Search results
Results From The WOW.Com Content Network
The Tycho Input Catalog was created by the Hipparcos/Tycho international consortia in preparation for the Hipparcos satellite mission. They produced a catalog containing the best available data for all stars to magnitude 11. Adding the bright star data from this catalog to the GSC produced a complete all-sky catalog down to the GSC limiting ...
HSC — Hubble Source Catalog [21] (lists of sources from the Hubble Space Telescope) Hst — C.S. Hastings (double stars) Hu — Humason (planetary nebulae) Hu — W.J. Hussey (double stars) Hurt — Robert Hurt (for example: globular star cluster Hurt 2, aka 2MASS-GC02 in Sagittarius) Huygens — Christiaan Huygens (double stars) HV ...
The Hubble Space Telescope (HST or Hubble) is a space telescope that was launched into low Earth orbit in 1990 and remains in operation. It was not the first space telescope , but it is one of the largest and most versatile, renowned as a vital research tool and as a public relations boon for astronomy .
The standard format used to refer to Abell clusters is: Abell X, where X = 1 to 4076.E.g. Abell 1656. Alternative formats include: ABCG 1656; AC 1656; ACO 1656; A 1656, and A1656. Abell himself preferred the latter, but in recent years ACO 1656 has become the preferred format among professional astronomers and is the one recommended by the Centre de Données astronomiques de Strasbourg
It contains the twenty million stars of the Hubble GSC, version 1.1, recalibrated using the U.S. Naval Observatory's ACT (Astrographic Catalog/Tycho). By 2009 it was considered obsolete, superseded by such catalogues as GSC-2.2, B1.0, A2.0, and especially UCAC-3. [1] GSC-ACT was a re-calibration of the Guide Star Catalog version 1.1 for Hubble. [2]
The Parkes Catalogue of Radio Sources, also known as the Parkes Southern Radio Source Catalog, consists of 8264 astronomical radio sources, mostly south of declination +27. . The catalogue was mostly compiled by John Bolton and his colleagues for 20 yea
The second Ariel catalog (designated 2A) contains 105 X-ray sources observed before April 1, 1977. [41] Prior to 2A some sources were observed that may not have been included. [42] The 842 sources in the HEAO A-1 X-ray source catalog were detected with the NRL Large Area Sky Survey Experiment on the HEAO 1 satellite. [43]
PSC – (catalog) Point Source Catalog, a catalog of point-like infrared sources detected with the Infrared Astronomy Satellite; PSF – (instrumentation) Point Spread Function, a function that describes the blurring of a point source that is caused by the optics of the telescope and instrument (as well as other effects)