
The complex planetary synchronization structure of the solar system
... set of gravitational frequencies, and many of them (e.g. within the range between 3 yr and 100 yr) can be approximately constructed as harmonics of a base period of ∼178.38 yr; (3) solar and climate records are also characterized by planetary harmonics from the monthly to the millennia time scales. ...
... set of gravitational frequencies, and many of them (e.g. within the range between 3 yr and 100 yr) can be approximately constructed as harmonics of a base period of ∼178.38 yr; (3) solar and climate records are also characterized by planetary harmonics from the monthly to the millennia time scales. ...
Chapter 10
... are thought to be fragments of planetesimals • For this connection to be established, differentiation needed to occur in large asteroids • Fragmentation of these early large asteroids (planetesimals) through collisions created the stony and iron asteroids we see today • Asteroid belt is the result o ...
... are thought to be fragments of planetesimals • For this connection to be established, differentiation needed to occur in large asteroids • Fragmentation of these early large asteroids (planetesimals) through collisions created the stony and iron asteroids we see today • Asteroid belt is the result o ...
Untitled [Charles Kolb on Astronomy and Empire in the - H-Net
... class” (p. 21). The ceque system includes a complex sewhich has twelve months of thirty days (a total of 360 ries of shrines and imaginary lines that radiated out from days). The commoners used the simple lunar calendar as the center of Cuzco and had astronomical, calendric, and well as independent ...
... class” (p. 21). The ceque system includes a complex sewhich has twelve months of thirty days (a total of 360 ries of shrines and imaginary lines that radiated out from days). The commoners used the simple lunar calendar as the center of Cuzco and had astronomical, calendric, and well as independent ...
... possible to specify Te as a function of ionization potential (IP) of the ion concerned. This can be used for all observed ions, increasing the accuracy of the ionic abundances found. This has been done for 8 nebulae and the results are given in § 3. A comparison of the new abundances with earlier wo ...
The early stages of planet formation Ormel, Christiaan Wessel
... of diverse physical processes — complex as well as fascinating. It requires, first of all, to realize what planets really are. For centuries, humans were mystified by the ‘wandering stars,’ moving relative to a sky composed of thousands of fixed stars that could be seen in full glory on dark nights ...
... of diverse physical processes — complex as well as fascinating. It requires, first of all, to realize what planets really are. For centuries, humans were mystified by the ‘wandering stars,’ moving relative to a sky composed of thousands of fixed stars that could be seen in full glory on dark nights ...
chapter 14 - Astronomy
... 2. Two types of pulsating stars are especially important to astronomers because they can be used as distance indicators: the Cepheid variables (with periods between 1 and 100 days) and the RR Lyrae variables (with periods shorter than one day). 3. The oscillations of the star’s outer layers result f ...
... 2. Two types of pulsating stars are especially important to astronomers because they can be used as distance indicators: the Cepheid variables (with periods between 1 and 100 days) and the RR Lyrae variables (with periods shorter than one day). 3. The oscillations of the star’s outer layers result f ...
The Solar System and Beyond
... wide4,5. One of these, the “Local Cloud”, is presently traversed by the Sun. ...
... wide4,5. One of these, the “Local Cloud”, is presently traversed by the Sun. ...
Name
... then the “ADVANCED” tab to answer the following questions. Feel free to enjoy any of the pictures you see, and click on some of the other links if you have extra time. Click on the Egyptian link. 1. How is Re usually portrayed? 2. Where did we get the atmosphere and the clouds from? ...
... then the “ADVANCED” tab to answer the following questions. Feel free to enjoy any of the pictures you see, and click on some of the other links if you have extra time. Click on the Egyptian link. 1. How is Re usually portrayed? 2. Where did we get the atmosphere and the clouds from? ...
The first focused hard X-ray images of the sun with
... asymptotes toward a maximum of 400 counts s−1 per telescope as the incident count rate increases. In practice this can mean that fainter secondary spectral components (e.g., hot plasma from above an active region or non-thermal emissions from accelerated electrons) may produce small numbers of obser ...
... asymptotes toward a maximum of 400 counts s−1 per telescope as the incident count rate increases. In practice this can mean that fainter secondary spectral components (e.g., hot plasma from above an active region or non-thermal emissions from accelerated electrons) may produce small numbers of obser ...
Solar system formation by accretion has no observational evidence
... extended phase may therefore exist in the nebula during which the small particle component is kept alive through collisions driven by turbulence which frustrates growth to planetesimals until conditions are more favorable for one or more reasons.”17 This ‘extended phase’ has been detected neither em ...
... extended phase may therefore exist in the nebula during which the small particle component is kept alive through collisions driven by turbulence which frustrates growth to planetesimals until conditions are more favorable for one or more reasons.”17 This ‘extended phase’ has been detected neither em ...
2 GCOM-W
... sampling interval are indicated in Table 2. Basic concept is almost identical to that of AMSR-E: conical scanning system with large-size offset parabolic antenna, feed horn cluster to realize multi-frequency observation, external calibration with two temperature standards, and total-power radiometer ...
... sampling interval are indicated in Table 2. Basic concept is almost identical to that of AMSR-E: conical scanning system with large-size offset parabolic antenna, feed horn cluster to realize multi-frequency observation, external calibration with two temperature standards, and total-power radiometer ...
Century-Long Monitoring of Solar Irradiance and Earth`s Albedo
... earth orbit (LEO) where oxygen densities are 105−6 cm−3 in typical models, but oxygen concentrations in GSO are some 105 times smaller. Instead, in GSO, high energy particles and photons are the larger concern. For example, the absorptance (1 minus albedo) of white paints commonly used on spacecraft ...
... earth orbit (LEO) where oxygen densities are 105−6 cm−3 in typical models, but oxygen concentrations in GSO are some 105 times smaller. Instead, in GSO, high energy particles and photons are the larger concern. For example, the absorptance (1 minus albedo) of white paints commonly used on spacecraft ...
Advanced Composition Explorer

Advanced Composition Explorer (ACE) is a NASA Explorers program Solar and space exploration mission to study matter comprising energetic particles from the solar wind, the interplanetary medium, and other sources. Real-time data from ACE is used by the NOAA Space Weather Prediction Center to improve forecasts and warnings of solar storms. The ACE robotic spacecraft was launched August 25, 1997 and entered a Lissajous orbit close to the L1 Lagrangian point (which lies between the Sun and the Earth at a distance of some 1.5 million km from the latter) on December 12, 1997. The spacecraft is currently operating at that orbit. Because ACE is in a non-Keplerian orbit, and has regular station-keeping maneuvers, the orbital parameters at right are only approximate. The spacecraft is still in generally good condition in 2015, and is projected to have enough fuel to maintain its orbit until 2024. NASA Goddard Space Flight Center managed the development and integration of the ACE spacecraft.