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- RELEASE DATE: October 10, 1995
- PHOTO NO.: STScI-PRC95-38
-
-
- HUBBLE SEES THIN DISK AROUND THE STAR BETA PICTORIS
-
- [Top] - This NASA Hubble Space Telescope image of a portion of a vast
- dust disk around the star Beta Pictoris shows that the disk is thinner
- than thought previously. Estimates based on the Hubble image place the
- disk's thickness as no more than one billion miles (600 million
- kilometers), or about 1/4 previous estimates from ground-based
- observations. The disk is tilted nearly edge-on to Earth. Because the
- dust has had enough time to settle into a flat plane, the disk may be
- older than some previous estimates. A thin disk also increases the
- probability that comet-sized or larger bodies have formed through
- accretion in the disk. Both conditions are believed to be
- characteristic of a hypothesized circumstellar disk around our own Sun,
- which was a necessary precursor to the planet-building phase of our
- Solar Systems, according to current theory.
-
- Credit: Al Schultz (CSC/STScI) and NASA
-
-
- [Bottom] - For comparison the disk appears four times thicker in a
- ground-based image of Beta Pictoris due to the limitation of
- atmospheric seeing. This red-light image (approximately 7,000
- Angstroms) image was obtained at the Mauna Kea Observatory, Hawaii, on
- the 2.2-meter telescope. (Kalas, P., & Jewitt, D. 1995, AJ, 110, 794)
-
- Credit: Paul Kalas (University of Hawaii 2.2-m telescope, Mauna Kea)
-
- HST imaging team: Al Schultz, Helen Hart (Computer Sciences
- Corporation), Kent Reinhard (Doane College, NE), Fred Bruhweiler, Mike
- DiSanti (Catholic University of America), Glenn Schneider (Steward
- Observatory, University of Arizona), and NASA.
-
- Image files in GIF and JPEG format may be accessed on Internet via
- anonymous ftp from ftp.stsci.edu in /pubinfo.
-
- The same images are available via World Wide Web from URL
- http://www.stsci.edu/pubinfo/Latest.html, or via links in
- http://www.stsci.edu/pubinfo/Pictures.html.
- GIF JPEG
- PRC95-38 Beta Pic Disk gif/BetaPicS.gif jpeg/BetaPicS.jpg
-