Comet Kirch in Art and Astronomy
... Lieve Pietersz Verschuier (1627-1686) was a Dutch Golden Age artist and a close friend of Jan Vermeer from Utrecht. His paintings have mainly marine motifs and today are regarded as historical illustrations of shipbuilding during the 17th century. This painting depicts an observation of the Kirch Co ...
... Lieve Pietersz Verschuier (1627-1686) was a Dutch Golden Age artist and a close friend of Jan Vermeer from Utrecht. His paintings have mainly marine motifs and today are regarded as historical illustrations of shipbuilding during the 17th century. This painting depicts an observation of the Kirch Co ...
11 01 04 Portable M Class Astro
... rapid tip/tilt image stabilization. These telescopes are not only useful for recreational astrophotography, but also for the many science projects that utilize CCD cameras and other sensors for astrometric, photometric, and spectrographic observations. Everyone, scientists included, appreciate large ...
... rapid tip/tilt image stabilization. These telescopes are not only useful for recreational astrophotography, but also for the many science projects that utilize CCD cameras and other sensors for astrometric, photometric, and spectrographic observations. Everyone, scientists included, appreciate large ...
1 Globular Cluster Systems - McMaster Physics and Astronomy
... account of reddening, since the presence and e ect of interstellar dust was unknown then; the result was to overestimate the distances for most clusters and thus to elongate their whole distribution along the line of sight (roughly, the X axis). (3) The fundamental distance scale used by Shapley { e ...
... account of reddening, since the presence and e ect of interstellar dust was unknown then; the result was to overestimate the distances for most clusters and thus to elongate their whole distribution along the line of sight (roughly, the X axis). (3) The fundamental distance scale used by Shapley { e ...
Elliptical Galaxies
... galaxies we know of and this, combined with their apparent simplicity, has made them targets of detailed study, not only so that we can understand their own evolution but also so that they can be used as standard candles to determine distances. The simple structure of elliptical galaxies is reflecte ...
... galaxies we know of and this, combined with their apparent simplicity, has made them targets of detailed study, not only so that we can understand their own evolution but also so that they can be used as standard candles to determine distances. The simple structure of elliptical galaxies is reflecte ...
Selected observation targets at a glance per constellation
... also known as the Great Southern Triangle, are Sirius and Procyon, same stars are also part of the Winter Hexagon, along with Rigel, Aldebaran, Capella, Pollux and Castor. β Orionis, Beta Orionis, Rigel. 7th (6th) brightest in sky. Blue-white supergiant, class B, composed of three stars. Also classi ...
... also known as the Great Southern Triangle, are Sirius and Procyon, same stars are also part of the Winter Hexagon, along with Rigel, Aldebaran, Capella, Pollux and Castor. β Orionis, Beta Orionis, Rigel. 7th (6th) brightest in sky. Blue-white supergiant, class B, composed of three stars. Also classi ...
Star Formation in the Milky Way and Nearby Galaxies Further
... galaxy formation and evolution, however, it is also a subject at the root of astrophysics on its largest scales. The past decade has witnessed an unprecedented stream of new observational information on star formation on all scales, thanks in no small part to new facilities such as the Galaxy Evolut ...
... galaxy formation and evolution, however, it is also a subject at the root of astrophysics on its largest scales. The past decade has witnessed an unprecedented stream of new observational information on star formation on all scales, thanks in no small part to new facilities such as the Galaxy Evolut ...
Infrared Astronomy
... In other words the experiment in which infrared radiation was discovered was in fact an astronomical measurement. Astronomers were active in the infrared detector developments in the early years as well as they are today. Infrared astronomy was introduced in Hungary by Lajos G. Balázs in the 1980s w ...
... In other words the experiment in which infrared radiation was discovered was in fact an astronomical measurement. Astronomers were active in the infrared detector developments in the early years as well as they are today. Infrared astronomy was introduced in Hungary by Lajos G. Balázs in the 1980s w ...
Full Program with Abstracts - CIERA
... understood. Disc migration is probably the dominant scenario but it cannot explain the observed population of hot Jupiters. Dynamical models involving the influence of an additional planetary or stellar companion through scattering or Kozai-Lidov mechanisms could also explain planetary migration. Th ...
... understood. Disc migration is probably the dominant scenario but it cannot explain the observed population of hot Jupiters. Dynamical models involving the influence of an additional planetary or stellar companion through scattering or Kozai-Lidov mechanisms could also explain planetary migration. Th ...
CoRoT III programme
... First it highlights the major successes and the discoveries CoRoT has obtained during these five years, as a pioneer mission. It summarises the global observing programme, and what has been achieved since the launch. It also gives some indications of the international impact of the mission. A list o ...
... First it highlights the major successes and the discoveries CoRoT has obtained during these five years, as a pioneer mission. It summarises the global observing programme, and what has been achieved since the launch. It also gives some indications of the international impact of the mission. A list o ...
Tuomas Kangas
... Apart from the cosmological uses of thermonuclear SNe, understanding SNe is an important part of understanding stellar evolution. Information about the final stages of a massive star can be gleaned from the light curve evolution and spectral features of a SN. Mass loss before the SN results in a cir ...
