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Topic: Astronomical catalog


In the News (Mon 28 May 12)

  
  SAISNCAT - Sternberg Astronomical Institute Catalog of Supernovae
For many supernovae, particularly the older ones, their positions were not given in the original table, so, in such cases, the HEASARC has set the values of the SN positional parameters ra and dec equal to those of the galaxy positional parameters ra_galaxy and dec_galaxy, respectively.
The Declination of the host galaxy fixed in the J2000.0 equinox in which it was given in the original catalog, and (usually) specified to 0.1 arcminutes (sometimes to lower precision).
The declination of the supernova in the specified equinox.
heasarc.gsfc.nasa.gov /W3Browse/star-catalog/saisncat.html   (1687 words)

  
 Catalog Summary
When a customer ordered a house through a catalog, he or she received all of the parts, usually cut to length and numbered for proper assembly, to build the selected home.
The catalog house companies did their utmost to insure that their houses were ready to assemble.
The catalogs not only advertised the range of models available but promoted the value of home ownership over paying rent, and provided the potential customer with testimonials and guarantees promoting the quality of houses offered by each manufacturer.
www.bookrags.com /Catalog   (1837 words)

  
 User's Manual - Catalog of Infrared Observations
The Catalog of Infrared Observations (CIO) is a machine-readable compilation of infrared (1 micron - 1 mm) astronomical observations published in the scientific literature.
The number of articles in each journal containing infrared astronomical data and the journal abbreviations used in the bibliography are indicated.
The Catalog data are a mixture of sky surveys, small-scale regions surveys, and numerous individual source observations.
ircatalog.gsfc.nasa.gov /cio_intro.html   (1005 words)

  
 LAMBDA - Infrared Astronomical Satellite
The Infrared Astronomical Satellite (IRAS) mission was a collaborative effort by the United States (NASA), the Netherlands (NIVR), and the United Kingdom (SERC).
Some 250,000 point sources were detected down to a limiting flux density, away from confused regions of the sky, of about 0.5 Jy at 12, 25, and 60 microns and about 1.5 Jy at 100 microns.
A catalog of small (< 8') extended sources gives the characteristics of some 20,000 objects down to flux density levels about a factor of three brighter than the point source detection limits.
lambda.gsfc.nasa.gov /product/iras   (351 words)

  
 Messier Club Introduction
Almost every amateur astronomer begins to be aware of the Messier Catalog as soon as he or she opens their first book.
There is nothing in the catalog that the owner of so humble an instrument as a three-inch reflector cannot reach under good observing conditions.
The catalog was published in several stages as additions were made to it, the first 45 entries being printed in 1771.
www.astroleague.org /al/obsclubs/messier/mess.html   (780 words)

  
 SAO TDC Astronomical catalog formats   (Site not responding. Last check: 2007-10-10)
Standard ASCII and binary formats have been developed at the Smithsonian Astrophysical Observatory Telescope Data Center for astronomical catalogs which are to be plotted (or used as centers) by skymap, or searched (or used as search centers) by scat.
Binary catalogs, which can be created from the aforementioned ASCII catalogs using starcat, are used to save space and make searches faster by presenting software with data in its internal representation.
ASCII catalogs may be transferred between various computer architectures.
tdc-www.harvard.edu /software/catalogs/catalogs.html   (193 words)

  
 SKICAT Press Release 1/94   (Site not responding. Last check: 2007-10-10)
George Djorgovski, are reporting today and tomorrow at the American Astronomical Society meeting in Arlington, VA, on the first results from their processing a new, digital sky survey containing the amount of information equivalent to that in 6 million books.
This will be an entirely new type of an astronomical catalog, living in a computer memory, being constantly upgraded as the new data come in.
Instead of pouring over 40,000 thousand hefty books, astronomers would be able to download the parts of the catalog they need via computer networks, and analyse them using the powerful software tools developed for this purpose as part of the suite of high-performance database management and analysis tools available in the SKICAT system.
www-aig.jpl.nasa.gov /public/mls/home/fayyad/SKICAT-PR1-94.html   (1147 words)

