Astronomy
... b. Plan and participate in a three-hour observation session that includes using binoculars or a telescope. List the celestial objects you want to observe, and find each on a star chart or in a guidebook. _________________________________ ____________________________________________________________ ...
... b. Plan and participate in a three-hour observation session that includes using binoculars or a telescope. List the celestial objects you want to observe, and find each on a star chart or in a guidebook. _________________________________ ____________________________________________________________ ...
Moon
... many lunar months are there in a year? We found that there are 29.5 days between full moons. Unlike the length of a day, this does not change appreciably from month to month. Note that it is just a bit shorter than most months (which are 30 or 31 days long), so the date of full moon creeps a day or ...
... many lunar months are there in a year? We found that there are 29.5 days between full moons. Unlike the length of a day, this does not change appreciably from month to month. Note that it is just a bit shorter than most months (which are 30 or 31 days long), so the date of full moon creeps a day or ...
Document
... winds heat and compress the disk causing agglomeration out to the snow line. The cores grow by collecting material infalling toward the star. They are in unstable orbits that can change radically or they can be ejected from the system. A core in a highly eccentric orbit that goes far into the disk c ...
... winds heat and compress the disk causing agglomeration out to the snow line. The cores grow by collecting material infalling toward the star. They are in unstable orbits that can change radically or they can be ejected from the system. A core in a highly eccentric orbit that goes far into the disk c ...
PDF format
... a) the changing position of stars relative to each other due to their different speeds in the Milky Way. b) the changing position of nearby stars compared to background stars as Earth's axis precesses. c) the changing position of nearby stars compared to background stars as Earth orbits the Sun. ...
... a) the changing position of stars relative to each other due to their different speeds in the Milky Way. b) the changing position of nearby stars compared to background stars as Earth's axis precesses. c) the changing position of nearby stars compared to background stars as Earth orbits the Sun. ...
The first cool rocky/icy exoplanet
... helium, and to migrate inwards, with a fair fraction ending up in close orbits: these constitute the hot planets. The expected distribution of planets as a function of their mass and orbital axis depends critically on the mass of their host star. For different stellar masses between 0.2 M⊙ and 1.5 M ...
... helium, and to migrate inwards, with a fair fraction ending up in close orbits: these constitute the hot planets. The expected distribution of planets as a function of their mass and orbital axis depends critically on the mass of their host star. For different stellar masses between 0.2 M⊙ and 1.5 M ...
Jan 2015 - Bluewater Astronomical Society
... Next to an eclipse, the passage of a planet behind the Moon is a fun event to watch. Ideally the brightest planet (Venus) would pass behind the second brightest object in the sky, the Moon, an event that, if the path were central, would take about an hour. With seven planets in the list of candidate ...
... Next to an eclipse, the passage of a planet behind the Moon is a fun event to watch. Ideally the brightest planet (Venus) would pass behind the second brightest object in the sky, the Moon, an event that, if the path were central, would take about an hour. With seven planets in the list of candidate ...
August Newsletter
... Corona Australis is a small, compact constellation located between Sagittarius and Scorpius, just east of the scorpion's stinger. (We also have the other crown Corona Borealis in the sky too for a short time, one of the few times in the year when both crowns appear in our sky together). Lyra, the Ly ...
... Corona Australis is a small, compact constellation located between Sagittarius and Scorpius, just east of the scorpion's stinger. (We also have the other crown Corona Borealis in the sky too for a short time, one of the few times in the year when both crowns appear in our sky together). Lyra, the Ly ...
SECTION28.1 Formation of the Solar System
... Some debris that was not ejected from the solar system became icy objects known as comets. Other debris formed rocky bodies known as asteroids. ...
... Some debris that was not ejected from the solar system became icy objects known as comets. Other debris formed rocky bodies known as asteroids. ...
Draft Science Cases for KPAO
... the visible spectrum. The cone effect on an 8 meter telescope with a single laser guide star produces 125nm of error. So an AO system with comparable performance (e.g., Subaru C188 has 145nm fitting error - in 0.6” seeing - SR=23%, SH=72%, SK=84%) would have to have this error added quadratically (s ...
