Solar Lab
... attention to details. The daily rising and setting of the Sun was very important. At one moment in the distant past someone noticed that a vertical stick (called a gnomon) placed in the ground, would cast a shadow indicating the changing altitude of the Sun as well as tracking the Sun’s apparent eas ...
... attention to details. The daily rising and setting of the Sun was very important. At one moment in the distant past someone noticed that a vertical stick (called a gnomon) placed in the ground, would cast a shadow indicating the changing altitude of the Sun as well as tracking the Sun’s apparent eas ...
"The Probability and Effects of an Asteroid Impact with Earth"
... Tex = temperature derived using the Boltzmann equation to establish a match to the observed energy level populations of atoms. Tion = temperature derived using the Saha equation to establish a match to the observed ionization states of atoms. Tkin = temperature as inferred from the Maxwell-Boltzmann ...
... Tex = temperature derived using the Boltzmann equation to establish a match to the observed energy level populations of atoms. Tion = temperature derived using the Saha equation to establish a match to the observed ionization states of atoms. Tkin = temperature as inferred from the Maxwell-Boltzmann ...
CHAPTER 3 ELASTICITY AND FLEXURE
... Plate flexure theory in mountain belts is much more complicated due to layering. ...
... Plate flexure theory in mountain belts is much more complicated due to layering. ...
PYTS/ASTR 206 – The Sun
... Maunder minimum is a period without much sun-spot activity Corresponds to a period of anomalous climate in Europe and North-America Little ice age in Europe – droughts in N. America ...
... Maunder minimum is a period without much sun-spot activity Corresponds to a period of anomalous climate in Europe and North-America Little ice age in Europe – droughts in N. America ...
ASTRONOMY 301 PROBLEM SET NUMBER 3 DUE IN CLASS
... Read these instructions first. Print your name on each page of your answer sheets and staple them together. It is important to show the reasoning you used to solve the problem and any formulae you used and algebraic manipulation that you did. You are encouraged to work together to figure out the met ...
... Read these instructions first. Print your name on each page of your answer sheets and staple them together. It is important to show the reasoning you used to solve the problem and any formulae you used and algebraic manipulation that you did. You are encouraged to work together to figure out the met ...
Magnitude Scale and Distance Measurements
... and this give us a way to find the relative intensities of any two stars, based on their apparent magnitudes. Try a few examples: 1. The apparent magnitude of Spica is +0.98, and the apparent magnitude of Sirius A is -1.44. How many times brighter is Sirius A than Spica? 2. The apparent magnitude of ...
... and this give us a way to find the relative intensities of any two stars, based on their apparent magnitudes. Try a few examples: 1. The apparent magnitude of Spica is +0.98, and the apparent magnitude of Sirius A is -1.44. How many times brighter is Sirius A than Spica? 2. The apparent magnitude of ...
Parallax and Distance
... characteristics of these objects is a slow but steady process with each new measurement relying on observations and measurements that have come before. The first of these observations is simply the position of celestial objects and the corresponding local time. The second is a measurement of the dis ...
... characteristics of these objects is a slow but steady process with each new measurement relying on observations and measurements that have come before. The first of these observations is simply the position of celestial objects and the corresponding local time. The second is a measurement of the dis ...
1332Logarithms.pdf
... we note that as the x-values increased, the functional values increased, but the increase was relatively slow. The x-values increased from 1 9 to 81, but the y-values only increased from –1 to 2 respectively. In general, logarithmic functions increase if b > 1 and decrease if b < 1 . We recall that ...
... we note that as the x-values increased, the functional values increased, but the increase was relatively slow. The x-values increased from 1 9 to 81, but the y-values only increased from –1 to 2 respectively. In general, logarithmic functions increase if b > 1 and decrease if b < 1 . We recall that ...
The Sun - TeacherWeb
... you could go around Earth about eight times in one second. That’s really flying! But even going that fast, it takes energy leaving the Sun eight minutes to make the trip to Earth. Earth’s atmosphere and clouds reflect much of the radiant energy from the Sun before it reaches the surface. When radian ...
... you could go around Earth about eight times in one second. That’s really flying! But even going that fast, it takes energy leaving the Sun eight minutes to make the trip to Earth. Earth’s atmosphere and clouds reflect much of the radiant energy from the Sun before it reaches the surface. When radian ...
The Sun - Our Star
... This in turn requires 610 billion kg of hydrogen be transformed into 606 billion kg of helium. Solar lifetime: ~ 10 billion years But how do we confirm this from observations? ...
