ncam-program-2016 - Cline Observatory
... worlds, which have accreted an envelope of primordial H/He gas. I will explain the essential role of the NASA Transiting Exoplanet Survey Satellite (TESS), scheduled for launch in 2017. David Charbonneau is a Professor of Astronomy at Harvard University. His research focuses on the discovery and cha ...
... worlds, which have accreted an envelope of primordial H/He gas. I will explain the essential role of the NASA Transiting Exoplanet Survey Satellite (TESS), scheduled for launch in 2017. David Charbonneau is a Professor of Astronomy at Harvard University. His research focuses on the discovery and cha ...
EXPLORATION OF THE KUIPER BELT BY HIGH
... them to diffraction profiles of interplanetary objects. The synthetic profiles depend on two parameters: the object’s radius and its distance from the Sun. The synthetic profile is computed assuming a circular orbit and zero-impact parameter. The parameters of the synthetic profiles given in Table 2 ...
... them to diffraction profiles of interplanetary objects. The synthetic profiles depend on two parameters: the object’s radius and its distance from the Sun. The synthetic profile is computed assuming a circular orbit and zero-impact parameter. The parameters of the synthetic profiles given in Table 2 ...
The Sun - Our Star
... Coronal gas may heat to 40 million K and X-rays and ultraviolet light are emitted. The Sun’s brightness may increase by 1% during an unusually bright flare. Flares blast out large numbers of very energetic charged particles that will take about 3 days to reach Earth. Large solar flares cause spectac ...
... Coronal gas may heat to 40 million K and X-rays and ultraviolet light are emitted. The Sun’s brightness may increase by 1% during an unusually bright flare. Flares blast out large numbers of very energetic charged particles that will take about 3 days to reach Earth. Large solar flares cause spectac ...
Guidestar: February, 2015 - Houston Astronomical Society
... t is time for the gate combination change and I will be changing the combination on February 28, 2015 please be sure to see me at the February 6th meeting to get your 2015 code. We will soon be putting the site orientation program on the website. In doing so we are going to ask everyone who already ...
... t is time for the gate combination change and I will be changing the combination on February 28, 2015 please be sure to see me at the February 6th meeting to get your 2015 code. We will soon be putting the site orientation program on the website. In doing so we are going to ask everyone who already ...
Star and Earth Chemistry Lecture Notes (PDF
... Star supported against gravity by thermal pressure of hot gas - T ∝ M / R Main sequence stars are not contracting or expanding much (in hydrostatic balance) Rate of fuel burning (lifetime) depends on L and M Star Death (how heavier elements are formed) ...
... Star supported against gravity by thermal pressure of hot gas - T ∝ M / R Main sequence stars are not contracting or expanding much (in hydrostatic balance) Rate of fuel burning (lifetime) depends on L and M Star Death (how heavier elements are formed) ...
Contraction of a Magnetized Rotating Cloud
... Three models have the same central density rc=4rdiss, but different angular momenta as 2.25 × 1049 (left), 4.18 × 1049 (middle), and 9.99 × 1049 g cm2 (right), and masses as 2.77 × 1031 (left), 3.45 × 1031 (middle), and 4.97 × 1031 g (right). ...
... Three models have the same central density rc=4rdiss, but different angular momenta as 2.25 × 1049 (left), 4.18 × 1049 (middle), and 9.99 × 1049 g cm2 (right), and masses as 2.77 × 1031 (left), 3.45 × 1031 (middle), and 4.97 × 1031 g (right). ...
P10263v1.2 Lab 6 Text
... When finding the distance to the Pleiades cluster, we used the spectral type information for individual stars in the cluster. That information translated into an estimate of the absolute luminosity. Combined with the measured apparent luminosity and an estimate of “X”, we were able to find the dista ...
... When finding the distance to the Pleiades cluster, we used the spectral type information for individual stars in the cluster. That information translated into an estimate of the absolute luminosity. Combined with the measured apparent luminosity and an estimate of “X”, we were able to find the dista ...
aaaa - Londonderry School District
... • If too much greater - the surface temperature differences would be too great. Ice and water vapor would travel to the poles, no water anywhere else. • If much less - the habitable zone would shrink in size (think narrow band around equator) • The tilt also allows the seasons to occur. ...
... • If too much greater - the surface temperature differences would be too great. Ice and water vapor would travel to the poles, no water anywhere else. • If much less - the habitable zone would shrink in size (think narrow band around equator) • The tilt also allows the seasons to occur. ...
