Astronomers

Stephen J. Edberg
... known for creating collaborative efforts between amateur and professional astronomers ... A professional astronomer since 1970, Steve still considers himself to be an active amateur astronomer as well ... was a collaborative program between observatories and amateur astronomers from over 40 countries that allowed nearly continuous observations and data ...

Low-ionization Nuclear Emission-line Region - Scientific Debates: Energy Sources and Ionization Mechanisms
... First, astronomers have debated the source of energy that excites the ionized gas in the centers of these galaxies ... Some astronomers have proposed that active galactic nuclei (AGN) with supermassive black holes are responsible for the LINER spectral emission ... Other astronomers have asserted that the emission is powered by star formation regions ...

Babylonian Astronomers - Neo-Babylonian Astronomy - Empirical Astronomy
... theory, it appears most of the Chaldean astronomers were concerned mainly with ephemerides and not with theory ... philosophy like that of the later Hellenistic models, though the Babylonian astronomers were concerned with the philosophy dealing with the ideal nature of the early universe ... Whereas Greek astronomers expressed "prejudice in favor of circles or spheres rotating with uniform motion", such a preference did not exist for Babylonian astronomers, for whom uniform circular ...

Stargazing - Scientific Research
... Scientific research is most often not the main goal for many amateur astronomers, unlike professional astronomy ... however, and many amateurs successfully contribute to the knowledge base of professional astronomers ... The majority of scientific contributions by amateur astronomers are in the area of data collection ...