talk.wyse - Johns Hopkins University
... high velocity dispersion – plausibly star cluster of Sgr dSph Available metallicity distribution based on four stars: two radial-velocity members at ~ 0.01 solar (Norris, RW et al. 2010), equal to that of the field halo, and of Sgr debris, two others very metalpoor, at 0.0003 solar ([Fe/H] ~ -3.5) ...
... high velocity dispersion – plausibly star cluster of Sgr dSph Available metallicity distribution based on four stars: two radial-velocity members at ~ 0.01 solar (Norris, RW et al. 2010), equal to that of the field halo, and of Sgr debris, two others very metalpoor, at 0.0003 solar ([Fe/H] ~ -3.5) ...
Hubblecast Episode 68: The Hubble time machine Visual notes 00
... 10. Hubble is still searching the distant Universe for clues about how the Universe formed, and how it has evolved. Several of Hubble’s surveys, for example CANDELS, CLASH, and GOODS, are scanning for distant supernova explosions, objects that are good celestial distance markers. Observations of dis ...
... 10. Hubble is still searching the distant Universe for clues about how the Universe formed, and how it has evolved. Several of Hubble’s surveys, for example CANDELS, CLASH, and GOODS, are scanning for distant supernova explosions, objects that are good celestial distance markers. Observations of dis ...
The Sky
... asterism that is part of the constellation Ursa Major (Great Bear). – Another asterism is the Great Square of Pegasus, which includes three stars from Pegasus and one (Alpheratz) from Andromeda. ...
... asterism that is part of the constellation Ursa Major (Great Bear). – Another asterism is the Great Square of Pegasus, which includes three stars from Pegasus and one (Alpheratz) from Andromeda. ...
Phase: Period Normalization
... From these timings we have also refined the properties of the tertiary component and re-determined its mass and orbital parameters. We subtracted out the best fit parabola which then presumably left us with only the 3rd body light-time effects. A non-linear least squares search was then used on thes ...
... From these timings we have also refined the properties of the tertiary component and re-determined its mass and orbital parameters. We subtracted out the best fit parabola which then presumably left us with only the 3rd body light-time effects. A non-linear least squares search was then used on thes ...
Sky Watcher - Boise Astronomical Society
... Look also for the Cassini Division separating them. Uranus rises in the east around the time Mars and Saturn set in the west. The planet is an easy binocular target and can be glimpsed even with the naked eye under a dark sky. It glows at magnitude +5.8 in the northwestern corner of Cetus the Whale, ...
... Look also for the Cassini Division separating them. Uranus rises in the east around the time Mars and Saturn set in the west. The planet is an easy binocular target and can be glimpsed even with the naked eye under a dark sky. It glows at magnitude +5.8 in the northwestern corner of Cetus the Whale, ...
The Birth, Life, and Death of Stars
... How do massive stars explode? ? What are the remnants of such stellar explosions? What prevents all stars from dying as black holes? What is the minimum mass of a black hole? ? What is role of FSU researchers in answering these questions? ...
... How do massive stars explode? ? What are the remnants of such stellar explosions? What prevents all stars from dying as black holes? What is the minimum mass of a black hole? ? What is role of FSU researchers in answering these questions? ...
Answers to exam style questions
... the error can be identified and carried forward so that the other marks can still be obtained. The log referred to in the equation is ‘base 10’. It is important to know the difference between this and the ‘loge‘ or ‘ln’ button on a calculator. This problem requires the use of the antilog – sometimes ...
... the error can be identified and carried forward so that the other marks can still be obtained. The log referred to in the equation is ‘base 10’. It is important to know the difference between this and the ‘loge‘ or ‘ln’ button on a calculator. This problem requires the use of the antilog – sometimes ...
Measuring the Earth`s Diameter
... This is an easily measurable effect and depends solely on the sharpness of the curvature of the Earth's surface, which is related to the radius of the Earth. This effect, therefore, can be used to measure the size of the Earth. This was realized by an Egyptian astronomer named Eratosthenes about 200 ...
... This is an easily measurable effect and depends solely on the sharpness of the curvature of the Earth's surface, which is related to the radius of the Earth. This effect, therefore, can be used to measure the size of the Earth. This was realized by an Egyptian astronomer named Eratosthenes about 200 ...
Friday Feb 25th, 2000
... period = against the stars) ~ month – Similar to a woman’s cycle – Luna always a female association in all cultures ...
... period = against the stars) ~ month – Similar to a woman’s cycle – Luna always a female association in all cultures ...
Size of the Earth
... This is an easily measurable effect and depends solely on the sharpness of the curvature of the Earth's surface, which is related to the radius of the Earth. This effect, therefore, can be used to measure the size of the Earth. This was realized by an Egyptian astronomer named Eratosthenes about 200 ...
