4MASS Postage Stamp Server

This postage Stamp server for 4 Meter All Sky Survey (4MASS) returns radio images of the sky in FITS or JPEG format, or as a contour plot. For detailed general instructions or information about this survey, see the Help File under "general"; or use the links on the forms for help about each item.

Note: these images will have a relatively high dynamic range which will cause them to appear as white dots on a black background unless the viewer used has suitable control over brightness, contrast and the range of values to be displayed. The "noise" level in these images is about 0.5 mJy/beam.

the FITSview family of FITS image viewers is available for a variety of computer systems. For a short discussion of installing external viewers for FITS files click here.

Publication info.

Other Sources of FITS Images from Sky Surveys

• SkyView (NASA)
• The STScI Digitized Sky Survey
• ESO Online Digitized Sky Survey
• CNR Skyeye Digitized Sky Survey server
• IRAS Infared Sky Survey
• University of Minnesota APS prototype postage stamp server
• NVSS (20 cm VLA D array) Survey
• FIRST (20 cm VLA B array) Survey
• WENSS (92 cm) Westerbork Survey (above dec=+30)
• SUMSS (843 MHz) Sydney University Molonglo Sky Survey (below dec=-30)

The (USA) National Radio Astronomy Observatory (NRAO) is operated by Associated Universities, Inc. and is a Facility of the (USA) National Science Foundation.

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Modified on Tuesday, 15-Jan-2002 10:53:22 EST
Original by Bill Cotton; markup revisions by Pat Murphy.