Star Trek ObservING List - Adirondack astronomy retreat
... to look at stars that are probably irrelevant. I don’t know about you, but I would love the opportunity to look at a star that someone believed was a solar system, with habitable planets in orbit. Have you ever stopped to think that maybe someone really lives on that planet? It might not be your bes ...
... to look at stars that are probably irrelevant. I don’t know about you, but I would love the opportunity to look at a star that someone believed was a solar system, with habitable planets in orbit. Have you ever stopped to think that maybe someone really lives on that planet? It might not be your bes ...
Table of Contents - Shawnee State University
... - The constellations were totally imaginary creatures, beings, and objects that farmers, poets, and astronomers made up in order to help predict seasons and even save their very lives. - This occurred over the past 6,000 plus years. - The oldest description of the constellations was written by the G ...
... - The constellations were totally imaginary creatures, beings, and objects that farmers, poets, and astronomers made up in order to help predict seasons and even save their very lives. - This occurred over the past 6,000 plus years. - The oldest description of the constellations was written by the G ...
Title: Binary interaction dominates the evolution of massive stars
... powerful explosions, massive stars heat and enrich surrounding gas clouds in which new generations of stars form (4) and drive the chemical evolution of galaxies (5). Massive stars end their lives in luminous explosions, as core-collapse supernovae (CCSNe) or gamma-ray bursts (GRBs), which can be ob ...
... powerful explosions, massive stars heat and enrich surrounding gas clouds in which new generations of stars form (4) and drive the chemical evolution of galaxies (5). Massive stars end their lives in luminous explosions, as core-collapse supernovae (CCSNe) or gamma-ray bursts (GRBs), which can be ob ...
Document
... the first space mission dedicated to astrometry, which operated from 1989 to 1993. The catalogue, published in 1997, contains the positions and parallax of more than 100 000 stars with a precision of 0.001 arcseconds, and proper motions with a precision of 0.001 arcseconds per year. At the time of p ...
... the first space mission dedicated to astrometry, which operated from 1989 to 1993. The catalogue, published in 1997, contains the positions and parallax of more than 100 000 stars with a precision of 0.001 arcseconds, and proper motions with a precision of 0.001 arcseconds per year. At the time of p ...
... period doubling, presence of non-radial modes, etc. An outstanding example is the analysis of Kepler space mission data for the star V445 Lyr recently carried out by Guggenberger et al. (2012). CCD time series of globular clusters have also proven very useful in identifying RRL variables and in esti ...
Planetary Nebulae: Observational Properties, Mimics, and Diagnostics
... Abstract: The total number of true, likely and possible planetary nebulae (PN) now known in the Milky Way is nearly 3000, double the number known a decade ago. The new discoveries are a legacy of the recent availability of wide field, narrowband imaging surveys, primarily in the light of H-alpha. In ...
... Abstract: The total number of true, likely and possible planetary nebulae (PN) now known in the Milky Way is nearly 3000, double the number known a decade ago. The new discoveries are a legacy of the recent availability of wide field, narrowband imaging surveys, primarily in the light of H-alpha. In ...
Nazwy gwiazd nieba północnego o etymologii arabskiej
... Uniwersytet Kazimierza Wielkiego Wydział Humanistyczny Instytut Neofilologii i Lingwistyki Stosowanej ...
... Uniwersytet Kazimierza Wielkiego Wydział Humanistyczny Instytut Neofilologii i Lingwistyki Stosowanej ...
Surface Gravity as a Diagnostic ... Youth Cameron Higby-Naquin Advisor: Eric Jensen
... fusion in its core and attains full hydrostatic equilibrium. The fact that young stars do not possess these two qualities emphasizes the differences between middle aged stars and stars that are still forming. The study of the evolutionary stages that span a star's youth has been a very active field ...
... fusion in its core and attains full hydrostatic equilibrium. The fact that young stars do not possess these two qualities emphasizes the differences between middle aged stars and stars that are still forming. The study of the evolutionary stages that span a star's youth has been a very active field ...
Automated Detection and Analysis of Meteor Events Using Nightly
... Every night we experience the celestial phenomenon of meteors falling to Earth. Meteors are chunks of space debris composed of mostly rock or metal, which light up the night sky and are more popularly known as “shooting stars”. I used an all-sky camera to observe these meteors. The all-sky camera is ...
