| 词条 | (350462) 1998 KG3 |
| 释义 |
| minorplanet = yes | background = #FFC2E0 | name = {{mp|(350462) 1998 KG|3}} | image = | caption = | discovery_ref = [1][2] | discoverer = Spacewatch | discovery_site = Kitt Peak Obs. | discovered = 22 May 1998 | mpc_name = {{mp|1998 KG|3}} | mp_category = NEO{{·}}AMO [1] | orbit_ref = [1][2] | epoch = 22 June 2010 (JD 2455369.5) | aphelion = {{Convert|1.29874461|AU|Gm|abbr=on|lk=on}} (Q) | perihelion = {{Convert|1.0232235|AU|Gm|abbr=on}} (q) | semimajor = {{Convert|1.16098404|AU|Gm|abbr=on}} (a) | eccentricity = 0.1186585 (e) | period = 1.25 yr (456.92 d) | mean_anomaly = 346.17186° (M) | inclination = 5.5028144° (i) | asc_node = 208.04450° (Ω) | arg_peri = 267.63305° (ω) | dimensions = 0.10–0.24 km[3] | mass = | density = | albedo = | spectral_type = | abs_magnitude = 22.1[1][3] | mean_motion = {{Deg2DMS|0.78788839|sup=ms}} / day (n) | observation_arc = 5473 days (14.98 yr) | uncertainty = 0 | moid = {{Convert|0.0971038|AU|Gm|abbr=on}} | tisserand = 5.416 }}{{mp|(350462) 1998 KG|3}}, is a sub-kilometer asteroid and near-Earth object of the Amor group, that is on a low-eccentricity and low-inclination orbit between the orbits of Earth and Mars. It was discovered by the Spacewatch survey at Kitt Peak National Observatory on 22 May 1998.[1] Description{{mp|1998 KG|3}} is an Amor asteroid, because its perihelion is less than 1.3 AU and does not cross Earth's orbit.[1] The asteroid measures approximately 100–240 meters in diameter.[3]Its orbit is within a region of stability where bodies may survive for the age of the Solar System, and hence it may have formed near its current orbit.[4] Between 1900 and 2200 its closest approach to Earth is more than 0.12 AU.[5] See also
References1. ^1 2 3 4 5 {{cite web |type=2008-05-10 last obs |title=JPL Small-Body Database Browser: (1998 KG3) |url=http://ssd.jpl.nasa.gov/sbdb.cgi?sstr=1998KG3 |accessdate=8 April 2016}} 2. ^AstDys-2 Retrieved 2011-09-05 3. ^1 2 3 NeoDys-2 Retrieved 2011-09-05 4. ^Evans, N. W. & Tabachnik, S. (1999). Possible long-lived asteroid belts in the inner Solar System. Nature. 5. ^JPL close-approach data Retrieved 2011-09-05 External links
4 : Amor asteroids|Earth–Mars belt|Discoveries by the Spacewatch project|Astronomical objects discovered in 1998 |
| 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。