description Fine-Ring Nebula Overview
The Fine-Ring Nebula, also catalogued as Shapley 1, is a planetary nebula in the constellation Norma. Its nearly circular shell of glowing gas surrounds a central binary star system whose components orbit one another about once every 2.9 days. The combination of a ring-shaped nebula and a short-period binary makes the object a defined example of a planetary nebula associated with a binary central system.
help Fine-Ring Nebula FAQ
What is the Fine-Ring Nebula also called?
The Fine-Ring Nebula is also catalogued as Shapley 1. It is a planetary nebula in the constellation Norma.
What is at the center of the Fine-Ring Nebula?
Its glowing shell surrounds a central binary star system. The two stars orbit one another about once every 2.9 days.
Why does the Fine-Ring Nebula look like a ring?
Its nearly circular shell of glowing gas creates the fine-ring appearance. The shape is especially striking because it surrounds a close binary central star system.
Is the Fine-Ring Nebula a planet?
No. Despite the name planetary nebula, it is an expanding shell of gas associated with a dying star system, not a planet.
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