“(119070) 2001 KP77”的意思、由来-开放百科全书

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(119070) 2001 KP77

释义

Color
Size
References
External links

{{DISPLAYTITLE:{{mp|(119070) 2001 KP|77}}}}{{Infobox planet
| minorplanet=yes
| background=#C2E0FF
| name={{mp|(119070) 2001 KP|77}}
| discoverer=Marc W. Buie
| discovered=23 May 2001
| alt_names=
| mp_category=TNO
4:7 resonance^[1]
| epoch=13 January 2016 (JD 2457400.5)
| semimajor={{Convert|43.762|AU|Tm|abbr=on}}
| perihelion={{Convert|35.989|AU|Tm|abbr=on}}
| aphelion={{Convert|51.535|AU|Tm|abbr=on|lk=on}}
| eccentricity=0.17762
| period=289.51 yr (105742 d)
| inclination=3.3124°
| asc_node=21.910°
| arg_peri=217.640°
| mean_anomaly=18.078°
| avg_speed=4.45 km/s
| dimensions=110–240 km?^[2]
| mass=1.4-14{{e|18}} kg?
| density=
| surface_grav=0.03-0.07? m/s²
| escape_velocity=0.06-0.13? km/s
| rotation=
| spectral_type=(Red; highest TNO B−V)
1.544 (B−V); 0.61 (V-R)
| abs_magnitude=7.0
| albedo=0.10?
| single_temperature=~42 K
| mean_motion={{Deg2DMS|0.0034045|sup=ms}} / day
| orbit_ref=^[3]
| observation_arc=1449 days (3.97 yr)
| uncertainty=4
| moid={{Convert|34.9768|AU|Tm|abbr=on}}
| jupiter_moid={{Convert|30.6123|AU|Tm|abbr=on}}
}}

{{mp|(119070) 2001 KP|77}} (also written (119070) 2001 KP77) is a 4:7 resonant^[1] trans-Neptunian object (TNO) located in the Kuiper belt. It was discovered on May 23, 2001, by Marc W. Buie at Cerro Tololo.

Color

{{mp|2001 KP|77}} has the highest, and thus reddest measured B−V color index of any TNO. On April 19, 2002, {{mp|2001 KP|77}} set a TNO record B−V of 1.544. In the visible spectrum {{mp|2001 KP|77}} would appear an orange-brown depending on its albedo.{{citation needed|date=April 2017}}

Size

Based on an absolute magnitude (H) of 6.93, {{mp|2001 KP|77}} is estimated to be between 110 – 240 km in diameter.^[4]

References

1. ^¹{{cite web |author=Marc W. Buie |author-link=Marc W. Buie |date=2005-05-11 |title=Orbit Fit and Astrometric record for 119070 |publisher=SwRI (Space Science Department) |url=http://www.boulder.swri.edu/~buie/kbo/astrom/119070.html |accessdate=2008-09-19}}
2. ^H
3. ^{{cite web |url=http://ssd.jpl.nasa.gov/sbdb.cgi?sstr=119070;cad=1 |title=JPL Small-Body Database Browser: 119070 (2001 KP77) |publisher=NASA/Jet Propulsion Laboratory |access-date=7 April 2016}}
4. ^Conversion of Absolute Magnitude to Diameter {{webarchive |url=https://www.webcitation.org/5PqnLpqTT?url=http://cfa-www.harvard.edu/iau/lists/Sizes.html |date=June 25, 2007 }}

External links

4:7 Resonance, Johnston's Archive
[https://web.archive.org/web/20060908123211/http://www.psi.edu/pds/asteroid/EAR_A_COMPIL_3_TNO_CEN_COLOR_V3_0/data/tnocencol.tab TNO Colors]
[https://www.webcitation.org/5TO84zdpq?url=http://www.physics.nau.edu/~tegler/research/survey.htm KBO Surface Colors]
{{JPL small body|id=119070}}

{{Minor planets navigator| |number=119070|PageName={{mp|(119070) 2001 KP|77}}| }}{{Small Solar System bodies}}{{Trans-Neptunian objects}}{{DEFAULTSORT:2001 KP77}}{{centaurTNO-stub}}

3 : 4:7 resonance|Discoveries by Marc W. Buie|Astronomical objects discovered in 2001

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