Observatoire de Strasbourg -- History. : The multinational history of Strasbourg Astronomical Observatory / edited by Andre Heck.
2005
1
Observatoire des institutions européennes. : National Veterinary Services Laboratories and Center for Veterinary Biologics : working with the World Organization for Animal Health (OIE).
2009
1
Observatories -- Chile. : Vera C. Rubin Observatory Designation Act
2019
1
Observatories -- England -- London -- History. : Kew Observatory & the evolution of Victorian science, 1840-1910 / Lee T. Macdonald.
2018
1
Observatorio Manuel Foster. : Astronomy at the turn of the twentieth century in Chile and the United States : chasing southern stars, 1903-1929 / Barbara K. Silva.
2019
1
Observers (Control theory)
9
Observers (Control theory) -- Congresses. : Control and observer design for nonlinear finite and infinite dimensional systems / Thomas Meurer, Knut Graichen, Ernst Dieter Gilles (eds.).
2005
1
Amateur astronomy -- Observers' manuals. : Stargazing basics : getting started in recreational astronomy / Paul E. Kinzer.
2008
1
Artificial satellites -- Observers' manuals. : Artificial satellites and how to observe them / Richard Schmude, Jr.
2012
1
Asterisms (Astronomy) -- Observers' manuals. : Pattern asterisms : a new way to chart the stars / John A. Chiravalle.
2006
1
Asteroids -- Observers' manuals. : Asteroids and dwarf planets and how to observe them / Roger Dymock.
2010
1
Astronomy -- Observers' manuals.
58
Astronomy -- Australasia -- Observers' manuals. : 2014 Australasian sky guide / Nick Lomb.
2013
1
Astronomy -- Australia -- Observers' manuals. : 2017 Australasian sky guide / Dr Nick Lomb.
2016
1
Astronomy -- Australia -- New South Wales -- Sydney -- Observers' manuals. : 2017 Australasian sky guide / Dr Nick Lomb.
2016
1
Astronomy -- Australia -- Sydney (N.S.W.) -- Observers' manuals. : 2018 Australasian sky guide / Nick Lomb.
2017
1
Astronomy -- Observers' manuals -- Popular works. : Twenty-five astronomical observations that changed the world : and how to make them yourself / Michael Marett-Crosby.
2013
1
Astronomy -- Southern Hemisphere -- Observers' manuals.
2
Auroras -- Observers' manuals. : Aurora : observing and recording nature's spectacular light show / Neil Bone.
2007
1
Comets -- Observers' manuals.
2
Constellations -- Observers' manuals.
11
Double stars -- Observers' manuals.
3
Dwarf planets -- Observers' manuals. : Asteroids and dwarf planets and how to observe them / Roger Dymock.
2010
1
Fire weather -- Observers' manuals. : Fire-weather observers' handbook / William C. Fischer and Charles E. Hardy.
1976
1
Galaxies -- Observers' manuals.
2
Galaxies -- Clusters -- Observers' manuals. : Concise catalog of deep-sky objects : astrophysical information for 550 galaxies, clusters and nebulae / Warren H. Finlay.
2014
1
Halley's comet -- Observers' manuals.
2
Jupiter (Planet) -- Observers' manuals. : Jupiter and how to observe it / John W. McAnally.
2008
1
Mars (Planet) -- Observers' manuals. : Mars and how to observe it / Peter Grego.
2012
1
Meteorological optics -- Observers' manuals.
2
Meteorology -- Observers' manuals.
3
Meteorology -- United States -- Observers' manuals.
2
Meteors -- Observers' manuals. : Meteors and how to observe them / Robert Lunsford.
2009
1
Milky Way -- Observers' manuals.
2
Moon -- Observers' manuals.
7
Multiple stars -- Observers' manuals. : Double and multiple stars and how to observe them / James Mullaney.
2005
1
Nebulae -- Observers' manuals.
3
Neptune (Planet) -- Observers' manuals. : Uranus, Neptune, and Pluto and how to observe them / Richard W. Schmude, Jr.
2008
1
Oceanography -- Observers' manuals. : Instruction manual for obtaining oceanographic data.
1968-
1
Outer space -- Observers' manuals. : A guide to Hubble Space Telescope objects : their selection, location, and significance / James L. Chen ; graphics by Adam Chen.
2015
1
Planetary nebulae -- Observers' manuals. : Planetary nebulae and how to observe them / Martin Griffiths.
2012
1
Planets -- Observers' manuals. : The observer's guide to planetary motion : explaining the cycles of the night sky / Dominic Ford.
2014
1
Pluto (Dwarf planet) -- Observers' manuals. : Uranus, Neptune, and Pluto and how to observe them / Richard W. Schmude, Jr.
2008
1
Saturn (Planet) -- Observers' manuals. : Saturn and how to observe it / Julius Benton.
2005
1
Sea ice -- Observers' manuals. : Observers guide to sea ice.
2007
1
Solar eclipses -- Observers' manuals. : Total solar eclipses and how to observe them / Martin Mobberley.
2007
1
Solar system -- Observers' manuals.
3
Solar telescopes -- Observers' manuals. : Observing the sun with Coronado telescopes / Philip Pugh.
2007
1
Southern sky (Astronomy) -- Observers' manuals.
4
Stars -- Observers' manuals.
8
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