I already answered this on your other post but here it is again so i can get the extra 5pts
Explanation:
Neptune is surrounded by unusual rings, which aren't uniform, but possess bright thick clumps of dust called arcs. The rings are thought to be relatively young and short-lived.
The dogg_oflish_arias point file has an undefined coordinate system, although it looks like any other Austin data in NAD 1983 State Plains Texas Central. Dog_offleash_bnd The polygon file is in an unlisted GCS file.
Another answer is the map. Method: Load the arteries in the new map document. Add the DogPoint file, which appears with a warning. Check the coordinate system to make sure it is unleaded and use Define Projection to determine if it matches other Austin data on the state plane. Add an invisible dog polygon file.
Check it to make sure the coordinate system is not labeled and has degrees. Use project define to label it as GCS_NAD_1983, and then it will appear with the rest of the data. It can be projected onto a state plane if desired, but does not require mapping.
Are you referring to on an international level or national? Internationally it developed in the Soviet Union and the United States, nationally it was based in Texas.