celestial coordinate system

Directions toward objects in the sky can be quantified by constructing, from these bases, celestial coordinate systems.

The zodiac is a spherical celestial coordinate system.

There are a number of different celestial coordinate systems based on different fundamental planes and with different terms for the various coordinates.

Celestial coordinate systems have varying fundamental planes:

Deep space satellites use other Celestial coordinate system, like the Ecliptic coordinate system.

Celestial coordinate systems most commonly used in astronomy are equatorial coordinates and ecliptic coordinates.

The horizontal coordinate system is a celestial coordinate system that uses the observer's local horizon as the fundamental plane.

The word is also used for the same event happening on other planets and in setting up a celestial coordinate system; 'see equinox (celestial coordinates)'.

In astronomy, a celestial coordinate system is a system for specifying positions of celestial objects: satellites, planets, stars, galaxies, and so on.

The equatorial coordinate system is a widely-used celestial coordinate system used to specify the positions of celestial objects.

The ecliptic coordinate system is a celestial coordinate system commonly used for representing the positions and orbits of Solar System objects.

Most sources of time and celestial coordinate system standards use UT1 as the default meaning of UT, though occasionally UTC may be implied.

Galactic coordinate system is a celestial coordinate system which is centered on the Sun and is aligned with the apparent center of the Milky Way galaxy.

The vernal point (vernal equinox) - the one the Sun passes in March on its way from south to north - is used as the origin of some celestial coordinate systems:

The second paper to mention is about the rigidity of the celestial coordinate system obtained by the one-dimensional observations in a scanning satellite as TYCHO/Option A/Hipparcos.

In astronomy, equinox is a moment in time at which the vernal point, celestial equator, and other such elements are taken to be used in the definition of a celestial coordinate system.

Images contain an implicit Cartesian coordinate system that describes the location of each pixel in the image, but scientific uses usually require working in 'world' coordinates, for example the celestial coordinate system.

The term "vernal point" is used for the time of this occurrence and for the direction in space where the Sun is seen at that time, which is the origin of some celestial coordinate systems:

Philip Sadler designed this patented system which projected stars, constellation figures from many mythologies, celestial coordinate systems, and much else, from removable cylinders (Viewlex and others followed with their own portable versions).

The planetarium was used to teach students from University College London's astronomy department the complexity of the Celestial coordinate system, allowing for practical lectures delivered by a team of planetarium and UCL staff.

Proper motions precise to about 2.5 milliarcseconds per year are given as derived from a comparison with the Astrographic Catalogue (AC 2000) and 143 other ground-based astrometric catalogues, all reduced to the Hipparcos celestial coordinate system.

It therefore improves understanding of the surroundings of the solar system in terms of observer-neutral celestial coordinate systems - systems that are neither geocentric nor heliocentric - such as the galactic coordinate system and supergalactic coordinate system.

Essentially, the zodiac is a celestial coordinate system, or more specifically an ecliptic coordinate system, which takes the ecliptic as the origin of latitude, and the position of the sun at vernal equinox as the origin of longitude.

The galactic coordinate system is a celestial coordinate system in spherical coordinates, with the Sun as its center, the primary direction aligned with the approximate center of the Milky Way galaxy, and the fundamental plane approximately in the galactic plane.

Babylonian astronomers at some stage during the early 1st millennium BC divided the ecliptic into twelve equal zones of celestial longitude to create the first known celestial coordinate system: a coordinate system that boasts some advantages over modern systems (such as equatorial coordinate system).