Matches in DBpedia 2016-04 for { ?s ?p "1511 Daléra, provisional designation 1939 FB, is a stony asteroid from the inner regions of the asteroid belt, about 8 kilometers in diameter. It was discovered by French astronomer Louis Boyer at the Algerian Algiers Observatory, North Africa, on 22 March 1939.The S-type asteroid orbits the Sun at a distance of 2.1–2.6 AU once every 3 years and 7 months (1,322 days). Its orbit shows an eccentricity of 0.11 and is tilted by 4 degrees to the plane of the ecliptic. It has a rotation period of 3.9 and 4.2 hours, determined by independent observations in 2015, respectively.Based on NASA's magnitude-to-diameter conversion table, and on a absolute magnitude of 12.8, its diameter could be anywhere between 7 and 17 kilometers, assuming an albedo in the range of 0.05 to 0.25. Data from the Infrared Astronomical Satellite, IRAS, gave a large diameter of 15 kilometers, based on a corresponding low albedo of 0.06, which is typical for dark asteroids with a carbonaceous composition. However, the Collaborative Asteroid Lightcurve Link (CALL) calculates the body's diameter to be much smaller, about 7 kilometers in diameter, using a transformed absolute magnitude of 13.1 and an assumed, higher albedo of 0.20, which is a typical value for silicaceous asteroids, that are abundant in the inner main-belt. In general, estimates of an asteroid's size are commonly based on the body's brightness. For a given absolute magnitude, the lower the body's reflectivity (albedo), the larger its calculated diameter.The minor planet was named after Paul Daléra, a friend of Louis Boyer."@en }
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- 1511_Daléra abstract "1511 Daléra, provisional designation 1939 FB, is a stony asteroid from the inner regions of the asteroid belt, about 8 kilometers in diameter. It was discovered by French astronomer Louis Boyer at the Algerian Algiers Observatory, North Africa, on 22 March 1939.The S-type asteroid orbits the Sun at a distance of 2.1–2.6 AU once every 3 years and 7 months (1,322 days). Its orbit shows an eccentricity of 0.11 and is tilted by 4 degrees to the plane of the ecliptic. It has a rotation period of 3.9 and 4.2 hours, determined by independent observations in 2015, respectively.Based on NASA's magnitude-to-diameter conversion table, and on a absolute magnitude of 12.8, its diameter could be anywhere between 7 and 17 kilometers, assuming an albedo in the range of 0.05 to 0.25. Data from the Infrared Astronomical Satellite, IRAS, gave a large diameter of 15 kilometers, based on a corresponding low albedo of 0.06, which is typical for dark asteroids with a carbonaceous composition. However, the Collaborative Asteroid Lightcurve Link (CALL) calculates the body's diameter to be much smaller, about 7 kilometers in diameter, using a transformed absolute magnitude of 13.1 and an assumed, higher albedo of 0.20, which is a typical value for silicaceous asteroids, that are abundant in the inner main-belt. In general, estimates of an asteroid's size are commonly based on the body's brightness. For a given absolute magnitude, the lower the body's reflectivity (albedo), the larger its calculated diameter.The minor planet was named after Paul Daléra, a friend of Louis Boyer.".
- Q140297 abstract "1511 Daléra, provisional designation 1939 FB, is a stony asteroid from the inner regions of the asteroid belt, about 8 kilometers in diameter. It was discovered by French astronomer Louis Boyer at the Algerian Algiers Observatory, North Africa, on 22 March 1939.The S-type asteroid orbits the Sun at a distance of 2.1–2.6 AU once every 3 years and 7 months (1,322 days). Its orbit shows an eccentricity of 0.11 and is tilted by 4 degrees to the plane of the ecliptic. It has a rotation period of 3.9 and 4.2 hours, determined by independent observations in 2015, respectively.Based on NASA's magnitude-to-diameter conversion table, and on a absolute magnitude of 12.8, its diameter could be anywhere between 7 and 17 kilometers, assuming an albedo in the range of 0.05 to 0.25. Data from the Infrared Astronomical Satellite, IRAS, gave a large diameter of 15 kilometers, based on a corresponding low albedo of 0.06, which is typical for dark asteroids with a carbonaceous composition. However, the Collaborative Asteroid Lightcurve Link (CALL) calculates the body's diameter to be much smaller, about 7 kilometers in diameter, using a transformed absolute magnitude of 13.1 and an assumed, higher albedo of 0.20, which is a typical value for silicaceous asteroids, that are abundant in the inner main-belt. In general, estimates of an asteroid's size are commonly based on the body's brightness. For a given absolute magnitude, the lower the body's reflectivity (albedo), the larger its calculated diameter.The minor planet was named after Paul Daléra, a friend of Louis Boyer.".