... Every night we experience the celestial phenomenon of meteors falling to Earth. Meteors are chunks of space debris composed of mostly rock or metal, which light up the night sky and are more popularly known as “shooting stars”. I used an all-sky camera to observe these meteors. The all-sky camera is ...
Distance determination for RAVE stars using stellar models
... The power spectrum is used to measure the power of density perturbations on a certain scale. The current cosmological model predicts a HarrisonZel’dovich spectrum (P (k) ∝ k, where k is the wavenumber). This power spectrum predicts more power on small scale, so there should be more dwarf galaxies th ...
... The power spectrum is used to measure the power of density perturbations on a certain scale. The current cosmological model predicts a HarrisonZel’dovich spectrum (P (k) ∝ k, where k is the wavenumber). This power spectrum predicts more power on small scale, so there should be more dwarf galaxies th ...
Diapositiva 1
... Astrometric End-of-mission errors Gaia Science Performance website The end-of-mission performance depends on the scanning law. A more accurate standard error can be computed by: 1) Multiplying the mean value by a geometrical scaling factor (g), different for each of the five parameters (see figure ...
... Astrometric End-of-mission errors Gaia Science Performance website The end-of-mission performance depends on the scanning law. A more accurate standard error can be computed by: 1) Multiplying the mean value by a geometrical scaling factor (g), different for each of the five parameters (see figure ...
Isotopic composition of Hg and Pt in 5 slowly rotating HgMn stars *
... data. Previous studies of Hg and Pt in samples of HgMn stars often relied on spectra of rather low resolution and low S/N ratio, so that only limited information could be derived from the centroid wavelength of unresolved isotopic blends. In this paper we present the results of a study of the isotop ...
... data. Previous studies of Hg and Pt in samples of HgMn stars often relied on spectra of rather low resolution and low S/N ratio, so that only limited information could be derived from the centroid wavelength of unresolved isotopic blends. In this paper we present the results of a study of the isotop ...
High Precision Parallax Collecting Satellite
... 2,539,913 of brightest stars (~500 visible to naked eye) 99% complete to mV ~ 11.0 90% complete to mV ~ 11.5 ...
... 2,539,913 of brightest stars (~500 visible to naked eye) 99% complete to mV ~ 11.0 90% complete to mV ~ 11.5 ...
SRMP Stars Curriculum - American Museum of Natural History
... linear/log axes. Ask students to estimate first and then use the calculator to check their answers. Leave time for review and questions. ...
... linear/log axes. Ask students to estimate first and then use the calculator to check their answers. Leave time for review and questions. ...
Distance determination for RAVE stars using stellar models
... 2001) will observe up to 109 stars with exquisite astrometric precision. The mission is due to start in 2012, but a final data release will not arrive until near the end of the decade at the earliest. Furthermore, as with any such magnitude limited survey, there will be a significant proportion of s ...
... 2001) will observe up to 109 stars with exquisite astrometric precision. The mission is due to start in 2012, but a final data release will not arrive until near the end of the decade at the earliest. Furthermore, as with any such magnitude limited survey, there will be a significant proportion of s ...
Archaeoastronomical Study of the Main Pyramids of Giza
... We have searched for a correlation between the visual magnitudes of the Orion Belt stars and the most obvious dimensions (that is the volume V or the height h) of the corresponding pyramids. However no correlation has been found in these cases. The situation considerably changed when we considered, ...
... We have searched for a correlation between the visual magnitudes of the Orion Belt stars and the most obvious dimensions (that is the volume V or the height h) of the corresponding pyramids. However no correlation has been found in these cases. The situation considerably changed when we considered, ...
PDF - Department of Statistics
... outliers. Let Yksh denote the resulting test statistic for hold h of star s on telescope k. We now describe a test based on measurements at multiple telescopes which flags a star-hold if Yksh is sufficiently small at each telescope, based on the set of preliminary observations. Suppose the desired f ...
... outliers. Let Yksh denote the resulting test statistic for hold h of star s on telescope k. We now describe a test based on measurements at multiple telescopes which flags a star-hold if Yksh is sufficiently small at each telescope, based on the set of preliminary observations. Suppose the desired f ...
The Probability and Effects of an Asteroid Impact with Earth
... d Cephei has a long history as a variable star, its variability being discovered by John Goodricke in October 1784. His friend Edward Piggot had discovered the variability of the Cepheid Aquilae a month earlier in September 1784. ...
