NRAO: National Radio Astronomy Observatory

About this Image

The nucleus of the Milky Way Galaxy observed with the VLA at 1.3 cm at an angular resolution of 0.1 arcsec. Sgr A* (a compact radio source), located in the middle of this image, is believed to be associated with the supermassive black hole at the Galactic center. The extended emission surrounding Sgr A* is the hot ionized gas within the central 16 arcsec region or 2 light years in linear scale. The psuedo-color scale indicates the radiation intensity.

Investigator(s):  Jun-Hui Zhao, W. M. Goss

Alternate Resolutions

Help

This image is available in the following downloadable versions:

• 541 x 659 color JPEG

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

For More Information

• Read the Journal article
• Up one level for more info on Galactic_Center
• For unfamiliar terms, visit the NRAO Radio Astronomy Glossary

Technical Data

Telescope	VLA
Date of Observation	1992-01-19
Type of Observation	Continuum Observations
Band	K
Wavelength	1.2 cm
Frequency	22 GHz
Center of Image	RA: 17:45:40.05, Dec: -29:00:28.00 (J2000)
Field of View	0.0044 x 0.0044 degrees
Technical Caption	This image was made from A and B array data at 1.3 cm.



Astronomical database entries for Sgr A
• Query SIMBAD for more Sgr A data

---

SEARCH THE IMAGE GALLERY To search the Image Gallery for other images of Sgr A, 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 Black Holes Galactic Center Galactic Halo Planetary Nebula Pulsars/Neutron Stars Supernova Supernova Remnants Stars Star Forming Regions 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.