... This in turn requires 610 billion kg of hydrogen be transformed into 606 billion kg of helium. Solar lifetime: ~ 10 billion years But how do we confirm this from observations? ...
Distant future of the Sun and Earth revisited
... its zero-age MS start model, which is well within the range of commonly accepted values for the real age of the Sun and the solar system (e.g. Sackmann et al. 1993). Our model also confirms some well-established facts: (1) The MS-Sun has already undergone significant changes, i.e., the present solar ...
... its zero-age MS start model, which is well within the range of commonly accepted values for the real age of the Sun and the solar system (e.g. Sackmann et al. 1993). Our model also confirms some well-established facts: (1) The MS-Sun has already undergone significant changes, i.e., the present solar ...
GEK 1506 Heavenly Mathematics: Cultural Astronomy
... and is reversed for measurement until the direction of the sun by the shadow cast by the sunset. gnomon on the sundial. Sundials were made not only for timekeeping also as votive offerings placed in temples. The sundial separates the day-night period into 24 equal hours. However, the length of each ...
... and is reversed for measurement until the direction of the sun by the shadow cast by the sunset. gnomon on the sundial. Sundials were made not only for timekeeping also as votive offerings placed in temples. The sundial separates the day-night period into 24 equal hours. However, the length of each ...
Lecture 2
... Each day that it is clear at the end of class, we’ll go to the bridge just down from this room and look at the sky near the southern and eastern horizon (directions we can see from there) ...
... Each day that it is clear at the end of class, we’ll go to the bridge just down from this room and look at the sky near the southern and eastern horizon (directions we can see from there) ...
Distant future of the Sun and Earth revisited
... its zero-age MS start model, which is well within the range of commonly accepted values for the real age of the Sun and the solar system (e.g. Sackmann et al. 1993). Our model also confirms some well-established facts: (1) The MS-Sun has already undergone significant changes, i.e., the present solar ...
... its zero-age MS start model, which is well within the range of commonly accepted values for the real age of the Sun and the solar system (e.g. Sackmann et al. 1993). Our model also confirms some well-established facts: (1) The MS-Sun has already undergone significant changes, i.e., the present solar ...
Lecture notes on Coordinte systems
... • Earth or the observer is at the center of the Celestial sphere. • Dont need to know how far away objects are, just concerned about the angles subtended by these objects on the Earth. • Coordinates on a sphere – A sphere that is rotating rotates about some axis that passes through the center of the ...
... • Earth or the observer is at the center of the Celestial sphere. • Dont need to know how far away objects are, just concerned about the angles subtended by these objects on the Earth. • Coordinates on a sphere – A sphere that is rotating rotates about some axis that passes through the center of the ...
Slide 1 - Cloudfront.net
... temperature at the core. 3. The enormous pressure and heat of the sun change the structure of the atoms within the core. 4. Both the chromosphere and corona are normally not seen from Earth because of the brightness of the blue sky during the day. ...
... temperature at the core. 3. The enormous pressure and heat of the sun change the structure of the atoms within the core. 4. Both the chromosphere and corona are normally not seen from Earth because of the brightness of the blue sky during the day. ...
The Sun - Our Star - Sierra College Astronomy Home Page
... available, due October 26th, noon This week, Part II (in class exam, 50 pts.) Taken in 3rd hour (week of 10/22 to 10/25) Bring SCANTRON (882 form) and #2 pencil Based on “Review Questions” handout, available now! ...
... available, due October 26th, noon This week, Part II (in class exam, 50 pts.) Taken in 3rd hour (week of 10/22 to 10/25) Bring SCANTRON (882 form) and #2 pencil Based on “Review Questions” handout, available now! ...
The Sun, Our Star
... number about every 11 years Climate patterns on Earth may also follow the solar cycle Cause of the Solar Cycle The Sun undergoes differential rotation, 25 days at the equator and 30 at the poles This causes the Sun’s magnetic filed to “wind up” increasing solar activity (magnetic field “kink ...
... number about every 11 years Climate patterns on Earth may also follow the solar cycle Cause of the Solar Cycle The Sun undergoes differential rotation, 25 days at the equator and 30 at the poles This causes the Sun’s magnetic filed to “wind up” increasing solar activity (magnetic field “kink ...
comet2
... comet Ikeya-Seki broke into three pieces, but they had a combined tail which was very bright. From Japan the comet's perihelion was at local noon and it was visible in the daytime. Comet Lovejoy More recently Australian amateur astronomer Terry Lovejoy discovered a sungrazer which reached perihelion ...
