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 (12,750 P)
Pages in category "Start-Class Astronomy articles"
The following 200 pages are in this category, out of approximately 15,060 total. This list may not reflect recent changes.
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- 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 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
- Talk:Orion's Sword
- Talk:Orionids
- Talk:Orlov (crater)
- Talk:Aleksandr Orlov (astronomer)
- Talk:Sergei Vladimirovich Orlov
- Talk:Orontius (crater)
- Talk:Orsola De Marco
- Talk:Michel Ory
- Talk:OS Andromedae
- Talk:Osculating orbit
- Talk:Yoshiaki Oshima
- Talk:Osiris (lunar crater)
- Talk:Donald Edward Osterbrock
- Talk:Eve Ostriker
- Talk:Jeremiah P. Ostriker
- Talk:Ostwald (crater)
- Talk:Liisi Oterma
- Talk:Satoru Otomo
- Talk:OTS 44
- Talk:Ott Planetarium
- Talk:Otter Creek Observatory
- Talk:Otto Struve Telescope
- Talk:Ou 5
- Talk:OU Andromedae
- Talk:OU Geminorum
- Talk:OU Puppis
- Talk:Oudemans (crater)
- Talk:Jean Abraham Chrétien Oudemans
- Talk:Oukaïmeden Observatory
- Talk:Out of the Ordinary Festival
- Talk:Outer Solar System Origins Survey
- Talk:Outflow channels
- Talk:Michiel Daniel Overbeek
- Talk:Overwhelmingly Large Telescope
- Talk:OVRO 40 meter Telescope
- Talk:James E. Owen
- Talk:Owens Valley Radio Observatory
- Talk:Owens Valley Solar Array
- Talk:Owl Nebula
- Talk:The Oxford Companion to Cosmology
- Talk:Oxygen-burning process
- Talk:OY Arae
- Talk:OY Carinae
- Talk:Ozone monitoring instrument
P
- Talk:P Eridani
- Talk:P-process
- Talk:P-type asteroid
- Talk:P. Sreekumar (astrophysicist)
- Talk:P/2011 P1 (McNaught)
- Talk:P/2016 G1 (PanSTARRS)
- Talk:P/2019 LD2 (ATLAS)
- Talk:P/2020 MK4 (PanSTARRS)
- Talk:P/2021 U3 (Attard-Maury)
- Talk:PA-99-N2
- Talk:Paaliaq
- Talk:Pachmarhi Telescope Array
- Talk:Packing for Mars
- Talk:Bohdan Paczyński
- Talk:Paolo Padovani
- Talk:Padua family
- Talk:Padvarninkai meteorite
- Talk:Pajamäki Solar System Scale Model
- Talk:Palermo Technical Impact Hazard Scale
- Talk:PALFA Survey
- Talk:Palisa (crater)
- Talk:Palitzsch (crater)
- Talk:Johann Georg Palitzsch
- Talk:Pallas (crater)
- Talk:Pallas family
- Talk:Pallene (moon)
- Talk:Margaretta Palmer
- Talk:Palmetto (crater)
- Talk:Palmieri (crater)
- Talk:Palomar 2
- Talk:Palomar 12
- Talk:Palomar 14
- Talk:Palomar globular clusters
- Talk:Palomar Planet-Crossing Asteroid Survey
- Talk:Palomar Testbed Interferometer
- Talk:Palomar Transient Factory
- Talk:Palomar–Leiden survey
- Talk:Palus Epidemiarum
- Talk:Palus Putredinis
- Talk:PAMELA detector
- Talk:Pancha-siddhantika
- Talk:Pandia (moon)
- Talk:Pandora (moon)
- Talk:Teresa Paneque
- Talk:Pannekoek (crater)
- Talk:Paola Pinilla
- Talk:Papaleksi (crater)
- Talk:Paracelsus (crater)
- Talk:Jan van Paradijs
- Talk:Parallactic angle
- Talk:Paranal Observatory
- Talk:Paraskevopoulos (crater)
- Talk:John S. Paraskevopoulos
- Talk:Parenago (crater)
- Talk:Pavel Parenago
- Talk:Donald C. Parker
- Talk:Eugene Parker
- Talk:Parkhurst (crater)
- Talk:John Adelbert Parkhurst
- Talk:Parking orbit
- Talk:Clare Parnell
- Talk:Parrot (crater)
- Talk:Parry (crater)
- Talk:Parsons (crater)
- Talk:Partial impact theory
- Talk:Particle chauvinism
- Talk:Particle Physics and Astronomy Research Council
- Talk:Particle physics in cosmology
- Talk:Pascal (crater)
- Talk:Paschen (crater)
- Talk:Ilaria Pascucci
- Talk:Pasiphae (moon)
- Talk:Pasiphae group
- Talk:Pasteur (lunar crater)
- Talk:Miriani Griselda Pastoriza
- Talk:Patsaev
- Talk:Florence Shirley Patterson Jones
- Talk:Paul Wild Observatory
- Talk:Aloke Paul
- Talk:K. C. Paul
- Talk:Pauli (crater)
- Talk:Vasiliki Pavlidou
- Talk:Pavlov (crater)
- Talk:Pavonis Mons
- Talk:Pawsey (crater)
- Talk:PDS 70
- Talk:PDS 110
- Talk:Peace Vallis
- Talk:Peach Mountain Observatory
- Talk:John A. Peacock
- Talk:Peak of eternal light
- Talk:Stanton J. Peale
- Talk:William Pearson (astronomer)
- Talk:Peary (crater)
- Talk:Pease (crater)
- Talk:Francis G. Pease
- Talk:William Peck (astronomer)
- Talk:Jean-Claude Pecker
- Talk:Peculiar galaxy
- Talk:Peculiar velocity
- Talk:Olaf Pedersen
- Talk:Pedestal crater
- Talk:Peek (crater)
- Talk:Pegasus Dwarf Irregular Galaxy
- Talk:Pegasus Dwarf Spheroidal Galaxy
- Talk:Peggy (moonlet)
- Talk:Peirce (crater)
- Talk:Benjamin Peirce
- Talk:Peirescius (crater)
- Talk:Pele (volcano)