 27 1/3 days. This is why we never seen the dark side of the moon. The moon shows different phases as it revolves around Earth. Half the moon is always in t ...
... the same side towards Earth. The moon rotates on its axis very slowly once a month at the same time as it is revolving around the Earth, once in 27 1/3 days. This is why we never seen the dark side of the moon. The moon shows different phases as it revolves around Earth. Half the moon is always in t ...
class 4, S11 (ch. 2c and 3)Jan20
... “lap” another planet (or when Mercury or Venus lap us) • But very difficult to explain if you think that Earth is the center of the universe! • In fact, ancients considered but rejected the correct explanation… ...
... “lap” another planet (or when Mercury or Venus lap us) • But very difficult to explain if you think that Earth is the center of the universe! • In fact, ancients considered but rejected the correct explanation… ...
2011_JCB_SS_Key_1_
... space around the Sun. The Moon must move another two days (29.5 vs 27.3 days), to line up between the Sun, and Earth’s new position in space. ...
... space around the Sun. The Moon must move another two days (29.5 vs 27.3 days), to line up between the Sun, and Earth’s new position in space. ...
Kepler`s Second Law
... 2.3b illustrate Kepler’s second law of planetary motion with the aid of a diagram 2.3c demonstrate an understanding of Kepler’s third law relating planetary distances to orbital periods and perform simple calculations using the formula: T 2 = R3 where T is in years and R is in AU ...
... 2.3b illustrate Kepler’s second law of planetary motion with the aid of a diagram 2.3c demonstrate an understanding of Kepler’s third law relating planetary distances to orbital periods and perform simple calculations using the formula: T 2 = R3 where T is in years and R is in AU ...
gravity
... b. The Moon is farther from the Sun. c. The Earth less dense than the Moon. d. The Moon’s radius is greater than that of Earth’s. C1 ...
... b. The Moon is farther from the Sun. c. The Earth less dense than the Moon. d. The Moon’s radius is greater than that of Earth’s. C1 ...
Astronomy - Educator Pages
... There are important areas of the solar system to know about. -The Asteroid Belt – the area between Mars and Jupiter where most of the solar systems asteroids and meteoroids orbit the sun. The Kuiper Belt- area outside the planet Neptune, containing several dwarf planets as well as smaller objects, ...
... There are important areas of the solar system to know about. -The Asteroid Belt – the area between Mars and Jupiter where most of the solar systems asteroids and meteoroids orbit the sun. The Kuiper Belt- area outside the planet Neptune, containing several dwarf planets as well as smaller objects, ...
the sun moon and the earth!
... What is the distance from the Sun to the Moon? 238,857 miles. What is the distance from the Sun to the Earth? 93,000,000 miles. How do the characteristics of the Sun affect life on the Sun? The Sun is so hot that it is impossible for there to be a living person on the Sun. Explain how day and night ...
... What is the distance from the Sun to the Moon? 238,857 miles. What is the distance from the Sun to the Earth? 93,000,000 miles. How do the characteristics of the Sun affect life on the Sun? The Sun is so hot that it is impossible for there to be a living person on the Sun. Explain how day and night ...
Basics of Atmospheres and their Formation
... • Hydrogen compounds (mainly water) able to form snow flakes, then snow balls, and hang together to make self-gravitating proto planets • Since hydrogen (H) is the vast majority of ALL the mass in the solar nebula disk, being able to hang on to H and He means MASSIVE planets beyond the Frost Line ...
... • Hydrogen compounds (mainly water) able to form snow flakes, then snow balls, and hang together to make self-gravitating proto planets • Since hydrogen (H) is the vast majority of ALL the mass in the solar nebula disk, being able to hang on to H and He means MASSIVE planets beyond the Frost Line ...
Heliocentric model
... – Greatest elongation – for Venus and Mercury, when they are at their greatest angular separation from the Sun. Can be either eastern or western ...
... – Greatest elongation – for Venus and Mercury, when they are at their greatest angular separation from the Sun. Can be either eastern or western ...
