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5261 Eureka

5261 Eureka is the first Mars trojan discovered. It was discovered by David H. Levy and Henry Holt at Palomar Observatory on 20 June 1990. It trails Mars (at the L5 point) at a distance varying by only 0.3 AU during each revolution (with a secular trend superimposed, changing the distance from 1.5–1.8 AU around 1850 to 1.3–1.6 AU around 2400). Minimum…

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Absolute magnitude (H)
16.0, 16.1
Alternative designations
1990 MB
Aphelion
1.6222 AU (242.68 Gm)
Argument of perihelion
95.456°
Average orbital speed
24.11 km/s
Dimensions
1.3 km ~2–4 kmH

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5261 Eureka

Nodes35
Edges34
Triples50
Avg. degree1.94
Density0.057143
Components1

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5261 Eureka

Top relations

related to External links · 15
5261 Eureka → AstDyS-2, Asteroids, Discovery, Dynamic SiteEphemeris, Ephemeris, Eureka, JPL Small-Body DatabaseClose, Observation, Observational, Orbit, Orbital, Physical, Proper, Robert Johnston, Satellites
related to Satellite · 6
5261 Eureka → Eureka, November, On, September, The, This
Absolute magnitude (H) · 1
5261 Eureka → 16.0, 16.1
Alternative designations · 1
5261 Eureka → 1990 MB
Aphelion · 1
5261 Eureka → 1.6222 AU (242.68 Gm)
Argument of perihelion · 1
5261 Eureka → 95.456°
Average orbital speed · 1
5261 Eureka → 24.11 km/s
Dimensions · 1
5261 Eureka → 1.3 km ~2–4 kmH
Discovered by · 1
5261 Eureka → David H. Levy and Henry Holt
Discovery date · 1
5261 Eureka → 20 June 1990

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Important terminology

eureka 5261 l5 mars asteroids discovered au 1999 trojan david levy orbit 1998 discovery l4 martian orbital point around stable

Entity relationships Subject–Predicate–Object triples

SubjectPredicateObjectConfidenceSrc
5261 EurekaAbsolute magnitude (H)16.0, 16.11.00infobox
5261 EurekaAlternative designations1990 MB1.00infobox
5261 EurekaAphelion1.6222 AU (242.68 Gm)1.00infobox
5261 EurekaArgument of perihelion95.456°1.00infobox
5261 EurekaAverage orbital speed24.11 km/s1.00infobox
5261 EurekaDimensions1.3 km ~2–4 kmH1.00infobox
5261 EurekaDiscovered byDavid H. Levy and Henry Holt1.00infobox
5261 EurekaDiscovery date20 June 19901.00infobox
5261 EurekaEarth MOID0.497052 AU (74.3579 Gm)1.00infobox
5261 EurekaEccentricity0.0647661.00infobox
5261 EurekaGeometric albedo0.391.00infobox
5261 EurekaInclination20.280°1.00infobox
5261 EurekaJupiter MOID3.52162 AU (526.827 Gm)1.00infobox
5261 EurekaKnown satellites11.00infobox
5261 EurekaLongitude of ascending node245.057°1.00infobox
5261 EurekaMean anomaly145.29°1.00infobox
5261 EurekaMean motion0° 31m 26.76s / day1.00infobox
5261 EurekaMinor planet categoryMartian L51.00infobox
5261 EurekaNamed afterEureka1.00infobox
5261 EurekaObservation arc13267 days (36.32 yr)1.00infobox
5261 EurekaOrbital period (sidereal)1.88 yr (686.89 d)1.00infobox
5261 EurekaPerihelion1.4249 AU (213.16 Gm)1.00infobox
5261 EurekaPronunciation/jʊˈriːkə/ yuurr-EE-kə1.00infobox
5261 EurekaSemi-major axis1.5236 AU (227.93 Gm)1.00infobox
5261 EurekaSpectral typeS(I) (Gaffey)1.00infobox
5261 EurekaSynodic rotation period2.6902 h (0.11209 d)1.00infobox
5261 EurekaTemperature~250 K1.00infobox
5261 EurekaTJupiter4.4281.00infobox
5261 Eurekais afirst Mars trojan discovered0.90text

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