pptx - University of Rochester
... • Conjunction every 97 days (7 times orbital period of inner planet or 6 times orbit of outer planet) • Distance between planets at conjunction is 85 planet radii or 2 million km (about 5 times the distance between the Earth and Moon). – A viewer on planet b would see an angular diameter for planet ...
... • Conjunction every 97 days (7 times orbital period of inner planet or 6 times orbit of outer planet) • Distance between planets at conjunction is 85 planet radii or 2 million km (about 5 times the distance between the Earth and Moon). – A viewer on planet b would see an angular diameter for planet ...
ExTRaSOLaR pLaNeTS
... differ in this from dwarf planets (such as Pluto), which do not have enough mass to clear the protoplanetary disc area. The first detection of an extrasolar planet occurred in 1992 when the astrophysicists Aleksander Wolszczan and Dale Frail discovered three extrasolar planets. They were found in an ...
... differ in this from dwarf planets (such as Pluto), which do not have enough mass to clear the protoplanetary disc area. The first detection of an extrasolar planet occurred in 1992 when the astrophysicists Aleksander Wolszczan and Dale Frail discovered three extrasolar planets. They were found in an ...
Light and shadow from distant worlds
... he first exoplanet found to orbit a solar-type star (51 Peg) was a startling discovery1. This gas-giant planet of half a Jupiter mass orbits its star at a distance six times closer than the radius of Mercury’s orbit in our own Solar System. The exoplanet, 51 Peg b, was discovered by measuring the li ...
... he first exoplanet found to orbit a solar-type star (51 Peg) was a startling discovery1. This gas-giant planet of half a Jupiter mass orbits its star at a distance six times closer than the radius of Mercury’s orbit in our own Solar System. The exoplanet, 51 Peg b, was discovered by measuring the li ...
LT telescope proposal (2011a)
... deviations in the stellar disk brightness; recent works (Huber et al. 2010, Silva-Valio et al. 2009 combined with Lanza et al. 2009) indicate that the strip occulted by the CoRoT-2’s planet has a lower surface brightness than the rest of the star; similar to the well-known tendency of solar spots to ...
... deviations in the stellar disk brightness; recent works (Huber et al. 2010, Silva-Valio et al. 2009 combined with Lanza et al. 2009) indicate that the strip occulted by the CoRoT-2’s planet has a lower surface brightness than the rest of the star; similar to the well-known tendency of solar spots to ...
Extreme Optics and the Search for Earth-Like Planets
... Consider for a moment how our own Solar System would look if we could step away and look back at it from a distance of 10 parsecs (i.e., 33 light years). Assuming the most favorable configuration, Earth would be displaced 0.1 arcseconds from the Sun (this, by the way, follows immediately from the de ...
... Consider for a moment how our own Solar System would look if we could step away and look back at it from a distance of 10 parsecs (i.e., 33 light years). Assuming the most favorable configuration, Earth would be displaced 0.1 arcseconds from the Sun (this, by the way, follows immediately from the de ...
FOTO Imaging
... This topic will discuss and show the effects of "seeing" conditions – and how, with the use of a webcam style camera, you can create a much sharper image than is visible to the eye through the eyepiece. Steve will demonstrate how a few minutes of computer processing time can produce a very usable im ...
... This topic will discuss and show the effects of "seeing" conditions – and how, with the use of a webcam style camera, you can create a much sharper image than is visible to the eye through the eyepiece. Steve will demonstrate how a few minutes of computer processing time can produce a very usable im ...
ABSOLUTE AND APPARENT MAGNITUDES
... EXAMPLE: If a star has an apparent magnitude of +2 and a planet has an apparent magnitude of -5 (due to light reflected from its surface or cloudtops) as seen from a planet’s surface, then the planet appears about 630 times brighter in the sky than the star. To give you an idea of scale and the numb ...
... EXAMPLE: If a star has an apparent magnitude of +2 and a planet has an apparent magnitude of -5 (due to light reflected from its surface or cloudtops) as seen from a planet’s surface, then the planet appears about 630 times brighter in the sky than the star. To give you an idea of scale and the numb ...
An extrasolar planetary system with three
... periods of 8.67, 31.6 and 197 days, orbiting the nearby star HD 69830. This star was already known to show an infrared excess possibly caused by an asteroid belt within 1 AU (the Sun–Earth distance). Simulations show that the system is in a dynamically stable configuration. Theoretical calculations ...
... periods of 8.67, 31.6 and 197 days, orbiting the nearby star HD 69830. This star was already known to show an infrared excess possibly caused by an asteroid belt within 1 AU (the Sun–Earth distance). Simulations show that the system is in a dynamically stable configuration. Theoretical calculations ...
PTYS/ASTR 206
... – Most of the time, but not all of the time! Its orbit can bring it inside of Neptune’s (as it did from 1979-1999) • Only “planet” not visited by a spacecraft – New Horizons, launched in Jan. 2006, will reach Pluto in ...