  
 AMASE: An Object-Oriented Metadatabase Catalog for Accessing Multi-Mission Astrophysics Data
The catalog is an on-line metadatabase consisting of scientific reference pointers to enable easy location of low-level space astrophysics data in the public archives.
The AMASE catalog is an on-line metadatabase consisting of scientific reference pointers to enable easy location of low-level space astrophysics data in the public archives.
We have populated the database with approximately 40,000 astronomical objects from selected regions of the sky, specifying position (galactic, ecliptical and equatorial), type, wavelength band, object name aliases etc. We populated several other classes (of equivalent cardinality) which encapsulate primary and derived observation data and published astronomical catalog information.
nssdc.gsfc.nasa.gov /sisic/abstracts/se_ccheung.html   (2200 words)

  
 Astronomical ComputingEdited by Stuart J   (Site not responding. Last check: 2007-10-10)
As comprehensive as the astronomical catalogs used by software are, no database is totally accurate or complete.
Errors in catalogs are becoming more prominent with the growing capabilities of astronomical software coupled with the escalating size of databases and instantaneous communication via the Internet.
One accurate catalog for extragalactic objects is the Principal Galaxy Catalogue (PGC), produced by Lyon Observatory in France.
www.bisque.com /thesky/tom/catalogs.htm   (1584 words)

  
 SEDS Messier Database
During the years from 1758 to 1782 Charles Messier, a French astronomer (1730 - 1817), compiled a list of approximately 100 diffuse objects that were difficult to distinguish from comets through the telescopes of the day.
The study of these objects by astronomers has led, and continues to lead, to important, incredible discoveries such as the life cycles of stars, the reality of galaxies as separate 'island universes,' and the possible age of the universe.
While Messier's catalog was the first major reliable collection of deep-sky showpieces, and without doubt the most famous and important, others have followed since, including similar collections suitable e.g.
www.seds.org /messier   (1097 words)

  
 astronomical catalogs
More than 2,000 astronomical catalogs and data tables are in use.
The older method of printing catalogs has been superceded by storing them on compact disks and as computer databases, which can be accessed over the Internet.
Different catalogs have been compiled for different types of objects, parts of the sky, regions of the electromagnetic spectrum, and so forth.
www.daviddarling.info /encyclopedia/A/astronomical_catalogues.html   (185 words)

  
 Jeff Bondono's Astronomy Page
Astronomical League is composed of over two hundred local amateur astronomical societies from all across the United States, forming one of the largest amateur astronomical organizations in the world.
IAU, the International Astronomical Union is responsible for the dissemination of information on transient astronomical events, via the IAU Circulars (IAUCs), a series of postcard-sized announcements issued at irregular intervals as necessary in both printed and electronic form.
Catalogs include data from all astronomical regimes, but the emphasis of the archive is data from high-energy astrophysics satellites.
mywebpages.comcast.net /bondono2/astro.html   (7027 words)

  
 STAR Astronomical Catalog Search Program   (Site not responding. Last check: 2007-10-10)
star extracts selected entries of a source catalog, in any of several formats, listing the results and/or saving them to a disk file in any of several formats.
Catalogs available for searching include the SAO Catalog, the PPM Catalog, and the IRAS Point Source Catalog.
The scat program in the WCSTools toolkit provides similar, but less extensive, search capabilities for a larger number of catalogs and is available as C source code.
tdc-www.harvard.edu /software/star.html   (151 words)

  
 Interesting astronomical datasets
USNO-B1.0 is the successor catalog to the USNO A2.0.
The USNO A1.0 catalog was the recordholder for the World's Largest Star Catalog, with nearly 500 million stars.
The Tycho-2 catalog does not involve any additional observations by the Hipparcos satellite; instead, the original data gathered between 1989 and 1993 is to be reprocessed using better techniques and faster hardware that were not available for the "original" Tycho catalog, also known as Tycho-1.
www.projectpluto.com /datasets.htm   (4074 words)