... d Cephei has a long history as a variable star, its variability being discovered by John Goodricke in October 1784. His friend Edward Piggot had discovered the variability of the Cepheid Aquilae a month earlier in September 1784. ...
Exploring the Universe
... telescopes QuickTime™ and a TIFF (Uncompressed) decompressor are needed to see this picture. ...
... telescopes QuickTime™ and a TIFF (Uncompressed) decompressor are needed to see this picture. ...
Proficiency Step #5--
... We tend to think of constellations as a group of related stars that form a pattern, when in fact, most of the constellations consist of stars that are not related—that is, they are varying distances from Earth and their relative positions are simply a coincidence. It might be convenient to note her ...
... We tend to think of constellations as a group of related stars that form a pattern, when in fact, most of the constellations consist of stars that are not related—that is, they are varying distances from Earth and their relative positions are simply a coincidence. It might be convenient to note her ...
CW9_MOST_GSphot_RK_v1
... • exposure time is usually 1.5 sec (range from 0.3 to 1.5 applied) • no images are recovered, the image data is processed on board: a mean background value is removed and the signal is the sum of high signal pixels (exceeding the background and a 20 ADU threshold) • for the brightest guide stars noi ...
... • exposure time is usually 1.5 sec (range from 0.3 to 1.5 applied) • no images are recovered, the image data is processed on board: a mean background value is removed and the signal is the sum of high signal pixels (exceeding the background and a 20 ADU threshold) • for the brightest guide stars noi ...
doc - Pocket Stars
... Orbital paths of inner planets and sun. Time Animation. Black, white, and red star chart colors for normal, bright, and night viewing conditions, respectively. Chart can be rotated to any of the 16 compass points and also flipped along the North - South axis. Chart can be "live, realtime", or static ...
... Orbital paths of inner planets and sun. Time Animation. Black, white, and red star chart colors for normal, bright, and night viewing conditions, respectively. Chart can be rotated to any of the 16 compass points and also flipped along the North - South axis. Chart can be "live, realtime", or static ...
Magnetic fields in O-, B- and A-type stars on the main sequence
... of the magnetic β Cep star V2052 Oph, intensive multisite photometric and spectroscopic campaigns were set up [26], [27]. The outcome of the modelling shows that the magnetic field observed in the star inhibits mixing in its radiative zone. The field strength observed in this star [28] is 6 to 10 high ...
... of the magnetic β Cep star V2052 Oph, intensive multisite photometric and spectroscopic campaigns were set up [26], [27]. The outcome of the modelling shows that the magnetic field observed in the star inhibits mixing in its radiative zone. The field strength observed in this star [28] is 6 to 10 high ...
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... line in C-stars is strong, that of the TiO molecule in oxygen-rich stars of the same effective temperature is even more severe. The lower limit of Li abundance that can be measured is thus higher for O-rich stars than for C-rich stars. In both cases, a Li abundance determination can only be achieved ...
... line in C-stars is strong, that of the TiO molecule in oxygen-rich stars of the same effective temperature is even more severe. The lower limit of Li abundance that can be measured is thus higher for O-rich stars than for C-rich stars. In both cases, a Li abundance determination can only be achieved ...
A very massive runaway star from Cygnus OB2⋆
... sides. In reality, the non-zero cooling time of the shocked stellar wind builds up a thick layer of low-density, high-temperature gas between the reverse shock on the stellar wind and the bow shock. The existence of this thick layer moves the position of the apsis of bow shock to a greater distance ...
... sides. In reality, the non-zero cooling time of the shocked stellar wind builds up a thick layer of low-density, high-temperature gas between the reverse shock on the stellar wind and the bow shock. The existence of this thick layer moves the position of the apsis of bow shock to a greater distance ...
Star catalogue
A star catalogue, or star catalog, is an astronomical catalogue that lists stars. In astronomy, many stars are referred to simply by catalogue numbers. There are a great many different star catalogues which have been produced for different purposes over the years, and this article covers only some of the more frequently quoted ones. Star catalogues were compiled by many different ancient peoples, including the Babylonians, Greeks, Chinese, Persians, and Arabs. Most modern catalogues are available in electronic format and can be freely downloaded from NASA's Astronomical Data Center.Completeness and accuracy is described by the weakest apparent magnitude V (largest number) and the accuracy of the positions.