CCD BVRI and 2MASS Photometry of the Poorly Studied Open
... around the cluster center. The main photometric parameters have been estimated and compared with the results that determined for the cluster using JHKs 2MASS photometric database. The cluster’s diameter is estimated to be 10 arcmin; the reddening E(B-V)= 0.68 ± 0.10 mag, E(J-H)= 0.21 ± 0.10 mag, the ...
... around the cluster center. The main photometric parameters have been estimated and compared with the results that determined for the cluster using JHKs 2MASS photometric database. The cluster’s diameter is estimated to be 10 arcmin; the reddening E(B-V)= 0.68 ± 0.10 mag, E(J-H)= 0.21 ± 0.10 mag, the ...
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... The astronomers soon determined that shifting the spectrum of SCP 06F6 similarly aligned it with the others. In the end, it turned out that all six supernovae are siblings, and that they all have ...
... The astronomers soon determined that shifting the spectrum of SCP 06F6 similarly aligned it with the others. In the end, it turned out that all six supernovae are siblings, and that they all have ...
Milky Way I
... – Gas – ionized hydrogen (H II), atomic hydrogen (H I), molecular hydrogen (densest and coldest), stellar ejecta – Dust – Stars and failed stars (brown dwarfs) – Stellar remnants – black holes, neutron stars, white dwarfs ...
... – Gas – ionized hydrogen (H II), atomic hydrogen (H I), molecular hydrogen (densest and coldest), stellar ejecta – Dust – Stars and failed stars (brown dwarfs) – Stellar remnants – black holes, neutron stars, white dwarfs ...
L87 THE b PICTORIS MOVING GROUP B. ZUCkERMAN AND
... like the Pleiades. This is also apparent from the existence of many wide binaries (∼3000 AU) and the large velocity dispersion of Table 1 stars compared to Pleiades stars (velocity dispersion of 0.42 km s!1 per axis; Jones 1970). The age of the b Pic moving group may be derived from the properties o ...
... like the Pleiades. This is also apparent from the existence of many wide binaries (∼3000 AU) and the large velocity dispersion of Table 1 stars compared to Pleiades stars (velocity dispersion of 0.42 km s!1 per axis; Jones 1970). The age of the b Pic moving group may be derived from the properties o ...
Galaxy Evolution
... All measurements are within r500. Overplotted are the best-fit relations for the Vikhlinin et al. (2006) sample gas mass fractions and for our stellar mass fractions. The WMAP 1 ! confidence region for the universal baryon fraction from Spergel et al. (2006) is shown for comparison, and the right-ha ...
... All measurements are within r500. Overplotted are the best-fit relations for the Vikhlinin et al. (2006) sample gas mass fractions and for our stellar mass fractions. The WMAP 1 ! confidence region for the universal baryon fraction from Spergel et al. (2006) is shown for comparison, and the right-ha ...
Colours of the rainbow
... A rainbow is caused by the refraction or bending of sunlight as it passes through raindrops. ...
... A rainbow is caused by the refraction or bending of sunlight as it passes through raindrops. ...
Spring Constellations
... centaur’s front hooves, Rigil Kentaurus and Hadar, also called ά- and β-Centauri. Our closest neighbor, Proxima Centauri, a red dwarf star 4 LY away, is due south of alpha Centauri. It’s so faint that it can’t be seen with the naked eye. It’s only about 5 times larger than the earth. ...
... centaur’s front hooves, Rigil Kentaurus and Hadar, also called ά- and β-Centauri. Our closest neighbor, Proxima Centauri, a red dwarf star 4 LY away, is due south of alpha Centauri. It’s so faint that it can’t be seen with the naked eye. It’s only about 5 times larger than the earth. ...
Notes in pdf format
... The principle of conservation of energy states that energy cannot be created or destroyed, although it can be changed from one form to another. Thus in any isolated or closed system, the sum of all forms of energy remains constant. The energy of the system may be interconverted among many different ...
... The principle of conservation of energy states that energy cannot be created or destroyed, although it can be changed from one form to another. Thus in any isolated or closed system, the sum of all forms of energy remains constant. The energy of the system may be interconverted among many different ...
Lab 6
... class of variable stars called the Cepheids. These stars vary in brightness in a cyclical pattern, and are bright enough to be seen within another galaxy. Leavitt determined that absolute magnitude (M) of a Cepheid variable was mathematically related to the period (P, measured in days) of its bright ...
