513 Centesima
Main-belt asteroid
title: "513 Centesima" type: doc version: 1 created: 2026-02-28 author: "Wikipedia contributors" status: active scope: public tags: ["eos-asteroids", "discoveries-by-max-wolf", "named-minor-planets", "s-type-asteroids-(tholen)", "k-type-asteroids-(smass)", "astronomical-objects-discovered-in-1903"] description: "Main-belt asteroid" topic_path: "general/eos-asteroids" source: "https://en.wikipedia.org/wiki/513_Centesima" license: "CC BY-SA 4.0" wikipedia_page_id: 0 wikipedia_revision_id: 0
::summary Main-belt asteroid ::
::data[format=table title="Infobox planet"]
| Field | Value |
|---|---|
| minorplanet | yes |
| background | #D6D6D6 |
| name | 513 Centesima |
| discovery_ref | |
| discoverer | Max Wolf |
| discovered | 24 August 1903 |
| discovery_site | Heidelberg Observatory |
| mpc_name | (513) Centesima |
| pronounced | |
| alt_names | |
| mp_category | Main belt |
| orbit_ref | |
| epoch | 31 July 2016 (JD 2457600.5) |
| (JD 2456400.5) | |
| uncertainty | 0 |
| observation_arc | 112.65 yr (41144 d) |
| aphelion | 3.2648 AU |
| perihelion | 2.7679 AU |
| semimajor | 3.0163 AU |
| eccentricity | 0.082371 |
| period | 5.24 yr (1913.5 d) |
| inclination | 9.7329° |
| asc_node | 184.45° |
| arg_peri | 226.24° |
| mean_anomaly | 146.99° |
| mean_radius | km (IRAS) |
| escape_velocity | ~25 m/s |
| sidereal_day | 4.792 ± |
| albedo | |
| spectral_type | S (Tholen) |
| K (SMASSII) | |
| abs_magnitude | 9.75 |
| mean_motion | / day |
| :: |
| minorplanet= yes | background= #D6D6D6 | name= 513 Centesima | discovery_ref= | discoverer= Max Wolf | discovered= 24 August 1903 | discovery_site= Heidelberg Observatory | mpc_name= (513) Centesima | pronounced= | alt_names= | mp_category = Main belt | orbit_ref= | epoch= 31 July 2016 (JD 2457600.5) (JD 2456400.5) | uncertainty = 0 | observation_arc= 112.65 yr (41144 d) | aphelion= 3.2648 AU | perihelion= 2.7679 AU | semimajor= 3.0163 AU | eccentricity = 0.082371 | period= 5.24 yr (1913.5 d) | inclination= 9.7329° | asc_node= 184.45° | arg_peri= 226.24° | mean_anomaly= 146.99° | dimensions= | mean_radius= km (IRAS) | escape_velocity= ~25 m/s | sidereal_day= 4.792 ± | albedo= | spectral_type= S (Tholen) K (SMASSII) | abs_magnitude= 9.75 | mean_motion= / day
513 Centesima is a 50 km Main-belt asteroid orbiting the Sun. It is one of the core members of the Eos family of asteroids. Relatively little is known about this tiny asteroid. It is not known to possess any natural satellites, so its mass is unknown. However, its brief rotation period of just over 5 hours implies that the body must be exceptionally dense, for its gravity is able counteract the centrifugal force. It was discovered 24 August 1903 by late-nineteenth- and early-twentieth-century astronomer Max Wolf.
History
Centesima was discovered on 24 August 1903 by astronomer Max Wolf at Heidelberg Observatory, where it was given the old-style provisional designation . The asteroid then received its permanent number (513) by 1905, and was given the name Centesima by 1907. The name commemorates the asteroid as Wolf's 100th minor planet discovery.
In 1925, the old-style minor planet provisional designation scheme was replaced by the system currently in use. the Minor Planet Center (MPC) has since retroactively applied the new-style system to pre-1925 designations. Thus, Centesima's provisional designation given upon its discovery was changed to .
Orbit
Centesima orbits the Sun at an average distance—its semi-major axis—of 3.01 astronomical units (AU), taking 5.23 years to complete one revolution. Along its orbit, its distance from the Sun varies between 2.75 AU at perihelion to 3.28 AU at aphelion due to its orbital eccentricity of 0.087. Its orbit is inclined by 9.73° with respect to the ecliptic plane. It is a member of the Eos family, a vast and ancient asteroid family located in the outer main belt.
