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词条 3362 Khufu
释义

  1. Orbit

  2. See also

  3. References

  4. External links

{{Infobox planet
| minorplanet = yes
| background = #FFC2E0
| name = 3362 Khufu
| image = 3362 Khufu orbit (10-29-07).png
| image_size = 255
| caption = 3362 Khufu on November 29, 2007
Khufu takes about 359.47 days to orbit the Sun. 
| discovery_ref =
| discoverer = R. S. Dunbar
M. A. Barucci
| discovery_site = Palomar
| discovered = 30 August 1984
| discovery_method =
| mpc_name = (3362) Khufu
| alt_names =
| mp_category = PHA
| orbit_ref =
| epoch = 13 January 2016 (JD 2457400.5)
| perihelion = {{Convert|0.52589|AU|Gm|abbr=on}}
| aphelion = {{Convert|1.4531|AU|Gm|abbr=on|lk=on}}
| semimajor = {{Convert|0.98951|AU|Gm|abbr=on}}
| eccentricity = 0.46853
| period = 0.98 yr (359.5 d)
| inclination = 9.9173°
| dimensions = 0.7 km
| rotation =
| abs_magnitude = 18.3
| spectral_type = B-type asteroid[1]
| density =
| mass =
| albedo = 0.21[2]
| asc_node = 152.45°
| arg_peri = 55.035°
| mean_anomaly = 35.759°
| mean_motion = 1.0013°/day
| mean_radius = 0.35 km
| observation_arc = 7394 days (20.24 yr)
| uncertainty = 0
| moid = {{Convert|0.0130121|AU|Gm|abbr=on}}
}}

3362 Khufu is a near-Earth asteroid. It was discovered by R. Scott Dunbar and Maria A. Barucci at the Palomar Observatory in San Diego County, California, on August 30, 1984. Its provisional designation was 1984 QA. It is named after Khufu, an ancient Egyptian pharaoh. Khufu was the 4th Aten asteroid to be numbered.

3362 Khufu is a potentially hazardous asteroid (PHA) because its minimum orbit intersection distance (MOID) is less than 0.05 AU and its diameter is greater than 150 meters. The Earth-MOID is {{convert|0.0135|AU|km mi|abbr=on|lk=on}}. Its orbit is well-determined for the next several hundred years.

Khufu crosses the orbits of Mars, Earth, and Venus and makes close approaches to Mercury as well. From 1900 to 2100 it drew nearer than 30 Gm (0.2 AU) to Mercury 26, Venus 27, Earth 20, and Mars 11 times.

Orbit

See also

  • Venus-crosser asteroid
  • Mars-crosser asteroid

References

1. ^based on a high-resolution spectrum by Xu et al. (1995) or Bus and Binzel (2002)
2. ^Hazards due to Comets and Asteroids (1994), Ed. T. Gehrels, pp.540-543

}}

External links

  • [https://www.webcitation.org/5gOzK38bc?url=http://chemistry.unina.it/~alvitagl/solex/ calculations by SOLEX ]
  • {{NeoDys|3362}}
  • {{JPL Small Body}}
{{Use dmy dates|date=May 2018}}{{Minor planets navigator |3361 Orpheus |number=3362 |3363 Bowen}}{{Small Solar System bodies}}{{DEFAULTSORT:Khufu}}{{NE-asteroid-stub}}

8 : Aten asteroids|Discoveries by R. Scott Dunbar|Discoveries by Maria A. Barucci|Minor planets named for people|Named minor planets|Khufu|Potentially hazardous asteroids|Astronomical objects discovered in 1984

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