Planetary Nebula NGC 7354

In 1977, the newly functioning VLA was used to map the radio emission from shells of hot gas, known as planetary nebulae, ejected from dying stars. NGC7354 (located in the constellation Cepheus) is a planetary nebulae formed when a star expelled part of its atmosphere and then maintained it as an expanding cloud of hot, ionized gas. The intensity of the radiation is denoted by color, which ranges from red (brightest) to blue (faintest). The effective angular size of the array's beam is shown in the inset. This early VLA map (one of the first made of an extended souce by the VLA) was used to show that the VLA was, in fact, successful at mapping. Success was determined by comparing the radio image to a good optical photograph.

VLA in hybrid configuration using 6 antennas. Resolution 1.6 x 2.2 arcsec. Synthesized beam.

Legacy Astronomical Images

NRAO/AUI/NSF does not hold full copyright for this image. Contact the archivist for details.

Legacy Astronomical Image

NGC7354

R. M. Hjellming, R. C. Bignell, B. Balick

Very Large Array (VLA)

1977-07-00

continuum

C

6 cm

5.0 GHz

RA 22:40:20.020, Dec: 61:17:8.100 (J2000)

0.008333 x 0.008333 degrees

Contact the archivist for a high resolution tif of this image.

Galactic Sources Series

Planetary Nebulae Unit