Physical characteristics
Centesima is estimated to be 48.8 km in size. It is classified as an S-type asteroid in the Tholen classification scheme, and a K-type asteroid in the Small Main-belt Asteroid Spectroscopic Survey, Phase II (SMASSII) classification scheme. Based on observations of its lightcurve, or variations in its observed brightness, Centesima has a rotation period of 4.79 hours.
Notes
References
|title = (513) Centesima = 1903 QD = 1914 WB = 1916 BC = 1950 RM1 |url = https://www.minorplanetcenter.net/db_search/show_object?object_id=513 |publisher = Minor Planet Center |access-date = 22 November 2025
|type=2012-09-28 last obs |title=JPL Small-Body Database Browser: 513 Centesima (1903 LY) |url=https://ssd.jpl.nasa.gov/sbdb.cgi?sstr=513 |publisher=Jet Propulsion Laboratory |access-date=8 May 2016}}
|title=Notes on some Points connected with the Progress of Astronomy during the Past Year |date=12 February 1904 |journal=Monthly Notices of the Royal Astronomical Society |volume=64 |issue=4 |pages=343–377 |doi=10.1093/mnras/64.4.343 |doi-access=free
|title=Notes on some Points connected with the Progress of Astronomy during the Past Year |date=10 February 1905 |journal=Monthly Notices of the Royal Astronomical Society |volume=65 |issue=4 |pages=382–406 |doi=10.1093/mnras/65.4.382 |doi-access=free
|title=Notes on some Points connected with the Progress of Astronomy during the Past Year |date=8 February 1907 |journal=Monthly Notices of the Royal Astronomical Society |volume=67 |issue=4 |pages=269–293 |doi=10.1093/mnras/67.4.269 |doi-access=free
|title=Provisional Designations |publisher=Minor Planets Center |url=https://www.minorplanetcenter.net/mpcops/documentation/provisional-designation-definition/#oldstyle_provid |access-date=5 November 2025 |archive-url=https://web.archive.org/web/20250711184655/https://www.minorplanetcenter.net/mpcops/documentation/provisional-designation-definition/#oldstyle_provid |archive-date=11 July 2025
|last=Schmadel |first=Lutz D. |authorlink=Lutz D. Schmadel |title=Dictionary of Minor Planet Names |url=https://books.google.com/books?id=eHv1CAAAQBAJ&pg=PA70 |edition=6 |volume=2 |date=11 November 2013 |publisher=Springer Berlin, Heidelberg |isbn=978-3-642-29717-5 |pages=1452 |doi=10.1007/978-3-642-29718-2}}
|last1=Burbine |first1=Thomas H. |last2=Binzel |first2=Richard P. |title=Small Main-Belt Asteroid Spectroscopic Survey in the Near-Infrared |date=October 2002 |journal=Icarus |volume=159 |issue=2 |pages=468–499 |doi=10.1006/icar.2002.6902 |bibcode=2002Icar..159..468B
|last1=Tsirvoulis |first1=Georgios |title=Discovery of a young subfamily of the (221) Eos asteroid family |date=January 2019 |journal=Monthly Notices of the Royal Astronomical Society |volume=482 |issue=2 |pages=2612–2618 |doi=10.1093/mnras/sty2898 |doi-access=free |arxiv=1810.10864 |bibcode=2019MNRAS.482.2612T
|last1=Mothé-Diniz |first1=T. |last2=Carvano |first2=J. M. |last3=Bus |first3=S. J. |last4=Duffard |first4=R. |last5=Burbine |first5=T. H. |title=Mineralogical analysis of the Eos family from near-infrared spectra |date=May 2008 |journal=Icarus |volume=195 |issue=1 |pages=277–294 |doi=10.1016/j.icarus.2007.12.005 |bibcode=2008Icar..195..277M
|last1=Farfán |first1=Rafael González |display-authors=et al. |title=Review of Rotation Curves and Periods of 32 Asteroids |date=July 2025 |journal=The Minor Planet Bulletin |volume=52 |number=3 |pages=246–253 |bibcode=2025MPBu...52..246F
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