... the visible spectrum. The cone effect on an 8 meter telescope with a single laser guide star produces 125nm of error. So an AO system with comparable performance (e.g., Subaru C188 has 145nm fitting error - in 0.6” seeing - SR=23%, SH=72%, SK=84%) would have to have this error added quadratically (s ...
Understanding High Throughput Satellite (HTS) Technology
... Why Does Efficiency Matter? • Optimal satellite efficiency depends on the target business application – A lower efficiency design will optimize shared network services for the most number of users at the lowest possible cost per user – A high efficiency design will enable carriergrade services, max ...
... Why Does Efficiency Matter? • Optimal satellite efficiency depends on the target business application – A lower efficiency design will optimize shared network services for the most number of users at the lowest possible cost per user – A high efficiency design will enable carriergrade services, max ...
Basic Debris Disk Model - Institute of Astronomy
... Far-IR upper limit does not rule out the existence of an outer planetesimal belt Planetary system at <0.8AU provides potential for dynamical instability (Lovis et al. 2006) ...
... Far-IR upper limit does not rule out the existence of an outer planetesimal belt Planetary system at <0.8AU provides potential for dynamical instability (Lovis et al. 2006) ...
PSC100 Summary Chapters 10 to Chapter 20
... detail. They were even formulated into their own unique list called the Messier Catalog of the Nebula. The term "nebulae" is used here because it is the Latin word for cloud, which is what these light sources resembled. Some of the nebula actually turned out to be clouds of gas and dust, but many ot ...
... detail. They were even formulated into their own unique list called the Messier Catalog of the Nebula. The term "nebulae" is used here because it is the Latin word for cloud, which is what these light sources resembled. Some of the nebula actually turned out to be clouds of gas and dust, but many ot ...
10. Exoplanets
... Jupiter-like planets should not form inside the frost line (at << 5 AU). • The discovery of hot Jupiters has forced reexamination of nebular theory. • Planetary migration or gravitational encounters may explain hot Jupiters. © 2010 Pearson Education, Inc. ...
... Jupiter-like planets should not form inside the frost line (at << 5 AU). • The discovery of hot Jupiters has forced reexamination of nebular theory. • Planetary migration or gravitational encounters may explain hot Jupiters. © 2010 Pearson Education, Inc. ...
2.4 Statistical properties of radial velocity planets
... – for about 1 % of the stars a close in (<0.1 AU), hot Jupiter with mP sin i > 0.1MJ is detected, – for about 15 % of the stars a giant planet with mP sin i > 0.1MJ out to a separation of 5 AU is present, – RV-surveys can not say much about the frequency of giant planets at large separation > 5 AU, ...
... – for about 1 % of the stars a close in (<0.1 AU), hot Jupiter with mP sin i > 0.1MJ is detected, – for about 15 % of the stars a giant planet with mP sin i > 0.1MJ out to a separation of 5 AU is present, – RV-surveys can not say much about the frequency of giant planets at large separation > 5 AU, ...
Proposal submitted to ISSI
... After the successful launch of the CoRoT space observatory (CNES) in December 27, 2006 and the scheduled launch of NASAs Kepler space observatory in 2008, a very large sample of distant stars will be surveyed to detect giant to Earth-size exoplanets in transit. Follow-up observations from ground-bas ...
... After the successful launch of the CoRoT space observatory (CNES) in December 27, 2006 and the scheduled launch of NASAs Kepler space observatory in 2008, a very large sample of distant stars will be surveyed to detect giant to Earth-size exoplanets in transit. Follow-up observations from ground-bas ...
Lab Script
... You will be using some special software to simulate the motion of planets in our Solar System and across the night sky. You will be asked to try and figure out Kepler’s 3rd Law using observations you make of the planets using this software. Having worked out the nature of the Law, you will be asked ...
... You will be using some special software to simulate the motion of planets in our Solar System and across the night sky. You will be asked to try and figure out Kepler’s 3rd Law using observations you make of the planets using this software. Having worked out the nature of the Law, you will be asked ...
Distribution and Properties of the ISM
... • Very low Q might allow giant planet formation. – direct gravitational condensation proposed – may be impossible to get through intermediate Q regime though, due to efficient accretion there. – standard giant planet formation mechanism starts with solid planetesimals building up a 10 M core follow ...
