“206 Hersilia”的意思、由来-开放百科全书

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206 Hersilia

释义

References
External links

{{Infobox planet
| minorplanet=yes
| background=#D6D6D6
| name=206 Hersilia
| discoverer=C. H. F. Peters
| discovered=13 October 1879
| mpc_name=(206) Hersilia
| alt_names=1961 WG, 1974 PM
| named_after=Hersilia
| mp_category=Main belt
| epoch=31 July 2016 (JD 2457600.5)
| semimajor={{Convert|2.74055|AU|Gm|abbr=on}}
| perihelion={{Convert|2.63811|AU|Gm|abbr=on}}
| aphelion={{Convert|2.84299|AU|Gm|abbr=on|lk=on}}
| eccentricity=0.037379
| period=4.54 yr (1657.1 d)
| inclination=3.77868°
| asc_node=145.169°
| arg_peri=299.705°
| mean_anomaly=348.975°
| avg_speed=17.99 km/s
| dimensions=113 km
| mass=
| density=
| rotation={{Convert|11.122|h|d|abbr=on|lk=on}}
| spectral_type=C
| abs_magnitude=8.68
| albedo=0.055
| single_temperature=unknown
| mean_motion={{Deg2DMS|0.217244|sup=ms}} / day
| orbit_ref=^[1]
| observation_arc=136.34 yr (49798 d)
| uncertainty=0
}}

Hersilia (minor planet designation: 206 Hersilia) is a fairly large Main belt asteroid. It was discovered by C. H. F. Peters on October 13, 1879, in Clinton, New York. The asteroid was named after Hersilia, Roman wife of Romulus. It is classified as a primitive, dark carbon-rich C-type asteroid.

Measurements made with the IRAS observatory give a diameter of 101.72 ± 5.18 km and a geometric albedo of 0.06 ± 0.01. By comparison, the MIPS photometer on the Spitzer Space Telescope gives a diameter of 97.99 ± 7.40 km and a geometric albedo of 0.06 ± 0.02.

The last close earth transit was in November and December 2002.

References

1. ^{{Cite web |url=http://ssd.jpl.nasa.gov/sbdb.cgi?sstr=206;cad=1 |title=206 Hersilia |work=JPL Small-Body Database |publisher=NASA/Jet Propulsion Laboratory |access-date=12 May 2016}}

}}

External links

The Asteroid Orbital Elements Database
Minor Planet Discovery Circumstances
[https://archive.is/20060614093519/http://www.psi.edu/pds/archive/lc.html Asteroid Lightcurve Parameters]
[https://web.archive.org/web/20041205000314/http://www.psi.edu/pds/archive/albedo.html Asteroid Albedo Compilation]
{{AstDys|206}}
{{JPL small body}}

{{Minor planets navigator|205 Martha|number=206|207 Hedda}}{{Small Solar System bodies}}{{DEFAULTSORT:000206}}{{C-beltasteroid-stub}}

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