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XStarView has been replaced by StarView 6

StarView version 6 (previously referred to as StarView II) is an astronomical database browser and research analysis tool. Developed in Java, StarView version 6 provides an easy to use, highly capable user interface that runs on any Java enabled platform as a standalone application.

It can be downloaded at

XStarView will be disabled November 1, 2000.

Old XStarView Documentation:

To be disabled soon

HST Observers:
Duplication checking can now be done on the Web!

Download the StarView software...

Common StarView Installation and operation problems

What is StarView?

StarView is the user interface to the HST Data Archives. It allows you to easily browse through the HST Archive database and retrieve public HST data.

StarView is X-Windows based.

Running XStarView

Due to a change in circumstances, the Archive guest account on has been discontinued.

You can install Xstarview at your home site.

Some of the features of StarView:

  • Multiple search screens:
    • General search screens
    • Instrument-specific screens
    • Calibration screens for each instrument
    • A proposal abstract search screen
    • A planned-exposures screen
    • Create your own custom query
  • Coordinate lookup via SIMBAD or NED
  • A preview facility for public-domain images and spectra (XStarView only)
  • User customizeable
  • Extensive on-line help

XStarView Screen Samples

Previewing in StarView

XStarView provides a preview facility for public domain images and spectra. These preview images are stored in our database and are available to immediate viewing through XStarView. They are not intended for science, but are useful for determining whether you want to retrieve the corresponding data from the archive.

The preview images and spectra are generated by the CADC.

  • Images are binned 4x4 and compressed by a factor of about 150, using a wavelet compression technique deveolped at STScI. They are previewed using SAOimage.
  • Spectra are compressed using gzip and are previewed using ACE/gr.
(These samples do not include the SAOimage or ACE/gr window surrounding the data display.)