a transiting planet of a sun-like star
... 0.006 day bins. Binning permitted outlier rejection and empirical estimation of the noise by the scatter of the individual observations, which is helpful in cases such as this in which scintillation can be a significant and unpredictable component to noise. We estimate all-sky photometric B, V, RC, ...
... 0.006 day bins. Binning permitted outlier rejection and empirical estimation of the noise by the scatter of the individual observations, which is helpful in cases such as this in which scintillation can be a significant and unpredictable component to noise. We estimate all-sky photometric B, V, RC, ...
Changes in a scientific concept: what is a planet? - Philsci
... According to the draft definition proposed by the IAU Planet Definition Committee (IAU [2006a]) a planet is a celestial body which is round due to its gravity6, orbits a star, and is not a star nor a satellite. In a binary or multiple system, if the barycentre is inside the primary object, the seco ...
... According to the draft definition proposed by the IAU Planet Definition Committee (IAU [2006a]) a planet is a celestial body which is round due to its gravity6, orbits a star, and is not a star nor a satellite. In a binary or multiple system, if the barycentre is inside the primary object, the seco ...
Tidal evolution
... to estimate dissipation and torque, you need to sum over modes of the star/planet, often only a few modes are important ...
... to estimate dissipation and torque, you need to sum over modes of the star/planet, often only a few modes are important ...
Document
... with the Sun at one focus.(1609) 2) Line joining the planet to the Sun sweeps out equal areas in equal times. 3) The square of a planet’s orbital period is proportional to the cube of its semimajor axis ...
... with the Sun at one focus.(1609) 2) Line joining the planet to the Sun sweeps out equal areas in equal times. 3) The square of a planet’s orbital period is proportional to the cube of its semimajor axis ...
Signatures of Planets in Protoplanetary and Debris
... of circumstellar disks, has been developed already, the planet formation process is in major parts still under discussion. In particular, adequate constraints from observations are required in order to either verify or rule out currently discussed planet formation scenarios (e.g., Pollack et al. 199 ...
... of circumstellar disks, has been developed already, the planet formation process is in major parts still under discussion. In particular, adequate constraints from observations are required in order to either verify or rule out currently discussed planet formation scenarios (e.g., Pollack et al. 199 ...
Inti didn`t form in the X wind (and neither did most CAIs)
... "upstream" and limited (Cuzzi & Hogan 2003; Cuzzi et al. 2003). In a decretion disk, outward radial diffusion goes "with the flow": the majority of material can be transported outward. Enables outward transport of crystalline silicates and even CAI-like materials produced in inner solar system, out ...
... "upstream" and limited (Cuzzi & Hogan 2003; Cuzzi et al. 2003). In a decretion disk, outward radial diffusion goes "with the flow": the majority of material can be transported outward. Enables outward transport of crystalline silicates and even CAI-like materials produced in inner solar system, out ...
Pluto Reading
... Pluto is a dwarf planet (or plutoid) that usually orbits past the orbit of Neptune. It was classified as a dwarf planet in 2006; before that it was considered to be a planet, the smallest planet in our solar system. There are many other dwarf planets in our Solar System. Pluto is smaller than a lot ...
... Pluto is a dwarf planet (or plutoid) that usually orbits past the orbit of Neptune. It was classified as a dwarf planet in 2006; before that it was considered to be a planet, the smallest planet in our solar system. There are many other dwarf planets in our Solar System. Pluto is smaller than a lot ...
Eris en Dysnomia
... The largest known KBO (Kuiper Belt Object), 2003 UB313, as imaged at three different times on October 21 of 2003, by the Palomar 48-inch Schmidt telescope. Curently about 19th magnitude, the object is near aphelion, 97 AUs (about 9 billion miles), or about twice as far as Pluto, from the Sun. Origin ...
... The largest known KBO (Kuiper Belt Object), 2003 UB313, as imaged at three different times on October 21 of 2003, by the Palomar 48-inch Schmidt telescope. Curently about 19th magnitude, the object is near aphelion, 97 AUs (about 9 billion miles), or about twice as far as Pluto, from the Sun. Origin ...
Naval IQbservatory Washington 25. DC
... indicate that Sirius B has a mass of three quarters that of the sun and exhibits a red shift corresponding to 60 km/sec. or three times Adams' value which is now thought to be in error because of haste pranpted by the desire to confirm Einstein's theory as early as possible. Many astronomers have sp ...
