Logo
Unionpedia
Communication
Get it on Google Play
New! Download Unionpedia on your Android™ device!
Free
Faster access than browser!
 

Tycho-2 Catalogue

Index Tycho-2 Catalogue

The Tycho-2 Catalogue is an astronomical catalogue of more than 2.5 million of the brightest stars. [1]

18 relations: Astrometry, Astronomical catalog, Carte du Ciel, Celestial coordinate system, Double star, Epoch (astronomy), European Space Agency, Gaia (spacecraft), Hipparcos, Magnitude (astronomy), Minute and second of arc, Perl, Photometry (astronomy), Proper motion, Star, Star catalogue, United States Naval Observatory, Unix2dos.

Astrometry

Astrometry is the branch of astronomy that involves precise measurements of the positions and movements of stars and other celestial bodies.

New!!: Tycho-2 Catalogue and Astrometry · See more »

Astronomical catalog

An astronomical catalog or catalogue is a list or tabulation of astronomical objects, typically grouped together because they share a common type, morphology, origin, means of detection, or method of discovery.

New!!: Tycho-2 Catalogue and Astronomical catalog · See more »

Carte du Ciel

The Carte du Ciel (literally, 'Map of the Sky') and the Astrographic Catalogue (or Astrographic Chart) were two distinct but connected components of a massive international astronomical project, initiated in the late 19th century, to catalogue and map the positions of millions of stars as faint as 11th or 12th magnitude.

New!!: Tycho-2 Catalogue and Carte du Ciel · See more »

Celestial coordinate system

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

New!!: Tycho-2 Catalogue and Celestial coordinate system · See more »

Double star

In observational astronomy, a double star or visual double is a pair of stars that appear close to each other in the sky as seen from Earth when viewed through an optical telescope.

New!!: Tycho-2 Catalogue and Double star · See more »

Epoch (astronomy)

In astronomy, an epoch is a moment in time used as a reference point for some time-varying astronomical quantity, such as the celestial coordinates or elliptical orbital elements of a celestial body, because these are subject to perturbations and vary with time.

New!!: Tycho-2 Catalogue and Epoch (astronomy) · See more »

European Space Agency

The European Space Agency (ESA; Agence spatiale européenne, ASE; Europäische Weltraumorganisation) is an intergovernmental organisation of 22 member states dedicated to the exploration of space.

New!!: Tycho-2 Catalogue and European Space Agency · See more »

Gaia (spacecraft)

Gaia is a space observatory of the European Space Agency (ESA) designed for astrometry: measuring the positions and distances of stars with unprecedented precision.

New!!: Tycho-2 Catalogue and Gaia (spacecraft) · See more »

Hipparcos

Hipparcos was a scientific satellite of the European Space Agency (ESA), launched in 1989 and operated until 1993.

New!!: Tycho-2 Catalogue and Hipparcos · See more »

Magnitude (astronomy)

In astronomy, magnitude is a logarithmic measure of the brightness of an object in a defined passband, often in the visible or infrared spectrum, but sometimes across all wavelengths.

New!!: Tycho-2 Catalogue and Magnitude (astronomy) · See more »

Minute and second of arc

A minute of arc, arcminute (arcmin), arc minute, or minute arc is a unit of angular measurement equal to of one degree.

New!!: Tycho-2 Catalogue and Minute and second of arc · See more »

Perl

Perl is a family of two high-level, general-purpose, interpreted, dynamic programming languages, Perl 5 and Perl 6.

New!!: Tycho-2 Catalogue and Perl · See more »

Photometry (astronomy)

Photometry is a technique of astronomy concerned with measuring the flux, or intensity of an astronomical object's electromagnetic radiation.

New!!: Tycho-2 Catalogue and Photometry (astronomy) · See more »

Proper motion

Proper motion is the astronomical measure of the observed changes in the apparent places of stars or other celestial objects in the sky, as seen from the center of mass of the Solar System, compared to the abstract background of the more distant stars.

New!!: Tycho-2 Catalogue and Proper motion · See more »

Star

A star is type of astronomical object consisting of a luminous spheroid of plasma held together by its own gravity.

New!!: Tycho-2 Catalogue and Star · See more »

Star catalogue

A star catalogue (Commonwealth English) or star catalog (American English), is an astronomical catalogue that lists stars.

New!!: Tycho-2 Catalogue and Star catalogue · See more »

United States Naval Observatory

The United States Naval Observatory (USNO) is one of the oldest scientific agencies in the United States, with a primary mission to produce Positioning, Navigation and Timing (PNT) for the United States Navy and the United States Department of Defense.

New!!: Tycho-2 Catalogue and United States Naval Observatory · See more »

Unix2dos

unix2dos (sometimes named todos or u2d) is a tool to convert line breaks in a text file from Unix format (Line feed) to DOS format (carriage return + Line feed) and vice versa.

New!!: Tycho-2 Catalogue and Unix2dos · See more »

Redirects here:

Tycho-2, Tycho-2 catalog, Tycho-2 catalogue.

References

[1] https://en.wikipedia.org/wiki/Tycho-2_Catalogue

OutgoingIncoming
Hey! We are on Facebook now! »