Editing Planetary system (section)

====Circumstellar disks and dust structures====
{{main|Circumstellar disk}}
[[File:NASA-14114-HubbleSpaceTelescope-DebrisDisks-20140424.jpg|thumb|250px|right|[[Debris disks]] detected in [[Hubble Space Telescope|HST]] archival images of young stars, ''HD 141943'' and ''HD 191089'', using improved imaging processes (April 24, 2014).]]
After planets, circumstellar disks are one of the most commonly-observed properties of planetary systems, particularly of young stars. The Solar System possesses at least four major circumstellar disks (the [[asteroid belt]], [[Kuiper belt]], [[scattered disc]], and [[Oort cloud]]) and clearly-observable disks have been detected around nearby solar analogs including [[Epsilon Eridani]] and [[Tau Ceti]]. Based on observations of numerous similar disks, they are assumed to be quite common attributes of stars on the [[main sequence]].

[[Interplanetary dust cloud]]s have been studied in the Solar System and analogs are believed to be present in other planetary systems. Exozodiacal dust, an [[exoplanet]]ary analog of [[zodiacal dust]], the 1–100 micrometre-sized grains of [[amorphous carbon]] and [[silicate]] dust that fill the plane of the Solar System<ref>{{cite journal
 |author1=Stark, C. |author2=Kuchner, M. | title=The Detectability of Exo-Earths and Super-Earths Via Resonant Signatures in Exozodiacal Clouds
 | journal=The Astrophysical Journal | year=2008 | volume=686
 | issue = 1
 | pages=637–648
 | bibcode=2008ApJ...686..637S
 | doi = 10.1086/591442 |arxiv = 0810.2702 |s2cid=52233547 }}</ref> has been detected around the [[51 Ophiuchi]], [[Fomalhaut]],<ref>{{cite journal
|author1=Lebreton, J. |author2=van Lieshout, R. |author3=Augereau, J.-C. |author4=Absil, O. |author5=Mennesson, B. |author6=Kama, M. |author7=Dominik, C. |author8=Bonsor, A. |author9=Vandeportal, J. |author10=Beust, H. |author11=Defrère, D. |author12=Ertel, S. |author13=Faramaz, V. |author14=Hinz, P. |author15=Kral, Q. |author16=Lagrange, A.-M. |author17=Liu, W. |author18=Thébault, P. | title= An interferometric study of the Fomalhaut inner debris disk. III. Detailed models of the exozodiacal disk and its origin 
 | journal=Astronomy and Astrophysics | year=2013 | volume=555
 | pages=A146
 | bibcode=2013A&A...555A.146L
 | doi = 10.1051/0004-6361/201321415 |arxiv = 1306.0956 |s2cid=12112032 }}</ref><ref name="VLTI/PIONIER">{{cite journal
|author1=Absil, O. |author2=Le Bouquin, J.-B. |author3=Berger, J.-P. |author4=Lagrange, A.-M. |author5=Chauvin, G. |author6=Lazareff, B. |author7=Zins, G. |author8=Haguenauer, P. |author9=Jocou, L. |author10=Kern, P. |author11=Millan-Gabet, R. |author12=Rochat, S. |author13=Traub, W. | title= Searching for faint companions with VLTI/PIONIER. I. Method and first results  
 | journal=Astronomy and Astrophysics   | year=2011 | volume=535
 | pages=A68
 | bibcode=2011A&A...535A..68A
 | doi = 10.1051/0004-6361/201117719 |arxiv = 1110.1178 |s2cid=13144157 }}</ref> [[Tau Ceti]],<ref name="VLTI/PIONIER" /><ref>{{cite journal
 |author1=di Folco, E. |author2=Absil, O. |author3=Augereau, J.-C. |author4=Mérand, A. |author5=Coudé du Foresto, V. |author6=Thévenin, F. |author7=Defrère, D. |author8=Kervella, P. |author9=ten Brummelaar, T. A. |author10=McAlister, H. A. |author11=Ridgway, S. T. |author12=Sturmann, J. |author13=Sturmann, L. |author14=Turner, N. H. | title=A near-infrared interferometric survey of debris disk stars
 | journal=Astronomy and Astrophysics | year=2007 | volume=475
 | issue = 1
 | pages=243–250
 | bibcode=2007A&A...475..243D
 | doi = 10.1051/0004-6361:20077625 |arxiv = 0710.1731 |s2cid=18317389 }}</ref> and [[Vega]] systems.