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{{Infobox planet
| minorplanet= yes
| background= #D6D6D6
| image= 683Lanzia (Lightcurve Inversion).png
| image_size = 265
| caption= A three-dimensional model of 683 Lanzia based on its light curve
| name= 683 Lanzia
| mpc_name= (683) Lanzia
| alt_names= 1909 HC
| discoverer= Max Wolf
| discovered= 23 July 1909
| discovery_site= Heidelberg
| epoch= 31 July 2016 (JD 2457600.5)
| eccentricity= 0.056013
| semimajor= {{Convert|3.1146|AU|Gm|abbr=on}}
| perihelion= {{Convert|2.9402|AU|Gm|abbr=on}}
| aphelion= {{Convert|3.2891|AU|Gm|abbr=on|lk=on}}
| period= 5.50 yr (2007.7 d)
| inclination= 18.509°
| asc_node= 259.724°
| arg_peri= 283.703°
| mean_anomaly= 278.966°
| mean_motion= {{Deg2DMS|0.17931|sup=ms}} / day
| orbit_ref= [1]
| observation_arc= 101.75 yr (37,164 d)
| uncertainty= 0
| abs_magnitude= 8.7
| rotation= {{Convert|8.630|h|d|abbr=on|lk=on}}
| albedo= {{val|0.1474|0.128}}
| mean_radius= {{val|41.52|11.1}} km
}}683 Lanzia is a minor planet orbiting the Sun. It was discovered July 23, 1909, by Max Wolf at the Landessternwarte Heidelberg-Königstuhl observatoryObservations during two last occultation 18 and 22 December 2010 (P.Baruffetti, G. Tonlorenzi - Massa, G. Bonatti - Carrara, R. Di Luca - Bologna (Italy), C. Schnabel - S. Estebe, J. Rovira - Moja (Spain)) measured a 122.5 km diameter (medium) and an Albedo of 0.0705 compatible with carbonaceous asteroids (C group). References1. ^{{Cite web |url=http://ssd.jpl.nasa.gov/sbdb.cgi?sstr=683;cad=1 |title=683 Lanzia (1909 HC) |work=JPL Small-Body Database |publisher=NASA/Jet Propulsion Laboratory |access-date=5 May 2016}}
}} External links - {{AstDys|683}}
- {{JPL small body}}
{{Minor planets navigator |682 Hagar |number=683 |684 Hildburg}}{{Small Solar System bodies}}{{DEFAULTSORT:Lanzia}}{{beltasteroid-stub}} 5 : Background asteroids|Discoveries by Max Wolf|Minor planets named for people|Named minor planets|Astronomical objects discovered in 1909 |