![Sidereus Nuncius (Print Translation)](http://s1.studyres.com/store/data/007747021_2-5ad42d8679948a2811fb7c3979bb31a5-300x300.png)
Sidereus Nuncius (Print Translation)
... debate about the Galaxy or Milky Way and to have made manifest its essence to the senses as well as the intellect; and it will be pleasing and most glorious to demonstrate clearly that the substance of those stars called nebulous up to now by all astronomers is very different from what has hitherto ...
... debate about the Galaxy or Milky Way and to have made manifest its essence to the senses as well as the intellect; and it will be pleasing and most glorious to demonstrate clearly that the substance of those stars called nebulous up to now by all astronomers is very different from what has hitherto ...
Chemical composition of B-type supergiants in the OB8, OB10
... association. The radial velocity for OB8-76 differs by some 70 kms−1 which could suggest the star is part of a binary system, or has a peculiar velocities within the OB association. Being part of a binary does not necessarily exclude using the star in a detailed model atmosphere analysis as the comp ...
... association. The radial velocity for OB8-76 differs by some 70 kms−1 which could suggest the star is part of a binary system, or has a peculiar velocities within the OB association. Being part of a binary does not necessarily exclude using the star in a detailed model atmosphere analysis as the comp ...
A New Science Strategy for Space Astronomy and Astrophysics
... next decade,1 prepared by a committee under the leadership of John Bahcall. Like previous decadal studies in this field, the report identified in priority order the most important scientific programs and projects for both groundand space-based research. It recommended a single large initiative for s ...
... next decade,1 prepared by a committee under the leadership of John Bahcall. Like previous decadal studies in this field, the report identified in priority order the most important scientific programs and projects for both groundand space-based research. It recommended a single large initiative for s ...
solon irving bailey - National Academy of Sciences
... elevated station might be maintained. Thus the problem was solved by the construction of a mule-path to the summit. A vivid description of this project is given in Harvard Annals 39, the first volume of the Peruvian Meteorology. After Professor Bailey and his party had passed eight consecutive days ...
... elevated station might be maintained. Thus the problem was solved by the construction of a mule-path to the summit. A vivid description of this project is given in Harvard Annals 39, the first volume of the Peruvian Meteorology. After Professor Bailey and his party had passed eight consecutive days ...
Standardized Test Prep Chapter 30 Multiple Choice, continued
... The Final Stages of a Sunlike Star, continued Novas and Supernovas nova a star that suddenly becomes brighter • Some white dwarfs revolve around red giants. When this happeneds, the gravity of the whit dwarf may capture gases from the red giant. • As these gases accumulate on the surface of the whit ...
... The Final Stages of a Sunlike Star, continued Novas and Supernovas nova a star that suddenly becomes brighter • Some white dwarfs revolve around red giants. When this happeneds, the gravity of the whit dwarf may capture gases from the red giant. • As these gases accumulate on the surface of the whit ...
The low-mass dispersed population around the Lupus clouds
... Results. Most of the candidate members of a possible dispersed population around Lupus 1 are found to be background K or early M giants. However, about half of the observed members of Lupus 3 are confirmed as young objects, including both low-mass stars and brown dwarfs. The distributed population i ...
... Results. Most of the candidate members of a possible dispersed population around Lupus 1 are found to be background K or early M giants. However, about half of the observed members of Lupus 3 are confirmed as young objects, including both low-mass stars and brown dwarfs. The distributed population i ...
13.1 Galaxy Evolution: Introduction
... interstellar medium. It also turns out that this is the estimated timescale of active galactic nucleus episodes, and it's not obvious whether this is coincidence or not. The internal timescales within galaxies are commensurate with their free-fall timescales, which would be ...
... interstellar medium. It also turns out that this is the estimated timescale of active galactic nucleus episodes, and it's not obvious whether this is coincidence or not. The internal timescales within galaxies are commensurate with their free-fall timescales, which would be ...
Astronomy Astrophysics Gaia-ESO Survey: The analysis of high-resolution The
... 2. The FGK-type stars observed with UVES The main late-type targets observed with UVES in the Gaia-ESO Survey are FG-type dwarfs in the solar neighborhood and clump giants in old (age >1 Gyr) and intermediate-age (0.1 Gyr < age < 1 Gyr) open clusters. In addition, the following targets are also pres ...
... 2. The FGK-type stars observed with UVES The main late-type targets observed with UVES in the Gaia-ESO Survey are FG-type dwarfs in the solar neighborhood and clump giants in old (age >1 Gyr) and intermediate-age (0.1 Gyr < age < 1 Gyr) open clusters. In addition, the following targets are also pres ...
Star Formation in the Rosette Complex
... A low resolution, single slit investigation by Hensberge et al. (1998) of 2 members and 3 field stars in the region of NGC 2244 yielded evidence that these were chemically peculiar, possibly magnetic stars. Hensberge et al. (2000) performed spectroscopic analysis of the binary member V578 Mon, which ...
... A low resolution, single slit investigation by Hensberge et al. (1998) of 2 members and 3 field stars in the region of NGC 2244 yielded evidence that these were chemically peculiar, possibly magnetic stars. Hensberge et al. (2000) performed spectroscopic analysis of the binary member V578 Mon, which ...