Observational Constraints The Nebular Hypothesis
... 1. Small dust grains grow into larger—but still relatively small—asteroid-like bodies called planetesimals. 2. Planetesimals repeated crash into each other, resulting in increasingly large planetesimals. Some of these objects grow large enough to be called protoplanets. 3. As the protoplanets grow t ...
... 1. Small dust grains grow into larger—but still relatively small—asteroid-like bodies called planetesimals. 2. Planetesimals repeated crash into each other, resulting in increasingly large planetesimals. Some of these objects grow large enough to be called protoplanets. 3. As the protoplanets grow t ...
Lecture 23 Slides
... Most extrasolar planets cannot be observed directly in pictures for two reasons: • The angle between a star and its planets, as seen from Earth, is too small to resolve with our biggest telescopes. • A star like the Sun would be a billion times brighter than the light reflected off its planets. ...
... Most extrasolar planets cannot be observed directly in pictures for two reasons: • The angle between a star and its planets, as seen from Earth, is too small to resolve with our biggest telescopes. • A star like the Sun would be a billion times brighter than the light reflected off its planets. ...
My notes: Lecture #1
... - the further away the planet the slower (remember Redshift demo Do an example: Jupiter 5.2AU then P2 = 5.23 therefore P=11.86 years !!! ...
... - the further away the planet the slower (remember Redshift demo Do an example: Jupiter 5.2AU then P2 = 5.23 therefore P=11.86 years !!! ...
The Basics of the Universe
... territory.’ When you add ‘life’ to it, it becomes ‘aliens,’ which almost certainly exist. It is not a matter of belief, but instead of scientific probability. In the vastness of space, it is almost inevitable that another planet like ours exists. Astronomers have already discovered many planets orbi ...
... territory.’ When you add ‘life’ to it, it becomes ‘aliens,’ which almost certainly exist. It is not a matter of belief, but instead of scientific probability. In the vastness of space, it is almost inevitable that another planet like ours exists. Astronomers have already discovered many planets orbi ...
Astro 1010 Planetary Astronomy Sample Questions for Exam 2
... a) the change in observed wavelength of a wave when the source is moving with respect to the observer. b) the change in the observed intensity of a wave when the source is moving with respect to the observer. c) the change in the observed speed of light when the source is moving with respect to the ...
... a) the change in observed wavelength of a wave when the source is moving with respect to the observer. b) the change in the observed intensity of a wave when the source is moving with respect to the observer. c) the change in the observed speed of light when the source is moving with respect to the ...
History of Astronomy
... other scientists began to make strides toward popularizing the heliocentric model • Galileo was the first to use a telescope to make detailed observations of the sky • Though he did not invent the telescope, he made many working prototypes and trained them on a variety of celestial bodies Galileo Ga ...
... other scientists began to make strides toward popularizing the heliocentric model • Galileo was the first to use a telescope to make detailed observations of the sky • Though he did not invent the telescope, he made many working prototypes and trained them on a variety of celestial bodies Galileo Ga ...
Which exoEarths should we search for life
... revealed debris discs around a wide variety of tem, the Moon is unusually large and massive stars. The discs span a wide range of masses, and relative to its host planet. It is thought to have occur at a large variety of distances from their formed during the latter stages of the Earth’s hosts. Note ...
... revealed debris discs around a wide variety of tem, the Moon is unusually large and massive stars. The discs span a wide range of masses, and relative to its host planet. It is thought to have occur at a large variety of distances from their formed during the latter stages of the Earth’s hosts. Note ...
Studying Planets in the Solar System
... Definition: A meteor, which is a small particle of matter from the solar system, that reaches the surface of the Earth without being completely vaporized. Context: A shooting star that lands on Earth is known as a meteorite. planet Definition: Any of the large bodies that revolve around the sun in t ...
... Definition: A meteor, which is a small particle of matter from the solar system, that reaches the surface of the Earth without being completely vaporized. Context: A shooting star that lands on Earth is known as a meteorite. planet Definition: Any of the large bodies that revolve around the sun in t ...
