Extragalactic-astronomy-is-the-branch-of-astronomy

[permalink] [id link]

+ −

Page "Extragalactic astronomy" ¶ 1

from Wikipedia

Promote Demote Fragment Fix

« More previous Okay Cancel More next »

Some Related Sentences

Extragalactic and astronomy

Category: Extragalactic astronomy

Extragalactic and is

While the LMC is often considered an irregular type galaxy ( the NASA Extragalactic Database lists the Hubble sequence type as Irr / SB ( s ) m ), the LMC contains a very prominent bar in its center, suggesting that it may have previously been a barred spiral galaxy.

; DEIMOS: The Deep Extragalactic Imaging Multi-Object Spectrograph is capable of gathering spectra from 130 galaxies or more in a single exposure.

Extragalactic radio source is common but can lead to confusion, since many other extragalactic objects are detected in radio surveys, notably starburst galaxies.

The NASA / IPAC Extragalactic Database ( NED ) is an on-line astronomical database for astronomers that collates and cross-correlates astronomical information on extragalactic objects ( galaxies, quasars, radio, x-ray and infrared sources, etc .).

Extragalactic and with

* Correlation of the Highest-Energy Cosmic Rays with Nearby Extragalactic Objects: Science 2007 ( subscription required ).

Extragalactic and objects

* NASA / IPAC Extragalactic Database, a database of information on galaxies, quasars, and other astronomical objects outside the Milky Way Galaxy

The system uses data from the SIMBAD, the NASA / IPAC Extragalactic Database, the International Astronomical Union Circulars and the Lunar and Planetary Institute to identify papers referring to a given object, and can also search by object position, listing papers which concern objects within a 10 arcminute radius of a given Right Ascension and Declination.

Also returned are links to the SIMBAD and / or NASA Extragalactic Database object name databases, via which a user can quickly find out basic observational data about the objects analyzed in a paper, and find further papers on those objects.

* NASA / IPAC Extragalactic Database ( NED )-a database of information on objects outside the Milky Way, also maintained by JPL.

Extragalactic and Milky

* Extragalactic astronomy-the study of the larger universe beyond the Milky Way

Extragalactic and Galaxy

There are six large public surveys being conducted by VISTA: UltraVISTA, VIKING: VISTA Kilo-Degree Infrared Galaxy Survey, VMC: VISTA Magellanic Survey, VVV: VISTA Variables in the Via Lactea, VHS: VISTA Hemisphere Survey, VIDEO: VISTA Deep Extragalactic Observations Survey.

Extragalactic and .

* E. J. Groth and P. J. E. Peebles, " Statistical Analysis Of Catalogs Of Extragalactic Objects.

The astronomical data services SIMBAD and NASA / IPAC Extragalactic Database ( NED ) list several other names for this system.

The BOOMERanG experiment ( Balloon Observations Of Millimetric Extragalactic Radiation ANd Geophysics ) measured the cosmic microwave background radiation of a part of the sky during three sub-orbital ( high altitude ) balloon flights.

astronomy and is

It is engendered by confounding the Aristotelian cosmology in The Almagest with the geocentric astronomy.

This is what necessitates the nonsystematic character of his astronomy.

It is often stated that Copernican astronomy is ' simpler ' than Ptolemaic.

The albedo is an important concept in climatology and astronomy, as well as in calculating reflectivity of surfaces in LEED sustainable rating systems for buildings, computer graphics and computer vision.

Amateur astronomy, also called backyard astronomy and stargazing, is a hobby whose participants enjoy watching the sky, and the plethora of objects found in it, mainly with portable telescopes and binoculars.

Even though scientific research is not their main goal, many amateur astronomers make a contribution to astronomy by monitoring variable stars, tracking asteroids and discovering transient objects, such as comets.

The typical amateur astronomer is one who does not depend on the field of astronomy as a primary source of income or support, and does not have a professional degree or advanced academic training in the subject.

Amateur astronomy is usually associated with viewing the night sky when most celestial objects and events are visible, but sometimes amateur astronomers also operate during the day for events such as sunspots and solar eclipses.

It is only within about the past century, however, that amateur astronomy has become an activity clearly distinguished from professional astronomy, and other related activities.

A range of astronomy software is available and used by amateur astronomers, including software that generates maps of the sky, software to assist with astrophotography, observation scheduling software, and software to perform various calculations pertaining to astronomical phenomena.

With the development of fast Internet in the last part of the 20th century along with advances in computer controlled telescope mounts and CCD cameras ' Remote Telescope ' astronomy is now a viable means for amateur astronomers not aligned with major telescope facilities to partake in research and deep sky imaging.

Scientific research is most often not the main goal for many amateur astronomers, unlike professional astronomy.

There is a large number of amateur astronomical societies around the world that serve as a meeting point for those interested in amateur astronomy, whether they be people who are actively interested in observing or " armchair astronomers " who may simply be interested in the topic.

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

Apart from the fundamental function of providing astronomers with a reference frame to report their observations in, astrometry is also fundamental for fields like celestial mechanics, stellar dynamics and galactic astronomy.

In astronomy, a given point on the celestial sphere ( that is, the apparent position of an astronomical object ) can be identified using any of several astronomical coordinate systems, where the references vary according to the particular system.

Although the term aeon may be used in reference to a period of a billion years ( especially in geology, cosmology or astronomy ), its more common usage is for any long, indefinite, period.

In astronomy, to derive absolute magnitude from the observed apparent magnitude of a celestial object its value is corrected from distance to its observer.

In stellar and galactic astronomy, the standard distance is 10 parsecs ( about 32. 616 light years, or 3 × 10 < sup > 14 </ sup > kilometres ).

A small minority believe that it is evidence for the existence of ancient Assyrian telescopes, which could explain the great accuracy of Assyrian astronomy.

It is used in those fields which require a unit for the expression of small angles, such as astronomy, ophthalmology, navigation and marksmanship.

To express even smaller angles, standard SI prefixes can be employed ; in particular, the milliarcsecond, abbreviated mas, is used in astronomy.

0.137 seconds.