The Kuiper Belt Explored by Serendipitous Stellar Occultations
... of planetary rings and arcs around Uranus (1977) and Neptune (1984). Stellar occultations by known members of the Kuiper belt are a new challenge, since they generally involve the use of fainter stars, and above all, bodies that subtend very small angles. Typically, a Kuiper belt object (KBO) subten ...
... of planetary rings and arcs around Uranus (1977) and Neptune (1984). Stellar occultations by known members of the Kuiper belt are a new challenge, since they generally involve the use of fainter stars, and above all, bodies that subtend very small angles. Typically, a Kuiper belt object (KBO) subten ...
Ferraro et al. 2006
... radial distribution of BSS is indistinguishable from that of the “normal” cluster population, in contrast to what found in most of the typical GCs (see references in Dalessandro et al. 2008a) ...
... radial distribution of BSS is indistinguishable from that of the “normal” cluster population, in contrast to what found in most of the typical GCs (see references in Dalessandro et al. 2008a) ...
Carbon, nitrogen and oxygen abundances in
... papers (Lyubimkov et al. 2000, 2002; Lyubimkov, Rostopchin & Lambert 2004; Lyubimkov et al. 2005, hereinafter Papers I, II, III and IV, respectively). In particular, in Paper III we determined from He I lines the helium abundance He/H and the projected rotational velocity v sin i for 102 B stars. Th ...
... papers (Lyubimkov et al. 2000, 2002; Lyubimkov, Rostopchin & Lambert 2004; Lyubimkov et al. 2005, hereinafter Papers I, II, III and IV, respectively). In particular, in Paper III we determined from He I lines the helium abundance He/H and the projected rotational velocity v sin i for 102 B stars. Th ...
Studies of molecular clouds at the Galactic centre Roland Karlsson DECLINATION (B1950)
... spiral galaxy, with a central bar structure, that harbours a few hundred billion stars and large amounts of gas and dust. At the centre of the Galaxy, a 4 million solar mass supermassive black hole resides, surrounded by a dense core of millions of stars, as well as molecular and dust clouds. The Ga ...
... spiral galaxy, with a central bar structure, that harbours a few hundred billion stars and large amounts of gas and dust. At the centre of the Galaxy, a 4 million solar mass supermassive black hole resides, surrounded by a dense core of millions of stars, as well as molecular and dust clouds. The Ga ...
maximum likelihood fitting of tidal streams with application
... SDSS has been expanded to include a new project, SEGUE. This extension will eventually include 3500 deg2 of new imaging data which is collected in 2.5 wide great circles on the sky, but these great circles do not in general match those laid out on the sky for the SDSS, and they are not adjacent to ...
... SDSS has been expanded to include a new project, SEGUE. This extension will eventually include 3500 deg2 of new imaging data which is collected in 2.5 wide great circles on the sky, but these great circles do not in general match those laid out on the sky for the SDSS, and they are not adjacent to ...
Astrometry of Asteroids
... GSC, so many that the full catalog requires two CD-ROMS to hold it. The GSC has been one of the most useful catalogs for astronomers in recent years. There are so many stars in it, scattered all over the sky, that you can practically count on having several GSC stars with known coordinates anywhere ...
... GSC, so many that the full catalog requires two CD-ROMS to hold it. The GSC has been one of the most useful catalogs for astronomers in recent years. There are so many stars in it, scattered all over the sky, that you can practically count on having several GSC stars with known coordinates anywhere ...
the Local Group - Simon P Driver
... tides • the maths for distortions of extended galaxies made up of many stars are hard, but we can picture the potential wells – start with the 5 Lagrangian points, which show stable positions e.g. for satellites launched from the Earth ...
... tides • the maths for distortions of extended galaxies made up of many stars are hard, but we can picture the potential wells – start with the 5 Lagrangian points, which show stable positions e.g. for satellites launched from the Earth ...
Document
... A majority of the galaxies in rich clusters are ellipticals, not spirals. There is often a single, very large central elliptical galaxy (sometimes two) that is cannibalizing other galaxies in its vicinity, growing bigger with time (see figure, top). X-ray observations of rich clusters reveal a hot i ...
... A majority of the galaxies in rich clusters are ellipticals, not spirals. There is often a single, very large central elliptical galaxy (sometimes two) that is cannibalizing other galaxies in its vicinity, growing bigger with time (see figure, top). X-ray observations of rich clusters reveal a hot i ...
Stellar kinematics
Stellar kinematics is the study of the movement of stars without needing to understand how they acquired their motion. This differs from stellar dynamics, which takes into account gravitational effects. The motion of a star relative to the Sun can provide useful information about the origin and age of a star, as well as the structure and evolution of the surrounding part of the Milky Way.In astronomy, it is widely accepted that most stars are born within molecular clouds known as stellar nurseries. The stars formed within such a cloud compose open clusters containing dozens to thousands of members. These clusters dissociate over time. Stars that separate themselves from the cluster's core are designated as members of the cluster's stellar association. If the remnant later drifts through the Milky Way as a coherent assemblage, then it is termed a moving group.