... class of variable stars called the Cepheids. These stars vary in brightness in a cyclical pattern, and are bright enough to be seen within another galaxy. Leavitt determined that absolute magnitude (M) of a Cepheid variable was mathematically related to the period (P, measured in days) of its bright ...
Here
... disk, then subsequently spirals onto the star (see § 11.3 below). The only stipulation is that each fluid element’s thermal plus kinetic energies be relatively small once it joins the protostar. For example, the star cannot be rotating close to breakup speed. The T Tauri observations indicate, in fa ...
... disk, then subsequently spirals onto the star (see § 11.3 below). The only stipulation is that each fluid element’s thermal plus kinetic energies be relatively small once it joins the protostar. For example, the star cannot be rotating close to breakup speed. The T Tauri observations indicate, in fa ...
Pitt County Schools
... understanding of stars, including our Sun. 5.05 Analyze the basic properties of a star: star’s distance, temperature, luminosity, composition, radius, mass, and radial velocity. Explain clearly the magnitude scale of stars, and its relationship to factors of brightness. Define and calculate absolu ...
... understanding of stars, including our Sun. 5.05 Analyze the basic properties of a star: star’s distance, temperature, luminosity, composition, radius, mass, and radial velocity. Explain clearly the magnitude scale of stars, and its relationship to factors of brightness. Define and calculate absolu ...
AST 341 - Homework I - Solutions
... (AU) and years, instead of meters and seconds (SI), this problem is very simple. The third Kepler’s law states the relation between period (in years) of the orbit and the average distance (ā, in AU), P 2 = ā3 , On the other hand, the relation to the semimajor axis is P 2 ∝ ka3 , with a proportiona ...
... (AU) and years, instead of meters and seconds (SI), this problem is very simple. The third Kepler’s law states the relation between period (in years) of the orbit and the average distance (ā, in AU), P 2 = ā3 , On the other hand, the relation to the semimajor axis is P 2 ∝ ka3 , with a proportiona ...
- saspcsus
... planets. The number of stars that can be seen through telescopes is dramatically greater than the number that can be seen by the unaided eye. D. Students know that Earth is one of several planets that orbit the Sun and that the Moon orbits Earth. E. Students know the position of the Sun in the sky c ...
... planets. The number of stars that can be seen through telescopes is dramatically greater than the number that can be seen by the unaided eye. D. Students know that Earth is one of several planets that orbit the Sun and that the Moon orbits Earth. E. Students know the position of the Sun in the sky c ...
Geoscience
... New Earth is formed near what feature? For those of you who like to split hairs, the age of the atoms are the same. We speak of the time when the molten material hardened into stone. a. Subduction zone c. Lithosphere b. Mid-ocean ridge d. Epicenters Plates tend to move about the Earth. Why do they ...
... New Earth is formed near what feature? For those of you who like to split hairs, the age of the atoms are the same. We speak of the time when the molten material hardened into stone. a. Subduction zone c. Lithosphere b. Mid-ocean ridge d. Epicenters Plates tend to move about the Earth. Why do they ...
Canis Majoris
... Canis Majoris is the largest star that has so far been discovered. When viewed from earth it’s very tiny, which means it has a very small apparent magnitude. Canis Majoris is so large that you could fit about seven quadrillion earths inside of it. To put this into perspective, if earth were the size ...
... Canis Majoris is the largest star that has so far been discovered. When viewed from earth it’s very tiny, which means it has a very small apparent magnitude. Canis Majoris is so large that you could fit about seven quadrillion earths inside of it. To put this into perspective, if earth were the size ...
IK Pegasi
IK Pegasi (or HR 8210) is a binary star system in the constellation Pegasus. It is just luminous enough to be seen with the unaided eye, at a distance of about 150 light years from the Solar System.The primary (IK Pegasi A) is an A-type main-sequence star that displays minor pulsations in luminosity. It is categorized as a Delta Scuti variable star and it has a periodic cycle of luminosity variation that repeats itself about 22.9 times per day. Its companion (IK Pegasi B) is a massive white dwarf—a star that has evolved past the main sequence and is no longer generating energy through nuclear fusion. They orbit each other every 21.7 days with an average separation of about 31 million kilometres, or 19 million miles, or 0.21 astronomical units (AU). This is smaller than the orbit of Mercury around the Sun.IK Pegasi B is the nearest known supernova progenitor candidate. When the primary begins to evolve into a red giant, it is expected to grow to a radius where the white dwarf can accrete matter from the expanded gaseous envelope. When the white dwarf approaches the Chandrasekhar limit of 1.44 solar masses (M☉), it may explode as a Type Ia supernova.