Astronomy and Astrophysics – Astronomy
Scientific paper
Jun 1979
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1979pasp...91..280s&link_type=abstract
Astronomical Society of the Pacific, Publications, vol. 91, June-July 1979, p. 280-288. Research supported by the Consiglio Naz
Astronomy and Astrophysics
Astronomy
33
Galactic Structure, Nebulae, Astronomical Coordinates, Astronomical Maps, H Ii Regions, Supernova Remnants, Tables (Data)
Scientific paper
Two hundred and fifty-two H II regions have been identified in NGC 4449 and positions in rectangular coordinates are given. The size-frequency relation is compared with that of M33, NGC 2403, NGC 628, NGC 3631, and NGC 6822. Very sharp and faint filaments radially arranged with respect to the main body of the galaxy have been identified. The characteristics of the discrete radio source recently detected by Seaquist and Bignell (1978) are discussed.
Bianchini Antonio
Sabbadin Franco
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