... indicate that Sirius B has a mass of three quarters that of the sun and exhibits a red shift corresponding to 60 km/sec. or three times Adams' value which is now thought to be in error because of haste pranpted by the desire to confirm Einstein's theory as early as possible. Many astronomers have sp ...
Improving the Gaia planet catch by combining the astrometry with
... considered that the planet could be detected. The first step of our study was to determine the precision of the instruments. For radial velocities, we assumed an intrinsic instrumental noise of 1 m s–1 for HARPS and 3 m s–1 for CORALIE. We also considered photon noise as described in [1]. To conside ...
... considered that the planet could be detected. The first step of our study was to determine the precision of the instruments. For radial velocities, we assumed an intrinsic instrumental noise of 1 m s–1 for HARPS and 3 m s–1 for CORALIE. We also considered photon noise as described in [1]. To conside ...
Exoplanets
... rocky planets discovered in the innermost regions of protoplanetary discs around three young stars. This suggests that the formation of Earth-like planets may not be unusual. (eso0435) 2004: First direct image taken of an exoplanet, paving the way for more direct studies. (eso00428) 2004: Discov ...
... rocky planets discovered in the innermost regions of protoplanetary discs around three young stars. This suggests that the formation of Earth-like planets may not be unusual. (eso0435) 2004: First direct image taken of an exoplanet, paving the way for more direct studies. (eso00428) 2004: Discov ...
Disk edges
... (supports transient view; Elmegreen) • Trends in opening angle with Hubble type support modal view? • Kinks suggesting resonances such as 4:1 important --- second order term makes steady state pattern impossible to support past the 4:1 (Contopoulos, Patsis) • Feathering of dust show that swing ampli ...
... (supports transient view; Elmegreen) • Trends in opening angle with Hubble type support modal view? • Kinks suggesting resonances such as 4:1 important --- second order term makes steady state pattern impossible to support past the 4:1 (Contopoulos, Patsis) • Feathering of dust show that swing ampli ...
(pdf)
... 4.1. Orbit Size and Stability The possibility of observing a toroidal atmosphere in absorption when a giant planet transits the disk of its parent star is determined not only by the amount of material and the dimensions of the cloud, but also by the geometry of the observation. The orbital period of ...
... 4.1. Orbit Size and Stability The possibility of observing a toroidal atmosphere in absorption when a giant planet transits the disk of its parent star is determined not only by the amount of material and the dimensions of the cloud, but also by the geometry of the observation. The orbital period of ...
Terrestrial planet formation in exoplanetary systems with a giant
... relatively far away from the central star (at 3.3 and beyond 2.1 AU, respectively). This peculiarity makes them possible candidates for harboring terrestrial planets in their inner regions since the external giant planet might not have inhibited planet growth in the neighborhood of the star. Here we ...
... relatively far away from the central star (at 3.3 and beyond 2.1 AU, respectively). This peculiarity makes them possible candidates for harboring terrestrial planets in their inner regions since the external giant planet might not have inhibited planet growth in the neighborhood of the star. Here we ...
Poster - Astronomical Institute WWW Homepage
... noted in the program “Target_pos”. The final stage of processing – high-precision calculation of coordinates are carried out by means of the universal program “Apex”. The precision of unit position measurement is usually 1 angular second. ...
... noted in the program “Target_pos”. The final stage of processing – high-precision calculation of coordinates are carried out by means of the universal program “Apex”. The precision of unit position measurement is usually 1 angular second. ...
Chapter 9
... 1. Uranus, though barely visible to the naked eye, was unknown to the ancients. It was plotted on star charts as early as 1690, but Uranus’ slow orbital motion caused it to go unnoticed until Herschel discovered it in 1781. 2. Uranus’ diameter is difficult to determine from Earth because its angular ...
... 1. Uranus, though barely visible to the naked eye, was unknown to the ancients. It was plotted on star charts as early as 1690, but Uranus’ slow orbital motion caused it to go unnoticed until Herschel discovered it in 1781. 2. Uranus’ diameter is difficult to determine from Earth because its angular ...
Laws of planets motion
... the governing council consisting of 20 advisors to the King. In 1559 Tycho began his studies at the University of Copenhagen. There, following the wishes of his uncle, he studied law but also studied a variety of other subjects and became interested in astronomy. In 1562 he set off to go to the Univ ...
... the governing council consisting of 20 advisors to the King. In 1559 Tycho began his studies at the University of Copenhagen. There, following the wishes of his uncle, he studied law but also studied a variety of other subjects and became interested in astronomy. In 1562 he set off to go to the Univ ...
