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The STScI Digitized Sky Survey
Phase 2 User's Guide
Use this version of the Digitized Sky Survey form to extract an image
for the appropriate survey for determining positions for Phase 2 of HST
proposal submission. Extractions will be from the Quick V survey for
northern declinations, and from the 1st generation scans for southern
declinations. This will ensure that your submitted positions are in the
HST Guide Stars frame.
Images will be in FITS format. Your browser should attempt to save
the file to disk instead of trying to display it.
Enter the coordinates (equatorial right ascension and declination) on which
you would like the scan to be centered, and select either J2000 or B1950 for
the equinox of the coordinates.
The coordinates can be in either decimal degrees or HMS/DMS format.
(That's decimal degrees for the RA, not decimal hours.)
If you use HMS/DMS format, the hours/degrees, minutes, and seconds should be separated
by a space, and seconds must be included.
12 22 31.98 29 53 45.55
If the dec is positive, then the plus sign is optional.
Specify a field size for the for the returned image
by entering a height and width in arcminutes.
The default size is 5' x 5', which yields a FITS file of about 530 kbytes,
or a GIF image of usually around 160 kbytes.
(The maximum size, 60 arcminutes, produces an 8-megabyte FITS file.)