Search Results for: Optical telescopes
rider. at fourth magnitude, alcor would normally be relatively easy to see with the unaided eye, but its proximity to mizar renders it more difficult to resolve, and it has served as a traditional test of sight. mizar itself has four components and thus enjoys the distinction of being part of an optical
galaxies flank alkaid (η), the pinwheel (m ). to the north, and the whirlpool (m ), to the south. see also constellation galaxy star references dickinson, terence, and alan dyer. . the backyard astronomer's guide. richmond hill, ont: firefly books. isbn - . raymond, john c. . asterisms for small telescopes...
https://www.newworldencyclopedia.org/entry/Big_Dipper
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