Category:Start-Class Astronomy articles
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Astronomy articles rated as Start-class on the Wikipedia 1.0 Assessment Scale. Add items to this category by typing {{WPAstronomy|class=Start}} on the article's talk page.
Subcategories
This category has the following 7 subcategories, out of 7 total.
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- Start-Class Astronomy articles of Low-importance (12,846 P)
Pages in category "Start-Class Astronomy articles"
The following 200 pages are in this category, out of approximately 15,144 total. This list may not reflect recent changes.
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- Talk:O-type main-sequence star
- Talk:O'Connell effect
- Talk:O'Day (crater)
- Talk:Oak Ridge Observatory
- Talk:OAO 1657-415
- Talk:Erwin Obermair
- Talk:Oberth (crater)
- Talk:Tim O'Brien (physicist)
- Talk:Obruchev (crater)
- Talk:Observation arc
- Talk:Observations of small Solar System bodies
- Talk:Observatory chronometer
- Talk:Observatory Naef Épendes
- Talk:Observatory of Saint-Veran
- Talk:Observatory of Strasbourg
- Talk:OCA–DLR Asteroid Survey
- Talk:Occator (crater)
- Talk:Oceanus Procellarum
- Talk:Octaeteris
- Talk:Octans
- Talk:October 2014 lunar eclipse
- Talk:Odd radio circle
- Talk:Matt O'Dowd (astrophysicist)
- Talk:Odyssey Moon
- Talk:Oenopides
- Talk:Oenopides (crater)
- Talk:Oersted (crater)
- Talk:Sally Oey
- Talk:Office of Astronomy for Development
- Talk:Officina Typographica
- Talk:Warren B. Offutt
- Talk:Hakkı Ögelman
- Talk:OGLE-2003-BLG-235L
- Talk:OGLE-2006-BLG-109L
- Talk:OGLE-2007-BLG-349(AB)b
- Talk:OGLE-2012-BLG-0950Lb
- Talk:OGLE-2014-BLG-0124Lb
- Talk:OGLE-2016-BLG-1190Lb
- Talk:OGLE-2016-BLG-1195Lb
- Talk:OGLE-LMC-CEP0227
- Talk:OGLE-TR-10
- Talk:OGLE-TR-10b
- Talk:OGLE-TR-122
- Talk:Ogygis Undae
- Talk:Oh-My-God particle
- Talk:Ohio Sky Survey
- Talk:Ohio State University Radio Observatory
- Talk:Ohm (crater)
- Talk:Oileán Ruaidh (Mars rock)
- Talk:OJ 287
- Talk:Heikki Oja
- Talk:Takeshi Oka
- Talk:John A. O'Keefe (astronomer)
- Talk:Oken (crater)
- Talk:Olbers (crater)
- Talk:Heinrich Wilhelm Matthias Olbers
- Talk:Olcott (crater)
- Talk:William Tyler Olcott
- Talk:Old Naval Observatory
- Talk:Old University of Alabama Observatory
- Talk:Ole Rømer Observatory
- Talk:Hans Oleak
- Talk:Oliver Observing Station
- Talk:Olivier (crater)
- Talk:Charles Pollard Olivier
- Talk:Alexander Ollongren
- Talk:Denison Olmsted
- Talk:Donald Olson (astronomer)
- Talk:Olympica Fossae
- Talk:Omar Khayyam (crater)
- Talk:Omega Andromedae
- Talk:Omega Aurigae
- Talk:Omega Boötis
- Talk:Omega Canis Majoris
- Talk:Omega Capricorni
- Talk:Omega Carinae
- Talk:Omega Cassiopeiae
- Talk:Omega Cygni
- Talk:Omega Draconis
- Talk:Omega Eridani
- Talk:Omega Fornacis
- Talk:Omega Geminorum
- Talk:Omega Herculis
- Talk:Omega Hydrae
- Talk:Omega Leonis
- Talk:Omega Lupi
