A search for galaxies behind the Milky Way between L = 230 and 250 deg

Astronomy and Astrophysics – Astronomy

Scientific paper

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Astronomical Catalogs, Galactic Clusters, H I Regions, Infrared Astronomy, Milky Way Galaxy, Galactic Structure, Hubble Constant, Infrared Astronomy Satellite, Interstellar Extinction

Scientific paper

A systematic search for galaxies behind Milky Way is carried out by means of film copies at an effective wavelength of 790 nm. Visual inspection was made of 14 films; a total of 4633 galaxies were detected with diameters greater than 0.1 arcmin. The detected galaxies were cataloged with regard to position, size, galaxy type, and cross identification. More galaxies were detected at regions with less H I column densities in the Milky Way; the characteristics of the Galactic extinction are similar to those found in the first investigation between l of 210 and 230 deg. A superposition of some clusters of galaxies is seen around l of 240 deg, and b of 4 deg over about 15 deg in angular size; the clusters are distributed from 50 to 350 Mpc. A nearby cluster of galaxies is also at a distance of about 35 MPC around l of 243 deg and b of -6 deg, with an elongated structure nearly vertically against the Galactic plane linking the Antlia cluster to the Lepus cloud.

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