Matches in DBpedia 2014 for { ?s ?p 154 Bertha is a main-belt asteroid. It was discovered by the French brothers Paul Henry and Prosper Henry on November 4, 1875, but the credit for the discovery was given to Prosper. It is probably named after Berthe Martin-Flammarion, sister of the astronomer Camille Flammarion.Observations performed at the Palmer Divide Observatory in Colorado Springs, Colorado in during 2007 produced a light curve with a period of 22.30 ± 0.03 hours and a brightness range of 0.10 ± 0.02 in magnitude.. }
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- 154_Bertha comment "154 Bertha is a main-belt asteroid. It was discovered by the French brothers Paul Henry and Prosper Henry on November 4, 1875, but the credit for the discovery was given to Prosper. It is probably named after Berthe Martin-Flammarion, sister of the astronomer Camille Flammarion.Observations performed at the Palmer Divide Observatory in Colorado Springs, Colorado in during 2007 produced a light curve with a period of 22.30 ± 0.03 hours and a brightness range of 0.10 ± 0.02 in magnitude.".