Distant of Moon
... At the time of a Half Moon, the Moon's angle from the Sun is less than a quadrant (90°) by 1/30 of a quadrant [that is, the angle is 90° 3° = 87°]. The breadth of the Earth's shadow when the Moon passes through the shadow during a lunar eclipse is two Moons. Both the Moon and the Sun subtend 1/15 of ...
... At the time of a Half Moon, the Moon's angle from the Sun is less than a quadrant (90°) by 1/30 of a quadrant [that is, the angle is 90° 3° = 87°]. The breadth of the Earth's shadow when the Moon passes through the shadow during a lunar eclipse is two Moons. Both the Moon and the Sun subtend 1/15 of ...
SCI 103
... B) Only the planets whose orbits are larger in size than that of the Earth exhibit retrograde motion C) The planets orbit roughly in the ecliptic plane. D) Only planets whose orbits are smaller in size than that of the Earth exhibit a new phase for observers on or near the Earth. E) The planets rise ...
... B) Only the planets whose orbits are larger in size than that of the Earth exhibit retrograde motion C) The planets orbit roughly in the ecliptic plane. D) Only planets whose orbits are smaller in size than that of the Earth exhibit a new phase for observers on or near the Earth. E) The planets rise ...
Measuring the Sky - Physics and Astronomy and more!
... January 1, 1801 he finds a faint object which, by the following night, had moved First thought he had found a comet But comets follow highly elliptical paths The little guy’s orbit was nearly circular AND its orbit was 2.7AU! ...
... January 1, 1801 he finds a faint object which, by the following night, had moved First thought he had found a comet But comets follow highly elliptical paths The little guy’s orbit was nearly circular AND its orbit was 2.7AU! ...
december 2010 - Holt Planetarium
... Season’s greetings to one and all. There are a couple of interesting astronomical events this month. On December 21 there is a total eclipse of the Moon. The total phase of this eclipse lasts for just over 72 minutes, with the partial umbral eclipse spanning almost 3.5 hours. All stages of the total ...
... Season’s greetings to one and all. There are a couple of interesting astronomical events this month. On December 21 there is a total eclipse of the Moon. The total phase of this eclipse lasts for just over 72 minutes, with the partial umbral eclipse spanning almost 3.5 hours. All stages of the total ...
Satellite system (astronomy)
A satellite system is a set of gravitationally bound objects in orbit around a planetary mass object or minor planet. Generally speaking, it is a set of natural satellites (moons), although such systems may also consist of bodies such as circumplanetary disks, ring systems, moonlets, minor-planet moons and artificial satellites any of which may themselves have satellite systems of their own. Some satellite systems have complex interactions with both their parent and other moons, including magnetic, tidal, atmospheric and orbital interactions such as orbital resonances and libration. Individually major satellite objects are designated in Roman numerals. Satellite systems are referred to either by the possessive adjectives of their primary (e.g. ""Jovian system""), or less commonly by the name of their primary (e.g. ""Jupiter system""). Where only one satellite is known, or it is a binary orbiting a common centre of gravity, it may be referred to using the hyphenated names of the primary and major satellite (e.g. the ""Earth-Moon system"").Many Solar System objects are known to possess satellite systems, though their origin is still unclear. Notable examples include the largest satellite system, the Jovian system, with 67 known moons (including the large Galilean moons) and the Saturnian System with 62 known moons (and the most visible ring system in the Solar System). Both satellite systems are large and diverse. In fact all of the giant planets of the Solar System possess large satellite systems as well as planetary rings, and it is inferred that this is a general pattern. Several objects farther from the Sun also have satellite systems consisting of multiple moons, including the complex Plutonian system where multiple objects orbit a common center of mass, as well as many asteroids and plutinos. Apart from the Earth-Moon system and Mars' system of two tiny natural satellites, the other terrestrial planets are generally not considered satellite systems, although some have been orbited by artificial satellites originating from Earth.Little is known of satellite systems beyond the Solar System, although it is inferred that natural satellites are common. J1407b is an example of an extrasolar satellite system. It is also theorised that Rogue planets ejected from their planetary system could retain a system of satellites.