Discovery and spectroscopy of the young Jovian planet
... prominent in the near-infrared spectra of T dwarfs (Teff <1100K), as well as the giant planets of our solar system, but so far weak or absent in the directly imaged exoplanets (4, 9–11). Most young planets appear to be methane-free even at temperatures where equivalent brown dwarfs show methane, sug ...
... prominent in the near-infrared spectra of T dwarfs (Teff <1100K), as well as the giant planets of our solar system, but so far weak or absent in the directly imaged exoplanets (4, 9–11). Most young planets appear to be methane-free even at temperatures where equivalent brown dwarfs show methane, sug ...
Project T-REX: Italian technologies for E
... CV: Staff researcher at the Istituto di Fisica Cosmica, Milano since 1985, Associate researcher since 2001. Guest researcher at CfA, High Energy Division, Cambridge, USA (1984, 1985, 1986), ESO (1992, 1993), Laboratoire d’Astrophysique de Marseille (2011). Her research activity has followed two comp ...
... CV: Staff researcher at the Istituto di Fisica Cosmica, Milano since 1985, Associate researcher since 2001. Guest researcher at CfA, High Energy Division, Cambridge, USA (1984, 1985, 1986), ESO (1992, 1993), Laboratoire d’Astrophysique de Marseille (2011). Her research activity has followed two comp ...
Astronomy Laboratory Manual
... location on your paper. Describe in detail the exact location from which you made your sketch and indicate on your picture which landmark you chose as the reference. It is important that every time you make an observation of the rising or setting Sun, you will need to return to this exact location a ...
... location on your paper. Describe in detail the exact location from which you made your sketch and indicate on your picture which landmark you chose as the reference. It is important that every time you make an observation of the rising or setting Sun, you will need to return to this exact location a ...
the saptarishis calendar: `the indian tropical zodiac`!
... All in all it can be said that the Saptarishis Calendar is an ill-understood phenomenon. This is because it is tempting to move the Saptarishis pointer along the ecliptic. Rather than moving the pointer from one star to another what actually happens is that the tropical zodiac—which is not dependent ...
... All in all it can be said that the Saptarishis Calendar is an ill-understood phenomenon. This is because it is tempting to move the Saptarishis pointer along the ecliptic. Rather than moving the pointer from one star to another what actually happens is that the tropical zodiac—which is not dependent ...
The Day We Found the Universe
... farsighted enough to tackle a problem others had been ignoring. Answers did not arrive in one eureka moment, but only after years of contentious debates over conjectures and measurements that were ercely disputed. The avenue of science is more often filled with twists, turns, and detours than unobst ...
... farsighted enough to tackle a problem others had been ignoring. Answers did not arrive in one eureka moment, but only after years of contentious debates over conjectures and measurements that were ercely disputed. The avenue of science is more often filled with twists, turns, and detours than unobst ...
JENAM-2011 Book of abstracts
... ESA’s Hipparcos astrometry mission was a particularly innovative project in space astronomy. The satellite was launched in 1989 (already more than 20 years ago) with the final Hipparcos and Tycho Catalogues fully published just eight years later. Exceeding the original scientific specifications in term ...
... ESA’s Hipparcos astrometry mission was a particularly innovative project in space astronomy. The satellite was launched in 1989 (already more than 20 years ago) with the final Hipparcos and Tycho Catalogues fully published just eight years later. Exceeding the original scientific specifications in term ...
A New Science Strategy for Space Astronomy and Astrophysics
... This report has been reviewed by a group other than the authors according to procedures approved by a Report Review Committee consisting of members of the National Academy of Sciences, the National Academy of Engineering, and the Institute of Medicine. The National Academy of Sciences is a private, ...
... This report has been reviewed by a group other than the authors according to procedures approved by a Report Review Committee consisting of members of the National Academy of Sciences, the National Academy of Engineering, and the Institute of Medicine. The National Academy of Sciences is a private, ...
Navigation: The Mariner`s Quadrant
... celestial bodies like the sun, planets, moon, or stars. The quadrant takes it name from its shape, which is a quarter of a circle. Invented by the Greeks around 240 B.C., several different types of quadrants have been used over the past 2500 years. Early quadrants used a 90 degree arc and a string Q ...
... celestial bodies like the sun, planets, moon, or stars. The quadrant takes it name from its shape, which is a quarter of a circle. Invented by the Greeks around 240 B.C., several different types of quadrants have been used over the past 2500 years. Early quadrants used a 90 degree arc and a string Q ...
