ASTR-100 - Jiri Brezina Teaching
... Tidal heating slows the bodies' rotation until it becomes tidally locked, and the tidal bulge does not change any more. Two (from many) examples of tidal heating: Moon’s rotation, originally faster than now (the Moon showed all sides earlier), has been tidally locked to the Earth since 3.5 bill. y. ...
... Tidal heating slows the bodies' rotation until it becomes tidally locked, and the tidal bulge does not change any more. Two (from many) examples of tidal heating: Moon’s rotation, originally faster than now (the Moon showed all sides earlier), has been tidally locked to the Earth since 3.5 bill. y. ...
WSN 42 (2016) 132-142
... different size, different amounts of starlight is bent. Thus power stellar light that the eye eats, varies and it seems that flickers stars. Stars according to their spectral characteristics to be classified. Decaying it would stellar spectrum of radiation of different wavelengths of radiation eleme ...
... different size, different amounts of starlight is bent. Thus power stellar light that the eye eats, varies and it seems that flickers stars. Stars according to their spectral characteristics to be classified. Decaying it would stellar spectrum of radiation of different wavelengths of radiation eleme ...
Which Objects Represent the Eight Planets in Our
... new, scientifically accepted definition of the word, “planet”. According to these scientists, a planet must have three characteristics: a) It must orbit a Star (Sun) b) It must have enough mass for its self-gravity to form it into a spherical shape c) It must have “cleared” nearby objects away from ...
... new, scientifically accepted definition of the word, “planet”. According to these scientists, a planet must have three characteristics: a) It must orbit a Star (Sun) b) It must have enough mass for its self-gravity to form it into a spherical shape c) It must have “cleared” nearby objects away from ...
Document
... - Estimated 1M years old - Most stars clouded from view by dust - Only 4-5 stars visible with small scope ...
... - Estimated 1M years old - Most stars clouded from view by dust - Only 4-5 stars visible with small scope ...
Lecture 7 Gravity and satellites
... R2 F is the gravitational force acting on each body (N) m1 and m2 are the masses of the objects (kg) R is the distance between the centres of the objects (m) ...
... R2 F is the gravitational force acting on each body (N) m1 and m2 are the masses of the objects (kg) R is the distance between the centres of the objects (m) ...
study-notes-for-2016-2017-1st-qtr-exam
... Day and Night occur on Earth because of the rotation of the Earth on its axis. 1 Earth day lasts 24 hours. The length of daylight and dark vary depending on the season and a person’s location on Earth. Cause of Seasons Seasons on Earth are cause by the tilt of the Earth on its axis and the Earth’s r ...
... Day and Night occur on Earth because of the rotation of the Earth on its axis. 1 Earth day lasts 24 hours. The length of daylight and dark vary depending on the season and a person’s location on Earth. Cause of Seasons Seasons on Earth are cause by the tilt of the Earth on its axis and the Earth’s r ...
Ch6-2014-P
... .The speed of the tread of the tire relative to the axle is v , the same as if the car were jacked up. Thus the car moves forward at linear velocity v = rω , where r is the tire radius. A larger angular velocity for the tire means a greater velocity for the car. ...
... .The speed of the tread of the tire relative to the axle is v , the same as if the car were jacked up. Thus the car moves forward at linear velocity v = rω , where r is the tire radius. A larger angular velocity for the tire means a greater velocity for the car. ...
Unit 1
... estimate their distance from the Sun • The model was called Kapteyn’s Universe, as the existence of other galaxies was unknown! ...
... estimate their distance from the Sun • The model was called Kapteyn’s Universe, as the existence of other galaxies was unknown! ...
Lecture 4: Telescopes
... Light Gathering Power - proportional to the square of the size of the mirror (area of the light bucket) Limiting magnitude for a telescope is m = 2.7 + 5 log D Where D is telescope aperture in millimeters. Resolving Power - Smallest angular separation that the telescope can resolve 4.56 / diameter o ...
... Light Gathering Power - proportional to the square of the size of the mirror (area of the light bucket) Limiting magnitude for a telescope is m = 2.7 + 5 log D Where D is telescope aperture in millimeters. Resolving Power - Smallest angular separation that the telescope can resolve 4.56 / diameter o ...
Classifying the Spectra of Stars:
... M-stars are very cool and typically have broad features. They usually have strong sodium but it’s broader than it is in a K star. M-stars are a complicated mess that often has very large areas of absorption due to molecules in their atmospheres. We will not be dealing with this spectral type. ...
... M-stars are very cool and typically have broad features. They usually have strong sodium but it’s broader than it is in a K star. M-stars are a complicated mess that often has very large areas of absorption due to molecules in their atmospheres. We will not be dealing with this spectral type. ...
Tropical Zodiac versus Sidereal Zodiac
... guess what? All the astronomy sites clearly said that the vernal equinox is moving back, it has moved to the constellation Pisces from Aries, and is slowly approaching Aquarius!! So even modern astronomy says that Tropical Zodiac is wrong. In fact, knowledgeable people, who disapprove astrology for ...
... guess what? All the astronomy sites clearly said that the vernal equinox is moving back, it has moved to the constellation Pisces from Aries, and is slowly approaching Aquarius!! So even modern astronomy says that Tropical Zodiac is wrong. In fact, knowledgeable people, who disapprove astrology for ...
