Explanatory comment

Circumstances of entry into the NOC: - Interest - Case - Professional Function (for example, designer) - Institution - Consultation (Expertise) - Other

Night

N

The period of time during which, for a certain point on the surface of the celestial body, the central luminary is below the horizon.

Types of nights:
- extreme
- Scary
- One -act
- Structural
- Dangerous
- Safe
- Boring
- Crime
- Other