Systematic name

A systematic name is a name given in a systematic way to one unique group, organism, object or chemical substance, out of a specific population or collection. Systematic names are usually part of a nomenclature.

A semisystematic name or semitrivial name is a name that has at least one systematic part and at least one trivial part.

Creating systematic names can be as simple as assigning a prefix or a number to each object (in which case they are a type of numbering scheme), or as complex as encoding the complete structure of the object in the name. Many systems combine some information about the named object with an extra sequence number to make it into a unique identifier.

Systematic names often co-exist with earlier common names assigned before the creation of any systematic naming system. For example, many common chemicals are still referred to by their common or trivial names, even by chemists.

In chemistry

In chemistry, a systematic name describes the chemical structure of a substance, thus giving some information about its chemical properties.

Biela

Biela may refer to:

Biela (river)

The Biela is a river in eastern Germany and northern Czech Republic, a left tributary of the Elbe. The source near Ostrov u Tisé, in the Bohemian Switzerland, northwest of Děčín. After a few km it crosses into Saxony (and the Saxon Switzerland). The town Königstein is located at the confluence of the Biela with the Elbe.

Coordinates: 50°55′N 14°05′E / 50.917°N 14.083°E / 50.917; 14.083

Biela (crater)

Biela is a lunar impact crater that is located in the rugged highlands of the southeastern Moon. The crater lies to the east of Rosenberger, to the southeast of the Watt–Steinheil double crater.

The rim of this crater is overlaid by a pair of small but notable craters: Biela C across the northeast rim and Biela W along the western inner wall. The satellite crater Biela B is attached to the southwestern outer rim, and ejecta from Biela covers the northwestern part of the interior. Despite a certain degree of wear, the rim of Biela remains relatively well-defined, especially in the southeast.

The interior floor is flat and not marked by any craterlets of note. There is a central peak formation of three ridges located just to the northeast of the midpoint.

Satellite craters

By convention these features are identified on lunar maps by placing the letter on the side of the crater midpoint that is closest to Biela.

References