- Talk:Omega Nebula
- Talk:Omega Octantis
- Talk:Omega Ophiuchi
- Talk:Omega Orionis
- Talk:Omega Persei
- Talk:Omega Piscium
- Talk:Omega Sagittarii
- Talk:Omega Serpentis
- Talk:Omega Ursae Majoris
- Talk:Omega Virginis
- Talk:Omega1 Aquarii
- Talk:Omega1 Aquilae
- Talk:Omega1 Cancri
- Talk:Omega1 Cygni
- Talk:Omega1 Scorpii
- Talk:Omega1 Tauri
- Talk:Omega2 Aquarii
- Talk:Omega2 Aquilae
- Talk:Omega2 Cancri
- Talk:Omega2 Cygni
- Talk:Omega2 Scorpii
- Talk:Omega2 Tauri
- Talk:Omicron Andromedae
- Talk:Omicron Aquarii
- Talk:Omicron Aquilae
- Talk:Omicron Arietis
- Talk:Omicron Aurigae
- Talk:Omicron Boötis
- Talk:Omicron Capricorni
- Talk:Omicron Cassiopeiae
- Talk:Omicron Cephei
- Talk:Omicron Columbae
- Talk:Omicron Coronae Borealis
- Talk:Omicron Cygni
- Talk:Omicron Draconis
- Talk:Omicron Geminorum
- Talk:Omicron Gruis
- Talk:Omicron Herculis
- Talk:Omicron Hydrae
- Talk:Omicron Leonis
- Talk:Omicron Lupi
- Talk:Omicron Ophiuchi
- Talk:Omicron Pegasi
- Talk:Omicron Persei
- Talk:Omicron Piscium
- Talk:Omicron Puppis
- Talk:Omicron Sagittarii
- Talk:Omicron Scorpii
- Talk:Omicron Serpentis
- Talk:Omicron Tauri
- Talk:Omicron Velorum
- Talk:Omicron Virginis
- Talk:Omicron1 Cancri
- Talk:Omicron1 Canis Majoris
- Talk:Omicron1 Centauri
- Talk:Omicron1 Eridani
- Talk:Omicron1 Orionis
- Talk:Omicron2 Cancri
- Talk:Omicron2 Centauri
- Talk:Omicron2 Orionis
- Talk:Ondřejov Observatory
- Talk:One-Mile Telescope
- Talk:Rene Ong
- Talk:Onizuka (crater)
- Talk:Onizuka Center for International Astronomy
- Talk:Onsala Space Observatory
- Talk:Ontario Lacus
- Talk:Ooty Radio Telescope
- Talk:OP Andromedae
- Talk:Opelt (crater)
- Talk:Friedrich Wilhelm Opelt
- Talk:Open Astronomy
- Talk:Open cluster family
- Talk:Open cluster remnant
- Talk:OpenUniverse
- Talk:Operation Avalanche (film)
- Talk:Operation Moonwatch
- Talk:Oph 162225-240515
- Talk:Ophelia (moon)
- Talk:Merav Opher
- Talk:Ophir Chasma
- Talk:Ophiuchus Superbubble
- Talk:Meers Oppenheim
- Talk:Samuel Oppenheim
- Talk:Oppenheimer (crater)
- Talk:Oppolzer (crater)
- Talk:Opposition (astronomy)
- Talk:Opposition surge
- Talk:Optical depth (astrophysics)
- Talk:Optical Gravitational Lensing Experiment
- Talk:Optical Telescope Element
- Talk:Orange County Astronomers
- Talk:Orbit determination
- Talk:Orbit of Mars
- Talk:Orbit of Venus
- Talk:Orbital plane
- Talk:Orbital pole
- Talk:Orbital Reflector
- Talk:Orbital state vectors
- Talk:OrbitBeyond
- Talk:Orbiting Astronomical Observatory
- Talk:Orbiting Astronomical Observatory 2
- Talk:Orbiting Astronomical Observatory 3
- Talk:Orbiting Binary Black Hole Investigation Satellite
- Talk:Orchard Hill Observatory
- Talk:Ordinary chondrite
- Talk:Oregon lunar sample displays
- Talk:Oregon Star Party
- Talk:Oresme (crater)
- Talk:Origins Space Telescope
- Talk:Orion Arm
- Talk:Orion molecular cloud complex
- Talk:Orion OB1
- Talk:Orion variable