... • Very low Q might allow giant planet formation. – direct gravitational condensation proposed – may be impossible to get through intermediate Q regime though, due to efficient accretion there. – standard giant planet formation mechanism starts with solid planetesimals building up a 10 M core follow ...
the particle was on Earth`s surface
... (except at two poles) must rotate in a circle about the Earth’s rotation axis and thus have a centripital acceleration ( requiring a centripital net force ) directed toward the center of the ciecle. ...
... (except at two poles) must rotate in a circle about the Earth’s rotation axis and thus have a centripital acceleration ( requiring a centripital net force ) directed toward the center of the ciecle. ...
Lecture17-ASTA01
... << sun-Mercury distance) • Half the mass of Jupiter amounts to 160 Earth masses. A large planet, larger than Saturn. ...
... << sun-Mercury distance) • Half the mass of Jupiter amounts to 160 Earth masses. A large planet, larger than Saturn. ...
galileo_pdf - Creation Concepts
... long before the telescope. All four moons -Ganymede, Callisto, Io, and Europa -- are bright enough to be seen with the naked eye ... [And] people have seen them. According to a manuscript unearthed ... in China, the astronomer Gan De noticed a 'small reddish star' attached to Jupiter in 364 B.C. It ...
... long before the telescope. All four moons -Ganymede, Callisto, Io, and Europa -- are bright enough to be seen with the naked eye ... [And] people have seen them. According to a manuscript unearthed ... in China, the astronomer Gan De noticed a 'small reddish star' attached to Jupiter in 364 B.C. It ...
Newton`s Law of Universal Gravitation
... Today, Newton's law of universal gravitation is a widely accepted theory. It guides the efforts of scientists in their study of planetary orbits. Knowing that all objects exert gravitational influences on each other, the small perturbations in a planet's elliptical motion can be easily explained. A ...
... Today, Newton's law of universal gravitation is a widely accepted theory. It guides the efforts of scientists in their study of planetary orbits. Knowing that all objects exert gravitational influences on each other, the small perturbations in a planet's elliptical motion can be easily explained. A ...
Extra-solar planets
... with Kepler, where members of the public identify transit events in the light curves to identify planets that the computer algorithms might miss. The first person to flag a potential transit gets credit for the discovery, and is offered authorship on the paper. At least 60 new candidates have been i ...
... with Kepler, where members of the public identify transit events in the light curves to identify planets that the computer algorithms might miss. The first person to flag a potential transit gets credit for the discovery, and is offered authorship on the paper. At least 60 new candidates have been i ...
Equilibrium Tides
... Currently estimates of the tidal components are made using a combination of numerical tide models and observations. Tidal variations in sea level are periodic (repeating with a fixed period) and, with sufficiently long time-series of tide measurements at a given point, the tides can be predicted wit ...
... Currently estimates of the tidal components are made using a combination of numerical tide models and observations. Tidal variations in sea level are periodic (repeating with a fixed period) and, with sufficiently long time-series of tide measurements at a given point, the tides can be predicted wit ...
Chapter 9 Lecture 1
... • Why is there an asteroid belt? • Orbital resonances with Jupiter disrupted the orbits of planetesimals, preventing them from accreting into a planet. Those that were not ejected from this region make up the • How are meteorites related to asteroid belt today. Most asteroids? asteroids in other reg ...
... • Why is there an asteroid belt? • Orbital resonances with Jupiter disrupted the orbits of planetesimals, preventing them from accreting into a planet. Those that were not ejected from this region make up the • How are meteorites related to asteroid belt today. Most asteroids? asteroids in other reg ...
Orbital and Physical Characteristics of Extrasolar Planets Systems
... orbits with à<1AU. Among them are many of the co-called “Hot Jupiters” – planets, whose orbits have à<0,1AU (Figure 7); • The distribution of planets as a function of the semimajor axis clearly shows the availability of dynamical resonance in the planet orbits (Figure 7). The impression for the pr ...
... orbits with à<1AU. Among them are many of the co-called “Hot Jupiters” – planets, whose orbits have à<0,1AU (Figure 7); • The distribution of planets as a function of the semimajor axis clearly shows the availability of dynamical resonance in the planet orbits (Figure 7). The impression for the pr ...
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.