Astronomical surveys generally involving imaging or mapping of regions of the sky using Telescopes. The surveys are usually restricted to one band of wavelengths of electromagnetic radiation (e.g. light or radio) or to measurements of the flux of one type of particle (e.g. cosmic rays). Surveys are generally performed as part of the production of an astronomical catalogue. 50 cm refracting telescope at Nice Observatory. ... The wavelength is the distance between repeating units of a wave pattern. ... Electromagnetic radiation is a propagating wave in space with electric and magnetic components. ... Cosmic rays can loosely be defined as energetic particles originating outside of the Earth. ... An astronomical catalog 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. ...
Further information
See astronomical catalogue for a more detailed description of astronomical surveys and the production of astronomical catalogues
Category:astronomical catalogues -- List of astronomical catalogues on wikipedia
We expect the survey to be completed within five years; restricted access to the databases is possible during the second half of the survey.
ROSAT X-Ray All-Sky Survey (RASS) was obtained during 1990/1991 using the ROSAT Position Sensitive Proportional Counter (PSPC) in combination with the ROSAT X-ray Telescope (XRT).
Using the VLA in B-configuration, we map the entire survey region at a resolution of 80'' and with an average rms noise of 0.1 Jy/beam.
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