ASTRONOMICAL OBJECT. include a specific object (examples: the planet Venus, the Andromeda galaxy) or a class of objects (examples: black holes, comets, dark matter). 

In your post, compose a paragraph or two and include the following: you  cannot use Venus, hoags object, Jupiter, or sombrero galaxy

• The name of the object.
• A description including such points as: origin, formation, composition, important related processes, etc.
• Where it is found, and how it is that we know about it (how is it seen, sampled, detected, etc.)
• A discussion of its value or significance to us. In other words – why should we care about your object.
• Feel free to include an image of your object (not required).
• Include the NAMES and SOURCES of the materials you used to find the information you used in your post.