... comet Ikeya-Seki broke into three pieces, but they had a combined tail which was very bright. From Japan the comet's perihelion was at local noon and it was visible in the daytime. Comet Lovejoy More recently Australian amateur astronomer Terry Lovejoy discovered a sungrazer which reached perihelion ...
prime meridian
... clock on board that told you what time it was back at the prime meridian at Greenwich, England (or at any other place with a known longitude). When the sun reached its highest point above your ship, you knew it was 12 p.m. your time. Each hour of difference between your time (12 p.m.) and the time b ...
... clock on board that told you what time it was back at the prime meridian at Greenwich, England (or at any other place with a known longitude). When the sun reached its highest point above your ship, you knew it was 12 p.m. your time. Each hour of difference between your time (12 p.m.) and the time b ...
Tutorial on Earth/Sun Relations and Seasons
... the sun. We know that can't be the case, because the seasons are opposite in the Northern and Southern Hemispheres. However, if we look at the Earth's orbit closely, we find that it is not exactly circular. Rather, it is an ellipse, which is an oval shape, or a very slightly flattened circle. The su ...
... the sun. We know that can't be the case, because the seasons are opposite in the Northern and Southern Hemispheres. However, if we look at the Earth's orbit closely, we find that it is not exactly circular. Rather, it is an ellipse, which is an oval shape, or a very slightly flattened circle. The su ...
The celestial sphere, the coordinates system, seasons, phases of
... (Or the Earth closer to the Sun or a combination of both effects), the Moon disk will not completely cover the disk of the Sun. It leaves a ring around the Sun. In that case, the umbra of the Moon’s shadow will not touch the surface of Earth. The observer will see a bright ring (the Sun) around the ...
... (Or the Earth closer to the Sun or a combination of both effects), the Moon disk will not completely cover the disk of the Sun. It leaves a ring around the Sun. In that case, the umbra of the Moon’s shadow will not touch the surface of Earth. The observer will see a bright ring (the Sun) around the ...
Some Facts about Our Sun Quick Hits – 1. The Sun is a
... star. Our Sun is a yellow star. Some refer to our Sun as a yellow dwarf, owing to its smallness relative to other stars. Further cooling changes a yellow star into a red one. By this red phase, the star would have expanded until it collapses from the inward force of its own gravity. That means, the ...
... star. Our Sun is a yellow star. Some refer to our Sun as a yellow dwarf, owing to its smallness relative to other stars. Further cooling changes a yellow star into a red one. By this red phase, the star would have expanded until it collapses from the inward force of its own gravity. That means, the ...
New Suns in the Cosmos?
... team,1 which were taken on an hour-by-hour basis and have an internal precision of 2.0 × 10−5, we selected the Sun in two phases: active (cycle 23) and quiet (cycle 24) as shown in Figure. 1(b). The time windows in each phase of solar activity were chosen because of their similarity to the CoROT dat ...
... team,1 which were taken on an hour-by-hour basis and have an internal precision of 2.0 × 10−5, we selected the Sun in two phases: active (cycle 23) and quiet (cycle 24) as shown in Figure. 1(b). The time windows in each phase of solar activity were chosen because of their similarity to the CoROT dat ...
Name: 1) Earth`s troposphere, hydrosphere, and lithosphere contain
... campsite 1 mile directly east of their original campsite. On the given map, place another campsite symbol, , to indicate the location of their second campsite. (b) The students decided to take a different route home to avoid riding their bicycles up the steep hill. Plan a return route that will take ...
... campsite 1 mile directly east of their original campsite. On the given map, place another campsite symbol, , to indicate the location of their second campsite. (b) The students decided to take a different route home to avoid riding their bicycles up the steep hill. Plan a return route that will take ...
Equation of time
The equation of time describes the discrepancy between two kinds of solar time. These are apparent solar time, which directly tracks the motion of the sun, and mean solar time, which tracks a fictitious ""mean"" sun with noons 24 hours apart. Apparent (or true) solar time can be obtained by measurement of the current position (hour angle) of the Sun, or indicated (with limited accuracy) by a sundial. Mean solar time, for the same place, would be the time indicated by a steady clock set so that over the year its differences from apparent solar time average to zero.The equation of time is the east or west component of the analemma, a curve representing the angular offset of the Sun from its mean position on the celestial sphere as viewed from Earth. The equation of time values for each day of the year, compiled by astronomical observatories, were widely listed in almanacs and ephemerides.