  
 Princeton University - Survey releases latest catalog of astronomical data
The Sloan Digital Sky Survey, a consortium of astronomers with leadership at Princeton, has released to the public one of the largest catalogs of astronomical data ever produced.
The new release is a cumulative catalog of data collected since the survey began in 1998.
The SDSS consortium, which includes more than 200 astronomers at 13 institutions, plans to map up to a quarter of the entire sky and to determine the position and brightness of several hundred million celestial objects.
www.princeton.edu /main/news/archive/S07/39/06S00/index.xml   (276 words)

  
 Favorite deep sky catalog? - Astronomy.com Forums
The ngc and index catalogs are great for reference but not so much for casual viewing.
Up until last year I would have voted for the Messier catalog, but since I finished the M catalog last spring I voted for the NGC.
I live in the northern hemisphere so i prefere the Messier catalog because there are alot of them up where i live.
www.astronomy.com /ASY/CS/forums/258614/PrintPost.aspx   (320 words)

  
 The Status of the Second Generation Digitized Sky Survey and Guide Star Catalog
While the original Guide Star Catalog (GSC-I) was developed with the goal of increasing the efficiency of telescope operations and observation planning for HST, this catalog and its companion, the Digitized Sky Survey CDROM set (DSS-I), have proven to be key revolutionary tools to modern astronomy.
This all-sky catalog will contain an estimated 2 billion objects and will be complete to a magnitude of at least J=18 and as faint as J=21 at high galactic latitudes.
Within each triangular region database we are creating several containers: one for each plate to store the measured and calibrated parameters for each source; a container for each astronomical catalog with reference sources; and an Index container which has derived multi-plate parameters and links references to the same source in the plate and catalog containers.
adass.org /adass/proceedings/adass99/P3-22   (1450 words)

  
 Astronomical Resources on the Internet
Astronomers, space physicists, high-energy physicists and their colleagues around the world have done more than just help in setting up the Internet and the associated networks.
An astronomical catalog is a listing or a grouping of astronomical objects by some property.
They are web sites that could point to a single catalog or a collection of catalogs, or they could keep data from a particular mission, from a specific instrument at an observatory, or from multiple missions, observatories and catalogs.
www.istl.org /02-spring/internet2.html   (6774 words)

  
 Catalog of Infrared Observations Home Page
The Catalog of Infrared Observations (CIO) Version 5.1 is a database of over 396,000 published infrared observations of more than 64,000 individual astronomical sources over the wavelength range from 1 to 1000 microns.
You can also access the database of bibliographic references for each Catalog data entry by searching the bibliography of journal articles from which the catalog data were obtained.
It can be difficult to locate a source in the Catalog by its name, because source names are not standardized and are often abbreviated in the database.
ircatalog.gsfc.nasa.gov /cio   (617 words)

  
 Stellar Catalogs
This catalog has the highest positional precision of any existing, publicly available source: the average position is about 90 milliarcseconds per coordinate at epoch of observation.
These catalogs may be used with the Mark IV version of "Star" to analyze Mark IV images of the sky.
I have several versions available: the whole catalog in precessed form; all carbon stars in the catalog brighter than 12th magnitude (or brighter than 14th magnitude in p, if v is unknown), and all carbon stars brighter than 8th magnitude.
www.tass-survey.org /tass/catalogs/catalogs.html   (12757 words)

  
 Herschel 400 Introduction
He or she wanted to further the quest for deep-sky objects, but outside of the vast New General Catalog, there was no organized program that would provide that next vital step upward.
Mullaney alerted amateurs to the William Herschel Catalog of deep-sky objects, and suggested this would be a good project to get into after completion of the Messier Lists.
The New General Catalog was a compilation of several deep-sky catalogs circa 1880; it contained almost 8,000 objects of which 2,477 of these objects were observed by William Herschel.
www.astroleague.org /al/obsclubs/herschel/hers400.html   (685 words)