... This is an easily measurable effect and depends solely on the sharpness of the curvature of the Earth's surface, which is related to the radius of the Earth. This effect, therefore, can be used to measure the size of the Earth. This was realized by an Egyptian astronomer named Eratosthenes about 200 ...
Burgess_final - University of Hertfordshire
... "There has been some controversy about identifying young, low mass brown dwarfs in this region. An object of a similar mass was discovered in 2002, but some groups have argued that it is an older, cooler brown dwarf in the foreground coinciding with the line of sight. The fact that we have detected ...
... "There has been some controversy about identifying young, low mass brown dwarfs in this region. An object of a similar mass was discovered in 2002, but some groups have argued that it is an older, cooler brown dwarf in the foreground coinciding with the line of sight. The fact that we have detected ...
Life as a Low
... He in core. 2. Red Supergiant: H fuses to He in shell around He core. 3. Helium Core Burning: He fuses to C in core while H fuses to He in shell. 4. Multiple Shell Burning: Many elements fuse in shells. 5. Supernova leaves Neutron Star behind. Not to scale! ...
... He in core. 2. Red Supergiant: H fuses to He in shell around He core. 3. Helium Core Burning: He fuses to C in core while H fuses to He in shell. 4. Multiple Shell Burning: Many elements fuse in shells. 5. Supernova leaves Neutron Star behind. Not to scale! ...
The Physical Properties of Normal A Stars
... shows the increase in the magnitude of the anomalies for o Peg and Leo, two hot Am stars of which log Si/log Sr is a measure. The solar value is 4.58. Lemke (1989) estimates errors in Teff of +/-150 K in log g of +/-0.2 dex. This translates into abundance errors of order 0.25 dex for the best dete ...
... shows the increase in the magnitude of the anomalies for o Peg and Leo, two hot Am stars of which log Si/log Sr is a measure. The solar value is 4.58. Lemke (1989) estimates errors in Teff of +/-150 K in log g of +/-0.2 dex. This translates into abundance errors of order 0.25 dex for the best dete ...
It is now recognized that the vast majority of ellipticals are of
... • In contrast, E galaxies with close companions often have luminosity profiles which rise above a de Vaucouleurs law at large radii. These features may be plausibly blamed on tidal interactions. • E galaxies in closely interacting systems sometimes exhibit outer isophotes which are visibly eggshaped ...
... • In contrast, E galaxies with close companions often have luminosity profiles which rise above a de Vaucouleurs law at large radii. These features may be plausibly blamed on tidal interactions. • E galaxies in closely interacting systems sometimes exhibit outer isophotes which are visibly eggshaped ...
Power Point Version
... period = against the stars) ~ month – Similar to a woman’s cycle – Luna always a female association in all cultures ...
... period = against the stars) ~ month – Similar to a woman’s cycle – Luna always a female association in all cultures ...
Intelligent life in the Universe
... 4) It produces a large number of chemical reactions At the core of life is aperiodic complexity and not order. A more accurate definition would be: A living objects are a region of order which use energy to maintain their organization against the disruptive force of entropy! ...
... 4) It produces a large number of chemical reactions At the core of life is aperiodic complexity and not order. A more accurate definition would be: A living objects are a region of order which use energy to maintain their organization against the disruptive force of entropy! ...
13 - Joe Griffin Media Ministries
... Retrograde motion is the orbital motion of a body in a direction opposite that which is normal to spatial bodies within a given system. “Retrograde” derives from the Latin words retro, backwards, and gradus, step. In the solar system mostly everything rotates in the same sense: all major planets orb ...
... Retrograde motion is the orbital motion of a body in a direction opposite that which is normal to spatial bodies within a given system. “Retrograde” derives from the Latin words retro, backwards, and gradus, step. In the solar system mostly everything rotates in the same sense: all major planets orb ...
2 Galaxy morphology and classification
... or more. The spheroid is thought to be among the first stellar components to form. The stellar halo is a di↵use, roughly spherical, system of stars and globular clusters that surrounds most large galaxies. It is comprised mostly of old, metal-poor, stars. The halo has little or no net angular moment ...
... or more. The spheroid is thought to be among the first stellar components to form. The stellar halo is a di↵use, roughly spherical, system of stars and globular clusters that surrounds most large galaxies. It is comprised mostly of old, metal-poor, stars. The halo has little or no net angular moment ...
Corvus (constellation)
Corvus is a small constellation in the Southern Celestial Hemisphere. Its name comes from the Latin word ""raven"" or ""crow"". It includes only 11 stars with brighter than 4.02 magnitudes. One of the 48 constellations listed by the 2nd-century astronomer Ptolemy, it remains one of the 88 modern constellations. The four brightest stars, Gamma, Delta, Epsilon, and Beta Corvi from a distinctive quadrilateral in the night sky. The young star Eta Corvi has been found to have two debris disks.