The Sun: Our Extraordinary Ordinary Star
... particles lasting less than an hour. • Coronal Mass Ejections – huge balloon-shaped volumes of high energy gas – Trillions of tons ...
... particles lasting less than an hour. • Coronal Mass Ejections – huge balloon-shaped volumes of high energy gas – Trillions of tons ...
Powerpoint - Physics and Astronomy
... In a young star cluster, when more massive stars are evolving into red giants, the least massive stars are a) ending their main-sequence stage. b) also evolving into red giants. c) forming planetary nebulae. d) barely starting to fuse hydrogen. e) starting the nova stage. Explanation: More massive s ...
... In a young star cluster, when more massive stars are evolving into red giants, the least massive stars are a) ending their main-sequence stage. b) also evolving into red giants. c) forming planetary nebulae. d) barely starting to fuse hydrogen. e) starting the nova stage. Explanation: More massive s ...
Extragalactic Distances from Planetary Nebulae
... Elliptical galaxies do not have many (any?) 2 M main sequence stars. But they do have large numbers of 1 M stars. If some are in close binary systems which coalesce on the main sequence, the product may evolve into an [O III]-bright planetary. The ratio of bright planetaries to blue stragglers is ...
... Elliptical galaxies do not have many (any?) 2 M main sequence stars. But they do have large numbers of 1 M stars. If some are in close binary systems which coalesce on the main sequence, the product may evolve into an [O III]-bright planetary. The ratio of bright planetaries to blue stragglers is ...
THE CONSTELLATIONS OF THE ZODIAC G. Iafrate, M. Ramella
... ends up being the first known celestial coordinates system. The Babylonian calendar assigned each month to a sign, beginning with the position of the Sun at vernal equinox (March 21) which, at the time, was in the Aries constellation. For this reason the first constellation of the zodiac is still ca ...
... ends up being the first known celestial coordinates system. The Babylonian calendar assigned each month to a sign, beginning with the position of the Sun at vernal equinox (March 21) which, at the time, was in the Aries constellation. For this reason the first constellation of the zodiac is still ca ...
THE CONSTELLATIONS OF THE ZODIAC
... ends up being the first known celestial coordinates system. The Babylonian calendar assigned each month to a sign, beginning with the position of the Sun at vernal equinox (March 21) which, at the time, was in the Aries constellation. For this reason the first constellation of the zodiac is still ca ...
... ends up being the first known celestial coordinates system. The Babylonian calendar assigned each month to a sign, beginning with the position of the Sun at vernal equinox (March 21) which, at the time, was in the Aries constellation. For this reason the first constellation of the zodiac is still ca ...
vert strand 6
... Relate the apparent east-to-west changes in the positions of the Sun, other stars, and planets in the sky over the course of a day to Earth’s counterclockwise rotation about its axis Describe the pattern that can be observed in the changes in number of hours of visible sunlight, and the time and loc ...
... Relate the apparent east-to-west changes in the positions of the Sun, other stars, and planets in the sky over the course of a day to Earth’s counterclockwise rotation about its axis Describe the pattern that can be observed in the changes in number of hours of visible sunlight, and the time and loc ...
Virgo constellation
... will see Virgo’s ear of grain, Spica. It looks like one star, but actually is a binary star with both stars larger and hotter than our sun. Their mutual gravity distorts each star into an egg shape, with the pointed ends facing each other as they whirl around completing a single orbit in four days. ...
... will see Virgo’s ear of grain, Spica. It looks like one star, but actually is a binary star with both stars larger and hotter than our sun. Their mutual gravity distorts each star into an egg shape, with the pointed ends facing each other as they whirl around completing a single orbit in four days. ...
Astronomy (stars, galaxies and the Universe)
... All stars are created from the gases in a nebula When the contracting gas and dust from a nebula become so dense and hot that nuclear fusion begins, the protostar begins to shine When a star begins to run out of fuel, its core shrinks and its outer portion expands The evolutionary path of a star dep ...
... All stars are created from the gases in a nebula When the contracting gas and dust from a nebula become so dense and hot that nuclear fusion begins, the protostar begins to shine When a star begins to run out of fuel, its core shrinks and its outer portion expands The evolutionary path of a star dep ...
Powerpoint for today
... Temperature of background in opposite directions nearly identical. Yet even light hasn't had time to travel from A to B (only A to Earth), so A can know nothing about conditions at B, and vice versa. So why are A and B almost identical? This is “horizon problem”. ...
... Temperature of background in opposite directions nearly identical. Yet even light hasn't had time to travel from A to B (only A to Earth), so A can know nothing about conditions at B, and vice versa. So why are A and B almost identical? This is “horizon problem”. ...
Aquarius (constellation)
Aquarius is a constellation of the zodiac, situated between Capricornus and Pisces. Its name is Latin for ""water-carrier"" or ""cup-carrier"", and its symbol is 20px (Unicode ♒), a representation of water.Aquarius is one of the oldest of the recognized constellations along the zodiac (the sun's apparent path). It was one of the 48 constellations listed by the 2nd century AD astronomer Ptolemy, and it remains one of the 88 modern constellations. It is found in a region often called the Sea due to its profusion of constellations with watery associations such as Cetus the whale, Pisces the fish, and Eridanus the river.