Spring 2015 Mercury - Astronomical Society of the Pacific
... he most famous 11th-century comet was Halley’s Comet of 1066, which was linked to the Norman Conquest of England. But another comet of that century is linked to battles in both Scotland and Holland, and we are just three years away from its 1,000th anniversary. While the Battle of Hastings sealed th ...
... he most famous 11th-century comet was Halley’s Comet of 1066, which was linked to the Norman Conquest of England. But another comet of that century is linked to battles in both Scotland and Holland, and we are just three years away from its 1,000th anniversary. While the Battle of Hastings sealed th ...
cassini, rømer and the velocity of light
... The minutes of the Académie Royale des Sciences are incomplete for the year of the discovery, between 18 July and 14 November 1676. The missing content can however be reconstructed, thanks to indirect sources that cite or copy it. Jean-Baptiste Du Hamel (1624–1706), Secretary of the Academy from its ...
... The minutes of the Académie Royale des Sciences are incomplete for the year of the discovery, between 18 July and 14 November 1676. The missing content can however be reconstructed, thanks to indirect sources that cite or copy it. Jean-Baptiste Du Hamel (1624–1706), Secretary of the Academy from its ...
Basic Solar Positional Astronomy
... appear to move uniformly. So there is an imaginary Sun - the Mean Sun,- moving uniformly around the Equator which takes the place of the real Sun and tells such time. One cannot see an imaginary sun. But, since the Stars do appear to move uniformly around the Equator, they are used to measure Sidere ...
... appear to move uniformly. So there is an imaginary Sun - the Mean Sun,- moving uniformly around the Equator which takes the place of the real Sun and tells such time. One cannot see an imaginary sun. But, since the Stars do appear to move uniformly around the Equator, they are used to measure Sidere ...
Scheme of Work - Edexcel
... video clip - see Exemplar resources - and ask the pupils to think about where the Moon would be placed in the sky (e.g. close to the western horizon) at its different phases; this could lead to a discussion about different types of libration. ...
... video clip - see Exemplar resources - and ask the pupils to think about where the Moon would be placed in the sky (e.g. close to the western horizon) at its different phases; this could lead to a discussion about different types of libration. ...
tut35 Magnitudes
... magnitudes are used to describe the brightness of stellar and solar system objects while absolute magnitudes are required to assess intrinsic brightness. A method is described to evaluate extended object versus sky brightness to calculate contrast, which explains why we can see Venus in daylight sky ...
... magnitudes are used to describe the brightness of stellar and solar system objects while absolute magnitudes are required to assess intrinsic brightness. A method is described to evaluate extended object versus sky brightness to calculate contrast, which explains why we can see Venus in daylight sky ...
story of telescope
... features after further tests and observations, which may or may not tally with the predictions of the first model. A circle was the simplest conceivable path for an orbit, so the Greeks chose to think of circular orbits. Also, at first sight the Earth appears to be fixed, and so one tended to think ...
... features after further tests and observations, which may or may not tally with the predictions of the first model. A circle was the simplest conceivable path for an orbit, so the Greeks chose to think of circular orbits. Also, at first sight the Earth appears to be fixed, and so one tended to think ...
abū`l faẓl, independent discoverer of the great comet of 1577
... trained in the traditional as well as the rational (natural) sciences. He wrote in Persian the official biographical account of Akbar, the Akbarnāmā, and presented this to his Emperor (see Figure 1). This book would become one of the most important sources of Indian history. Abū‘l Faẓl‘s work Ā’in-i ...
... trained in the traditional as well as the rational (natural) sciences. He wrote in Persian the official biographical account of Akbar, the Akbarnāmā, and presented this to his Emperor (see Figure 1). This book would become one of the most important sources of Indian history. Abū‘l Faẓl‘s work Ā’in-i ...
Michell, Laplace and the Origin of the Black Hole Concept
... Herschel’s two 1782 papers, and especially the catalogue of double stars, provided Michell with the ‘means’ on which to base his second astronomical paper, which bears the exceedingly long and laborious title, “On the Means of Discovering the Distance, Magnitude, &c. of the Fixed Stars, in Consequen ...
... Herschel’s two 1782 papers, and especially the catalogue of double stars, provided Michell with the ‘means’ on which to base his second astronomical paper, which bears the exceedingly long and laborious title, “On the Means of Discovering the Distance, Magnitude, &c. of the Fixed Stars, in Consequen ...
gerard peter kuiper - National Academy of Sciences
... Kuiper organized a symposium on planetary atmospheres, assembling astronomers, meteorologists, and other specialists for the first meeting of its kind. An important outcome was the book edited by Kuiper, The Atmospheres of the Earth and Planets (Chicago: University of Chicago Press, 1949 and 1952). ...
