guide star catalog
81Alpha Centauri — This article is about α Centauri . For a Centauri , see V761 Centauri. For A Centauri , see A Centauri. For other uses, see Alpha Centauri (disambiguation). Alpha Centauri A[1]/B[2] …
82Tycho-2 Catalogue — The Tycho 2 Catalogue is a catalogue of more than 2.5 million of the brightest stars.The astrometric reference catalogue contain positions, proper motions, and two color photometric data for the 2,539,913 of the brightest stars in the sky.… …
83Adaptive optics — (AO) is a technology used to improve the performance of optical systems by reducing the effects of rapidly changing optical distortion. It is used in astronomical telescopes and laser communication systems to remove the effects of atmospheric… …
84Delta Ophiuchi — Location of δ Ophiuchi (middle right) Observation data Epoch J2000      Equinox J2000 …
85Alpha Andromedae — α Andromedae Observation data …
86History of astronomy — History of science …
87Albireo — Starbox 2 name=SIMBAD link|HD+183912|Albireo A caption=Albireo s position, lower right corner. The cross like figure is the Northern Cross. The blue line shows the boundaries of the constellation the Swan. epoch=J2000.0 (ICRS) constell=Cygnus ra… …
88Harry Sahle — Infobox comics creator imagesize = caption = birthname = birthdate = location = deathdate = circa 1954 deathplace = nationality = American area = Penciler, Inker, Editor, Cartoonist alias = notable works = Timely Comics Black Widow Quality Comics …
89Index Catalogue of Visual Double Stars — The Index Catalogue of Visual Double Stars, or IDS, is a catalog of double stars. It was published by Lick Observatory in 1963 and contains measurements for 64,250 objects, covering the entire sky. [pp. 723 ndash;724, The Observer s Guide to… …
90Delta Serpentis — δ Serpentis Observation data Epoch J2000.0      Equinox J2000.0 Constellation Serpens Right ascension 15h 34m 48.1s Declination +10° 32 15 …