  
 The Palomar Digital Sky Survey (DPOSS)   (Site not responding. Last check: 2007-10-10)
The system incorporates the latest in the AI technology, including machine learning, expert systems, machine-assisted discovery, etc., in order to automatically catalog and measure sources detected in the sky survey images, to classify them as stars or galaxies, and to assist an astronomer in performing scientific analyses of the resulting object catalogs.
The computer system can be trained by an astronomer to perform a very tedious and repetitive, yet non-trivial task of finding, measuring, and classifying the sky objects.
Instead, users would be able to download the parts of the catalog they need via computer networks, and analyze them using the powerful software tools developed for this purpose.
www.astro.caltech.edu /~george/dposs/dposs_pop.html   (685 words)

  
 Arp's Catalog Of Peculiar Galaxies   (Site not responding. Last check: 2007-10-10)
The catalog is a selection of unusual or peculiar galaxies, interacting pairs or larger groups.
Catalog 7170, Arp's later Southern Peculiar Galaxies and Associations, a listing of similar objects collected in the southern hemisphere.
Members of the Johnson Space Center Astronomical Society, the Fort Bend Astronomical Club, and the Houston Astronomical Society supported the effort through analysis and data entry.
users.aol.com /arpgalaxy   (781 words)

  
 Astronomical Observing with Telescopes   (Site not responding. Last check: 2007-10-10)
Star parties are observing events in which a group of amateur astronomers get together to observer the sky.
It is an excellent time to look through many different types of telescopes and ask the owners why they bought their telescope and what they liked and did not like about the their telescope.
For example, the Rose City Astronomers club in Portland, Oregon has different types of telescopes that can be checkout for a month at a time.
www.stargazing.net /david/telescopes/index.html   (593 words)

  
 APOD: 2005 March 19 - NGC 2266: Old Cluster in the New General Catalog
Each day a different image or photograph of our fascinating universe is featured, along with a brief explanation written by a professional astronomer.
Explanation: The New General Catalog of star clusters and nebulae really isn't so new.
Dreyer's work was successful and is still important today as this famous catalog continues to lend its "NGC" to bright clusters, galaxies, and nebulae.
antwrp.gsfc.nasa.gov /apod/ap050319.html   (187 words)

  
 The Interactive NGC Catalog Online
This is the interactive NGC (and IC, and Messier) catalog at SEDS, based on the famous NGC 2000.0 by R.W. Sinnott of Sky Publishing Corp., who also created the electronic version used by this online service (thanks to Sky Publishing for permitting us this kind of use).
A reprint of all 3 catalogs was published by the Royal Astronomical Society, London, 1962.
Newer revised versions of the NGC and IC catalogs are available from and steadily worked upon by the NGC/IC Project.
www.seds.org /~spider/ngc/ngc.html   (711 words)

  
 HubbleSite - NewsCenter - Bigger, Better Catalog Unveils Half a Billion Celestial Objects (06/04/2001) - Release Images
This project was undertaken by the Space Telescope Science Institute as an upgrade to an earlier sky survey and catalog (DSS-I and GSC-I), initially done to provide guide stars for pointing the Hubble Space Telescope.
Astronomers extracted the stars from the scanned plate of the Rosette and listed them in the catalogs.
The new GSC-II catalog provides the colors, positions, and luminosities of nearly half a billion stars — over 20 times as many as the original GSC-I. The GSC-II contains information on stars as dim as the 19th magnitude.
hubblesite.org /newscenter/archive/releases/2001/18/image/a   (343 words)

  
 AstroMB: Computer Aided Astronomy
Each image, catalog and astronomical object may have its own associated files and programs and web sites.
These are automatically selected upon using an image, or a catalog, or by pointing the mouse at an astronomical object and they can be viewed or run from your Internet browser.
Catalogs of pulsars and binary pulsars (Taylor + 1993)
astromb.free.fr /wb_db.htm   (949 words)

  
 Astronomical catalog - Wikipedia, the free encyclopedia
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.
Astronomical catalogs are usually the result of an astronomical survey of some kind.
Astrograph - a type of instrument used to produce astronomical catalogues.
en.wikipedia.org /wiki/Astronomical_catalog   (180 words)

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