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About: Abell 7     Goto   Sponge   NotDistinct   Permalink

An Entity of Type : yago:WikicatPlanetaryNebulae, within Data Space : dbpedia.demo.openlinksw.com associated with source document(s)

Type: yago:Cloud111439690yago:NaturalPhenomenon111408559yago:Nebula109366940yago:Phenomenon100034213yago:PhysicalEntity100001930yago:PhysicalPhenomenon111419404yago:PlanetaryNebula109394797yago:Process100029677staryago:WikicatAbellPlanetaryNebulaeyago:WikicatPlanetaryNebulae New Facet based on Instances of this Class

Abell 7 is a faint planetary nebula located 1800 light-years away in the constellation of Lepus. It has a generally spherical shape about 8 light-years in diameter. Within the sphere are complex details that are brought out by narrowband filters. Abell 7 is estimated to be only 20,000 years old, but the central star, a fading white dwarf, is estimated to be some 10 billion years old.