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Science, engineering, and mathematics — biology, chemistry, physics, astronomy, earth sciences, social sciences, and technology research. A curated gateway to academic and professional scientific resources.
57129 resources
Sketches, scratchings, pictures, and links, and construction of piggyback camera adaptor.
Includes deep sky objects and solar system CCD galleries, techniques and resources, and equipment.
Article on various types of deep sky objects.
Contains information, challenges, galaxy clusters, globular clusters, open star clusters, naked eye observations, observing planetary nebulae, the Milky Way, and star hopping.
Includes 100 peculiar galaxies, off the beaten path, observing galaxy clusters, the Abell planetaries, and the ultimate observing list with images.
Provides images from the catalog of 338 peculiar galaxy views gathered by Dr. Halton C. Arp in his Atlas of Peculiar Galaxies.
Math Heijen provides a collection of visual observing reports on stars, double stars and open clusters.
Astronomical sketches of deep sky objects observed by Ferenc Lovro.
International society of amateur and professional astronomers specializing in the observation of deep sky objects. Includes a forum where members can communicate and publish the results of their observations.