Comet-like tail-formation of exospheres of hot rocky exoplanets
... the composition of silicate atmospheres which are produced by the vaporisation of volatile-free Earth-like super-Earth’s. Their model calculations indicate volatile elements such as H, C, N, S, and Cl have been lost from the planet, but find that the silicate ...
... the composition of silicate atmospheres which are produced by the vaporisation of volatile-free Earth-like super-Earth’s. Their model calculations indicate volatile elements such as H, C, N, S, and Cl have been lost from the planet, but find that the silicate ...
AST1100 Lecture Notes
... Most models of star formation tell us that the formation of planets is a common process. We expect most stars to have planets orbiting them. Why then, has only a very few planets (less than ten by fall 2009) around other stars been seen directly? There are two main reasons for this: 1. The planet’s ...
... Most models of star formation tell us that the formation of planets is a common process. We expect most stars to have planets orbiting them. Why then, has only a very few planets (less than ten by fall 2009) around other stars been seen directly? There are two main reasons for this: 1. The planet’s ...
Why was Pluto once considered a planet?
... to be in error that predicted a planet beyond Neptune, based on the motions of Uranus and Neptune. • Not N t kknowing i off the th error, Clyde Cl d W. W Tombaugh T b h att Lowell L ll Observatory in Arizona did a very careful sky survey. For 14 years Tombaugh scanned the skies, and discovered: ...
... to be in error that predicted a planet beyond Neptune, based on the motions of Uranus and Neptune. • Not N t kknowing i off the th error, Clyde Cl d W. W Tombaugh T b h att Lowell L ll Observatory in Arizona did a very careful sky survey. For 14 years Tombaugh scanned the skies, and discovered: ...
Insights into Bode`s Law
... became clear that the object moved in a planet-like orbit between the orbits of Mars and Jupiter. However due to illness, Piazzi was only able to observe the object until 11th February. Since no one was aware of its existence, the short period of observation by Piazzi was insufficient to compute wh ...
... became clear that the object moved in a planet-like orbit between the orbits of Mars and Jupiter. However due to illness, Piazzi was only able to observe the object until 11th February. Since no one was aware of its existence, the short period of observation by Piazzi was insufficient to compute wh ...
Giant Planets at Small Orbital Distances
... protostellar disk, but have nucleated in situ around a large rock core (without ice). 4. It could be a giant terrestrial planet formed by the accumulation of planetesimals; or 5. It could be an evaporated, ablated, or tidally stripped brown dwarf or star. However, whatever the provenance or evolutio ...
... protostellar disk, but have nucleated in situ around a large rock core (without ice). 4. It could be a giant terrestrial planet formed by the accumulation of planetesimals; or 5. It could be an evaporated, ablated, or tidally stripped brown dwarf or star. However, whatever the provenance or evolutio ...
an all-sky extrasolar planet survey with multiple object, dispersed
... extrasolar planets, the current approach is costly and time-consuming because of the large sizes and relatively low throughputs (a few percent) of the spectrographs, as well as the limitation of having a singleobject capability. A sample of approximately 3,000 stars (generally the closest and bright ...
... extrasolar planets, the current approach is costly and time-consuming because of the large sizes and relatively low throughputs (a few percent) of the spectrographs, as well as the limitation of having a singleobject capability. A sample of approximately 3,000 stars (generally the closest and bright ...
The Solar System - Gordon College English Center
... contains the Sun (which is a star by definition) and eight planets (which Earth is one of them) that orbit the sun regularly. In ancient times, people gazed at the night sky. They observed thousands of spots of light which kept their position and also few dots of light that changed their position. T ...
... contains the Sun (which is a star by definition) and eight planets (which Earth is one of them) that orbit the sun regularly. In ancient times, people gazed at the night sky. They observed thousands of spots of light which kept their position and also few dots of light that changed their position. T ...
Introduction
... solar-like star (a < 0.1 AU). They are also referred to in the literature as “51Peg like objects” or “close-in extrasolar giant planets (CEGP)”. Some authors (e.g. Bouchy et al. 2004) have suggested the term “Very Hot Jupiter ” or “extremely close-in extrasolar giant planet” for the planets with per ...
... solar-like star (a < 0.1 AU). They are also referred to in the literature as “51Peg like objects” or “close-in extrasolar giant planets (CEGP)”. Some authors (e.g. Bouchy et al. 2004) have suggested the term “Very Hot Jupiter ” or “extremely close-in extrasolar giant planet” for the planets with per ...
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.