... Apart from the cosmological uses of thermonuclear SNe, understanding SNe is an important part of understanding stellar evolution. Information about the final stages of a massive star can be gleaned from the light curve evolution and spectral features of a SN. Mass loss before the SN results in a cir ...
act_science_bellringers
... 29. Based on Fact 5 and Student 1’s discussion, which of the 3 stars in the Algol system, if any, was most likely the first to become an MS star? A. Algol A B. Algol B C. Algol C D. The 3 stars became MS stars at the same time. 30. Based on Fact 5, would Student 2 agree that by the time Algol A stop ...
... 29. Based on Fact 5 and Student 1’s discussion, which of the 3 stars in the Algol system, if any, was most likely the first to become an MS star? A. Algol A B. Algol B C. Algol C D. The 3 stars became MS stars at the same time. 30. Based on Fact 5, would Student 2 agree that by the time Algol A stop ...
104-cm Sampurnanand Telescope
... Fast photometer at ARIES (see Figure 3.4) is functional since last five years. This is a PMT based device and is capable of detecting light variation of 0.2 mmag in good sky conditions. This instrument is well suited for short period ( minutes) and small amplitude ( mmag) variability work for bright ...
... Fast photometer at ARIES (see Figure 3.4) is functional since last five years. This is a PMT based device and is capable of detecting light variation of 0.2 mmag in good sky conditions. This instrument is well suited for short period ( minutes) and small amplitude ( mmag) variability work for bright ...
Jul y 10-12,
... IGR J17091-3624 is a black hole system which has very recently attracted the interest in the scientific community as it is the first system to show some of the bizarre, high-amplitude, highly-structured X-ray variability only seen before in the extremely energetic black hole system GRS 1915+105. In ...
... IGR J17091-3624 is a black hole system which has very recently attracted the interest in the scientific community as it is the first system to show some of the bizarre, high-amplitude, highly-structured X-ray variability only seen before in the extremely energetic black hole system GRS 1915+105. In ...
A Universal Stellar Initial Mass Function? A Critical Look Further
... Way! Elmegreen & Scalo (2006) provide a detailed exploration of the degeneracies involved in inferring a stellar population’s IMF from its measured PDMF and adopted SFH. It is somewhat disconcerting that the break from the Salpeter law identified in many IMF studies needs to be invoked near the plac ...
... Way! Elmegreen & Scalo (2006) provide a detailed exploration of the degeneracies involved in inferring a stellar population’s IMF from its measured PDMF and adopted SFH. It is somewhat disconcerting that the break from the Salpeter law identified in many IMF studies needs to be invoked near the plac ...
The Lupus clouds - European Southern Observatory
... evolution and perhaps the origin of the complex. The entire variety of objects related to the various stages of early stellar evolution are represented in Lupus, including some of the best studied T Tauri stars like RU Lup. The determination of many properties of the clouds, as well as their associa ...
... evolution and perhaps the origin of the complex. The entire variety of objects related to the various stages of early stellar evolution are represented in Lupus, including some of the best studied T Tauri stars like RU Lup. The determination of many properties of the clouds, as well as their associa ...
Unfolding the Milky Way bulge - International Max Planck Research
... K s,0 luminosity functions for representative fields at b = −1◦ (left panels) and b = +1◦ (right panels). The red solid line shows the best fit to each distribution while the dashed line shows the individual Gaussian fits to the RC and to the additional peak when detected. . . . . . . . . . . . . . ...
... K s,0 luminosity functions for representative fields at b = −1◦ (left panels) and b = +1◦ (right panels). The red solid line shows the best fit to each distribution while the dashed line shows the individual Gaussian fits to the RC and to the additional peak when detected. . . . . . . . . . . . . . ...
The COMPLETE Survey of Star-Forming Regions
... Over the next five years, a series of events will conspire to make a “COMPLETE” Survey possible. 1. The entire NASA 2 Micron All Sky Survey (2MASS) survey will be released. Lombardi & Alves (2001) have already shown, using early 2MASS data, that an improved version of the NICE method (NICER) can pro ...
... Over the next five years, a series of events will conspire to make a “COMPLETE” Survey possible. 1. The entire NASA 2 Micron All Sky Survey (2MASS) survey will be released. Lombardi & Alves (2001) have already shown, using early 2MASS data, that an improved version of the NICE method (NICER) can pro ...
Hipparcos
Hipparcos was a scientific satellite of the European Space Agency (ESA), launched in 1989 and operated until 1993. It was the first space experiment devoted to precision astrometry, the accurate measurement of the positions of celestial objects on the sky. This permitted the accurate determination of proper motions and parallaxes of stars, allowing a determination of their distance and tangential velocity. When combined with radial-velocity measurements from spectroscopy, this pinpointed all six quantities needed to determine the motion of stars. The resulting Hipparcos Catalogue, a high-precision catalogue of more than 118,200 stars, was published in 1997. The lower-precision Tycho Catalogue of more than a million stars was published at the same time, while the enhanced Tycho-2 Catalogue of 2.5 million stars was published in 2000. Hipparcos ' follow-up mission, Gaia, was launched in 2013.The word ""Hipparcos"" is an acronym for High precision parallax collecting satellite and also a reference to the ancient Greek astronomer Hipparchus of Nicaea, who is noted for applications of trigonometry to astronomy and his discovery of the precession of the equinoxes.