... Kuiper organized a symposium on planetary atmospheres, assembling astronomers, meteorologists, and other specialists for the first meeting of its kind. An important outcome was the book edited by Kuiper, The Atmospheres of the Earth and Planets (Chicago: University of Chicago Press, 1949 and 1952). ...
Sample pages 1 PDF
... composition of the Universe. However, these results raise more questions than they answer: only 4 % of the energy content of the Universe can be accounted for by matter which is well-known from other fields of physics, the baryonic matter that consists mainly of atomic nuclei and electrons. About ...
... composition of the Universe. However, these results raise more questions than they answer: only 4 % of the energy content of the Universe can be accounted for by matter which is well-known from other fields of physics, the baryonic matter that consists mainly of atomic nuclei and electrons. About ...
Measuring the Distance to the Sun: Final Report
... proposed time interval but about four hours earlier because of the weather. Some days later, we heard that La Silla had taken pictures of the three asteroids during the second night as well. We managed to get them before they had been published and tried to combine them with the data from Portugal. ...
... proposed time interval but about four hours earlier because of the weather. Some days later, we heard that La Silla had taken pictures of the three asteroids during the second night as well. We managed to get them before they had been published and tried to combine them with the data from Portugal. ...
VIPNET NEWS T The Annular Solar Eclipse January 15, 2010
... will last over 10 minutes. Partial Solar eclipse can be seen from other parts of India. This time the moon’s shadow will travel more than 20,000 km across the earth, giving a fine chance to a large number of people to witness this unique eclipse. As per the calculations antumbral lunar shadow will c ...
... will last over 10 minutes. Partial Solar eclipse can be seen from other parts of India. This time the moon’s shadow will travel more than 20,000 km across the earth, giving a fine chance to a large number of people to witness this unique eclipse. As per the calculations antumbral lunar shadow will c ...
View the sky`s greatest nebula
... to Scorpius in the south. From this vantage point, we’re looking along the galaxy’s rim. Toward Scorpius is the central part of the Milky Way. Rather than seeing a field of blazing stars, our view is obscured by huge clouds of dust and gas. In the winter, we see the sky opposite the stellar traffic ...
... to Scorpius in the south. From this vantage point, we’re looking along the galaxy’s rim. Toward Scorpius is the central part of the Milky Way. Rather than seeing a field of blazing stars, our view is obscured by huge clouds of dust and gas. In the winter, we see the sky opposite the stellar traffic ...
Observationes Cometarvm Anni 1618
... or campaigns, etc. Some of these records have little astronomical content, but they underline how these types of events got rulers seriously concerned about their auspiciousness and possible consequences, so they even sought counsel for remedial measures. At this time, generally there was no clear d ...
... or campaigns, etc. Some of these records have little astronomical content, but they underline how these types of events got rulers seriously concerned about their auspiciousness and possible consequences, so they even sought counsel for remedial measures. At this time, generally there was no clear d ...
Observations of the asteroid 4844 Matsuyama
... planets in Harvard, where astronomical observations for the asteroids are collected. ...
... planets in Harvard, where astronomical observations for the asteroids are collected. ...
Astronomy WHS Sow
... and clusters( a tight group of stars which formed together), asterisms( a group of stars which make a pattern and are not close together). and constellations( a group of stars which make a pattern and are close together). To be able to recognise and draw familiar asterisms and constellations. In ast ...
... and clusters( a tight group of stars which formed together), asterisms( a group of stars which make a pattern and are not close together). and constellations( a group of stars which make a pattern and are close together). To be able to recognise and draw familiar asterisms and constellations. In ast ...
Astronomy in the medieval Islamic world
Islamic astronomy comprises the astronomical developments made in the Islamic world, particularly during the Islamic Golden Age (8th–15th centuries), and mostly written in the Arabic language. These developments mostly took place in the Middle East, Central Asia, Al-Andalus, and North Africa, and later in the Far East and India. It closely parallels the genesis of other Islamic sciences in its assimilation of foreign material and the amalgamation of the disparate elements of that material to create a science with Islamic characteristics. These included Greek, Sassanid, and Indian works in particular, which were translated and built upon. In turn, Islamic astronomy later had a significant influence on Byzantine and European astronomy (see Latin translations of the 12th century) as well as Chinese astronomy and Malian astronomy.A significant number of stars in the sky, such as Aldebaran and Altair, and astronomical terms such as alidade, azimuth, and almucantar, are still referred to by their Arabic names. A large corpus of literature from Islamic astronomy remains today, numbering approximately 10,000 manuscripts scattered throughout the world, many of which have not been read or catalogued. Even so, a reasonably accurate picture of Islamic activity in the field of astronomy can be reconstructed.