“630 Euphemia”的意思、由来-开放百科全书

词条

630 Euphemia

释义

References
External links

{{Infobox planet
| minorplanet=yes
| background=#D6D6D6
| name=630 Euphemia
| discoverer=August Kopff
| discovered=7 March 1907
| mpc_name=(630) Euphemia
| alt_names=1907 XW; A924 DC
| named_after=Euphemia
| mp_category=Main belt (Eunomia family)
| epoch=31 July 2016 (JD 2457600.5)
| semimajor={{Convert|2.6244|AU|Gm|abbr=on}}
| perihelion={{Convert|2.3334|AU|Gm|abbr=on}}
| aphelion={{Convert|2.9153|AU|Gm|abbr=on|lk=on}}
| eccentricity=0.11086
| period=4.25 yr (1552.9 d)
| inclination=13.855°
| asc_node=105.419°
| arg_peri=40.148°
| mean_anomaly=273.57°
| dimensions=
| mean_radius={{val|8.605|0.45}} km^[1]
8.5 km^[2]
| mass=
| density=~2.7 g/cm³^[3]
| rotation={{Convert|350|h|d|abbr=on|lk=on}}
| spectral_type=S-type asteroid
| abs_magnitude=11.1
| albedo={{val|0.2375|0.027}}
| mean_motion={{Deg2DMS|0.23183|sup=ms}} / day
| orbit_ref=^[1]
| observation_arc=91.87 yr (33557 d)
| uncertainty=0
}}

630 Euphemia is a mid-sized Eunomian asteroid.

Photometric observations at the Palmer Divide Observatory

during 2005 showed a best fit rotation period of 79.18 ± 0.02 hours with a brightness

variation of 0.2 ± 0.02 in magnitude. However, some uncertainty remains concerning the reliability of this result.

References

1. ^¹{{Cite web |url=http://ssd.jpl.nasa.gov/sbdb.cgi?sstr=630;cad=1 |title=630 Euphemia (1907 XW) |work=JPL Small-Body Database |publisher=NASA/Jet Propulsion Laboratory |access-date=7 May 2016}}
2. ^¹{{cite web|url=http://www.psi.edu/pds/archive/astdata04/simps04/diamalb.tab |title=Supplemental IRAS Minor Planet Survey |deadurl=yes |archiveurl=https://web.archive.org/web/20060623213811/http://www.psi.edu/pds/archive/astdata04/simps04/diamalb.tab |archivedate=2006-06-23 |df= }}
3. ^¹{{cite journal |author=G. A. Krasinsky |display-authors=etal |title=Hidden Mass in the Asteroid Belt |journal=Icarus |volume=158 |page=98 |date=2002 |doi=10.1006/icar.2002.6837|bibcode = 2002Icar..158...98K }}

^[2]^[3]
}}

External links

Lightcurve plot of 630 Euphemia, Palmer Divide Observatory, B. D. Warner (2005)
Asteroid Lightcurve Database (LCDB), query form (info)
[https://books.google.com/books?id=aeAg1X7afOoC&pg Dictionary of Minor Planet Names], Google books
Asteroids and comets rotation curves, CdR – Observatoire de Genève, Raoul Behrend
Discovery Circumstances: Numbered Minor Planets (1)-(5000) – Minor Planet Center
{{JPL small body}}

{{Minor planets navigator|629 Bernardina|number=630|631 Philippina}}{{Small Solar System bodies}}{{DEFAULTSORT:000630}}{{S-beltasteroid-stub}}

随便看

开放百科全书收录14589846条英语、德语、日语等多语种百科知识，基本涵盖了大多数领域的百科知识，是一部内容自由、开放的电子版国际百科全书。