... – Most of the time, but not all of the time! Its orbit can bring it inside of Neptune’s (as it did from 1979-1999) • Only “planet” not visited by a spacecraft – New Horizons, launched in Jan. 2006, will reach Pluto in ...
Prospects for detection of protoplanets
... Theoretical investigations show that the planet-disk interaction causes structures in circumstellar disks, which are usually much larger in size than the planet itself and thus more easily detectable. The specific result of the planet-disk interaction depends on the evolutionary stage of the disk. N ...
... Theoretical investigations show that the planet-disk interaction causes structures in circumstellar disks, which are usually much larger in size than the planet itself and thus more easily detectable. The specific result of the planet-disk interaction depends on the evolutionary stage of the disk. N ...
Transiting exoplanets from the CoRoT space mission
... discovered thanks to photometric data secured with the CoRoT satellite, combined with spectroscopic radial velocity (RV) measurements. A photometric search for possible background eclipsing binaries conducted at CFHT and OGS concluded with a very low risk of false positives. The usual techniques of ...
... discovered thanks to photometric data secured with the CoRoT satellite, combined with spectroscopic radial velocity (RV) measurements. A photometric search for possible background eclipsing binaries conducted at CFHT and OGS concluded with a very low risk of false positives. The usual techniques of ...
PDF 523 KB
... dedicated portion of his life searching for the planet beyond Neptune. A few times he was very close to finalizing his ultimate dream. It looks like a few times PLuto was missed. It is very sad that Percival Lowell died before PLuto was discovered. In spite of the fact that he himself did not discov ...
... dedicated portion of his life searching for the planet beyond Neptune. A few times he was very close to finalizing his ultimate dream. It looks like a few times PLuto was missed. It is very sad that Percival Lowell died before PLuto was discovered. In spite of the fact that he himself did not discov ...
Other Bodies in the Solar System
... • In 1800 astronomer Franz Xaver von Zach assembled the Celestial Police • Searching for “the missing planet” between mars and Jupiter • Based off Predictions by Johann Daniel Titius vonWittenburg • In 1801 Giuseppe Piazzi discovered the planet “Ceres” • William Herschel categorized Ceres and the ot ...
... • In 1800 astronomer Franz Xaver von Zach assembled the Celestial Police • Searching for “the missing planet” between mars and Jupiter • Based off Predictions by Johann Daniel Titius vonWittenburg • In 1801 Giuseppe Piazzi discovered the planet “Ceres” • William Herschel categorized Ceres and the ot ...
Inquiry Activity - Ball State University
... along the apparent path of motion is the position of Mars as seen from Earth, once every couple days). Planets appear to move faster around the Earth than constellations or stars because they are closer to the earth. If you are riding in a car and you look out the window the closer an object is to t ...
... along the apparent path of motion is the position of Mars as seen from Earth, once every couple days). Planets appear to move faster around the Earth than constellations or stars because they are closer to the earth. If you are riding in a car and you look out the window the closer an object is to t ...
ppt
... symbol denotes the first 2009 epoch. The upper-right small panel shows a zoomed version of e's astrometry including the expected motion (curved line) if it is an unrelated background object. Planet e is confirmed as bound to HR 8799 and it is moving 46 ± 10 mas/year counter-clockwise. The orbits of ...
... symbol denotes the first 2009 epoch. The upper-right small panel shows a zoomed version of e's astrometry including the expected motion (curved line) if it is an unrelated background object. Planet e is confirmed as bound to HR 8799 and it is moving 46 ± 10 mas/year counter-clockwise. The orbits of ...
Telescopic Drawings or Photographs of Celestial
... • Each task marked using the same markscheme giving 2 marks out of 20 • The 20 marks are split into marks out of 5 for each of the four sections • Design /5 Observation /5 Analysis/5 Evaluation/5 • Design, analysis and evaluation completed under conditions of high control • Observation is completed ...
... • Each task marked using the same markscheme giving 2 marks out of 20 • The 20 marks are split into marks out of 5 for each of the four sections • Design /5 Observation /5 Analysis/5 Evaluation/5 • Design, analysis and evaluation completed under conditions of high control • Observation is completed ...
Society News - Bristol Astronomical Society
... This month, low in the southern sky you will find a faint group of constellations which are collectively known as ‘The Water’. The members of this group are Cetus, Capricornus, Aquarius and Pisces and all have a mythological connection with water. Capricornus lies furthest west and is therefore the ...
... This month, low in the southern sky you will find a faint group of constellations which are collectively known as ‘The Water’. The members of this group are Cetus, Capricornus, Aquarius and Pisces and all have a mythological connection with water. Capricornus lies furthest west and is therefore the ...
Sky Watcher - Boise Astronomical Society
... August 10th to 31st, observers around 40° north will find Mercury 10° above the eastern horizon 30 minutes before sunrise. Venus is visible in the east shortly before sunrise all August. It is at peak brightness (magnitude -4.4) early in the month. Telescopes show Venus' crescent shrinking in appare ...
