NRAO: National Radio Astronomy Observatory

About this Image

Precessing-beam quasi-stellar object. The bright central component coincides with a Quasi-Stellar Object (QSO or quasar) at a redshift of z = 0.128. The QSO is precessing so the radio-emitting material which it ejects traces out an S-shape on the sky. The inset in the upper left of the image shows the resolution of the VLA observations.

Investigator(s):  J.J. Condon, H.S. Murdoch

Alternate Resolutions

Help

This image is available in the following downloadable versions:

• 480 x 487 color JPEG
• 975 x 989 color JPEG
• 1950 x 1978 color TIFF

If you would like to obtain a higher resolution version of this image, please contact Pat Smiley.

For More Information

• Up one level for more info on Quasars
• For unfamiliar terms, visit the NRAO Radio Astronomy Glossary

Technical Data

Telescope	VLA
Date of Observation	1982-06-25
Type of Observation	Continuum Observations
Band	L
Wavelength	20 cm
Frequency	1.4 GHz
Center of Image	RA: 23:03:3.00, Dec: -18:41:26.00
Field of View	0.0417 x 0.0417 degrees
Technical Caption	Observing run - 1982 June 25 at the VLA, in hybrid configuration using about 27 antennas and combined A and C data.



Astronomical database entries for PKS B2300-189
• Query NED for images of PKS B2300-189
• Query SIMBAD for more PKS B2300-189 data

---

SEARCH THE IMAGE GALLERY To search the Image Gallery for other images of PKS B2300-189, click the Submit button. Object Name Show Results As: Thumbnails List To search the Image Gallery for similar images, click the Submit button. Category Sub-Category Telescope Mode Show Results As: Any Galaxy AGN Galactic_Sources Solar_System Miscellaneous Telescopes Historical Any Quasars Radio Galaxies Seyferts Other AGN Any GBT VLA VLBA ALMA 12 m 140 ft Any Continuum Spectral Line Thumbnails List For more search options, please use our Advanced Search form.