Solar System





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Solar System

The latest articles related to Solar System

Space probe – Introduction

space probe is a scientific space exploration mission in which a robotic spacecraft leaves the gravity well of Earth and approaches the Moon or enters interplanetary or interstellar space (see list of probes by operational status for a list of active probes); The space agencies of the USSR (now Russia and Ukraine), the United States, [...]

Cosmic dust – Introduction

Cosmic dust is a type of dust composed of particles in space which are a few molecules to 0.1& mm in size. Cosmic dust can be further distinguished by its astronomical location; for example: intergalactic dust, interstellar dust, interplanetary dust (such as in the zodiacal cloud) and circumplanetary dust (such as in a planetary ring). [...]

James Clerk Maxwell Telescope – Introduction

James Clerk Maxwell Telescope (JCMT) is an infrared telescope with a primary mirror diameter of 15 metres (16.4 yards), also called a submillimetre-wavelength telescope. It is located at Mauna Kea Observatory in Hawaii. It is the largest astronomical telescope in the world designed specifically to operate in the submillimetre regime (between the far-infrared and the [...]

Naval Observatory Vector Astrometry Subroutines – Structure

Astrometry

The NOVAS library provides three levels of subroutines (functions): basic, utility, and supervisory. Basic-level subroutines supply the values of fundamental variables, such as the nutation angles and the heliocentric positions of solar system bodies for specific epoches. Utility-level subroutines perform transformations, such as those caused by precession, nutation and aberration. Supervisory-level subroutines serve as interfaces [...]

Astronomy – Specific subfields

Astronomy

Solar astronomy The solar system is subdivided into the inner planets, the asteroid belt, and the outer planets. The inner terrestrial planets consist of Mercury, Venus, Earth, and Mars. The outer gas giant planets are Jupiter, Saturn, Uranus, and Neptune. Beyond Neptune lies the Kuiper Belt, and finally the Oort Cloud, which may extend as [...]

Greek astronomy – Hellenistic astronomy

Astronomy

Planetary models and observational astronomy The Eudoxan system had several critical flaws. One was its inability to predict motions exactly. Callippus’ work may have been an attempt to correct this flaw. A related problem is the inability of his models to explain why planets appear to change speed. A third flaw is its inability to [...]

Sounding rocket X-ray astronomy – Introduction

X-ray Astronomy

Sounding rocket X-ray astronomy involves using a sounding rocket to carry an X-ray detector to high altitudes. The first evidence of X-rays from the Sun and of an astronomical X-ray source from the Milky Way (MW), other than the Sun, was detected by a sounding rocket. These rockets have contributed significantly to our understanding of [...]

Galactic astronomy – Introduction

Galactic astronomy is the study of our own Milky Way galaxy and all its contents. This is in contrast to extragalactic astronomy, which is the study of everything outside our galaxy, including all other galaxies. Galactic astronomy should not be confused with galaxy formation and evolution, which is the general study of galaxies, their formation, [...]

Solar mass – Introduction

Gravitational Astronomy

solar mass (begin{smallmatrix}M_odotend{smallmatrix}), , is a standard way to express mass in astronomy, used to describe the masses of other stars and galaxies. It is equal to the mass of the Sun, about two nonillion kilograms or about 332,950 times the mass of the Earth or 1,048 times the mass of Jupiter. :M_{odot}=( 1.98892 pm [...]

Frank J. Low – Infrared astronomy

Infrared Astronomy

He started working at Texas Instruments in 1961, where one of his early projects was the development of a low-temperature thermometer that was developed using a germanium semiconductor that had been doped with small quantities of gallium, which measured changes in temperature based on the change in the device’s electrical resistance as energy was absorbed. [...]

Telecommunication (song) – Lyrics

UV Astronomy

The song details types of energy transmitted across time and space. The first line mentions “ultraviolet..radio light..to your solar system…” indicating someone or something is attempting to communicate across the galaxy. In astronomy, UV light is emitted by very hot objects. A motif in the bands lyrics is alien life forms (with A Flock of [...]

Chabot Space and Science Center – Planetarium

Space Science

Adapted from the Wikipedia article Chabot Space and Science Center, under the G. N. U. Free Documentation License. Please also see http://en.wikipedia.org/wiki









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