... August 10th to 31st, observers around 40° north will find Mercury 10° above the eastern horizon 30 minutes before sunrise. Venus is visible in the east shortly before sunrise all August. It is at peak brightness (magnitude -4.4) early in the month. Telescopes show Venus' crescent shrinking in appare ...
View/Open - SUNY DSpace
... dirt and rocks. These planets are denser the closer you get to the sun because of the gravitational force. Then in between Mars and Jupiter, separating the inner planets from the outer is the asteroid belt. It’s said that it’s the remains of planets that failed to form, there are about 200 asteroids ...
... dirt and rocks. These planets are denser the closer you get to the sun because of the gravitational force. Then in between Mars and Jupiter, separating the inner planets from the outer is the asteroid belt. It’s said that it’s the remains of planets that failed to form, there are about 200 asteroids ...
Astronomy Timeline
... 130 B.C. - Greek astronomer Hipparchus develops the first accurate star map and star catalogue, and a reliable method to predict solar eclipses 46 B.C. - Julius Caesar, after consulting the astronomer Sosigenes of Alexandria, introduces the Julian Calendar, a regular year of 365 days divided into 12 ...
... 130 B.C. - Greek astronomer Hipparchus develops the first accurate star map and star catalogue, and a reliable method to predict solar eclipses 46 B.C. - Julius Caesar, after consulting the astronomer Sosigenes of Alexandria, introduces the Julian Calendar, a regular year of 365 days divided into 12 ...
Possible patterns in the distribution of planetary formation regions
... with the configuration in which Ceres is included resulted in better fits than the actual solar system in only 2-10% of the cases. The addition of another object like Eris would likely decrease the above figure even further and therefore the current solar system configuration would be far from rando ...
... with the configuration in which Ceres is included resulted in better fits than the actual solar system in only 2-10% of the cases. The addition of another object like Eris would likely decrease the above figure even further and therefore the current solar system configuration would be far from rando ...
July 2014 BRAS Newsletter - The Baton Rouge Astronomical Society
... First, they narrowed their search in the Kepler data to 42,557 stars of spectral classes G (yellow) and K (orange), with surface temperatures of 4,100 K to 6,100 K bracketing the Sun’s 5,770 K, and masses ranging from 0.6 to 1.1 times the Sun’s. Then, with the aid of custom-built software called TER ...
... First, they narrowed their search in the Kepler data to 42,557 stars of spectral classes G (yellow) and K (orange), with surface temperatures of 4,100 K to 6,100 K bracketing the Sun’s 5,770 K, and masses ranging from 0.6 to 1.1 times the Sun’s. Then, with the aid of custom-built software called TER ...
We see apparent retrograde motion when we pass by a
... The Greeks knew that the lack of observable parallax could mean one of two things: 1. Stars are so far away that stellar parallax is too small to notice with the naked eye 2. Earth does not orbit Sun; it is the center of the universe With rare exceptions such as Aristarchus, the Greeks rejected th ...
... The Greeks knew that the lack of observable parallax could mean one of two things: 1. Stars are so far away that stellar parallax is too small to notice with the naked eye 2. Earth does not orbit Sun; it is the center of the universe With rare exceptions such as Aristarchus, the Greeks rejected th ...
Testing
... that allows a planet’s orbit to move inward? A. It transfers energy and angular momentum to another object. B. The gravity of the other object forces the planet to move inward. C. It gains mass from the other object, causing its gravitational pull to become stronger. ...
... that allows a planet’s orbit to move inward? A. It transfers energy and angular momentum to another object. B. The gravity of the other object forces the planet to move inward. C. It gains mass from the other object, causing its gravitational pull to become stronger. ...
Discovery of Neptune
The planet Neptune was mathematically predicted before it was directly observed. With a prediction by Urbain Le Verrier, telescopic observations confirming the existence of a major planet were made on the night of September 23–24, 1846, at the Berlin Observatory, by astronomer Johann Gottfried Galle (assisted by Heinrich Louis d'Arrest), working from Le Verrier's calculations. It was a sensational moment of 19th century science and dramatic confirmation of Newtonian gravitational theory. In François Arago's apt phrase, Le Verrier had discovered a planet ""with the point of his pen"".In retrospect, after it was discovered it turned out it had been observed many times before but not recognized, and there were others who made various calculations about its location, which did not lead to its observation. By 1847 the planet Uranus had completed nearly one full orbit since its discovery by William Herschel in 1781, and astronomers had detected a series of irregularities in its path that could not be entirely explained by Newton's law of gravitation. These irregularities could, however, be resolved if the gravity of a farther, unknown planet were disturbing its path around the Sun. In 1845 astronomers Urbain Le Verrier in Paris and John Couch Adams in Cambridge separately began calculations to determine the nature and position of such a planet. Le Verrier's success also led to a tense international dispute over priority, because shortly after the discovery George Airy, at the time British Astronomer Royal, announced that Adams had also predicted the discovery of the planet. Nevertheless, the Royal Society awarded Le Verrier the Copley medal in 1846 for his achievement, without mention of Adams.The discovery of Neptune led to the discovery of its moon Triton by William Lassell just seventeen days later.