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Some Useful Resources
- The Arecibo RFI Environment:
The Arecibo monitoring system continues its round-the-clock
operation for a hill-top near the optical lab. This page
shows the present environment for RFI at Arecibo.
the web page is:
- The Northern VLA Sky Survey (NVSS):
This is a radio continuum survey covering the sky north of -40 deg declination.
The survey has a great postage stamp server located at
- The NASA/IPAC Extragalactic Data Base (NED):
This is built around a master list of extragalactic objects for which
cross-identifications of names have been established, accurate
positions and redshifts entered to the extent possible, and some basic data collected.
Bibliographic references relevant to individual objects have been compiled, and abstracts
of extragalactic interest are kept on line. Detailed and
referenced photometry, position, and redshift data, have been taken from large compilations
and from the literature. NED's data and references are
being continually updated, with revised versions being put on-line every 2-3 months.
This is located at
The SIMBAD astronomical database, created and maintained by the
CDS, Strasbourg, brings together basic data, cross-identifications,
observational measurements, and bibliography, for celestial objects
outside the solar system: stars, galaxies, and nonstellar objects within our galaxy,
or in external galaxies.
SIMBAD is located at
- The STScI Digital Sky Survey (DPOSS):
The Digitized Sky Survey comprises a set of all-sky photographic surveys in
E, V, J, R, and N bands conducted wi
th the Palomar and UK Schmidt telescopes. The images are available at
SkyView is a Virtual Observatory on the Net generating images of any part of
the sky at wavelengths in all regimes from Radio to Gamma-Ray.
SkyView is at