Chapter 2 Vocabulary..... The Sky Crossword

Well-defined regions on the sky, irrespective of the presence or absence of bright stars in those regions
A star pattern that is not officially recognized by the international scientific community as a constellation
First Introduce by Hipparchus
The brightness of an object as seen from our planet
The generation of a physical, conceptual, or mathematical representation of a real phenomenon that is difficult to observe directly
An imaginary sphere of arbitrarily large radius, concentric with Earth
Boundary where the sky seems to meet the ground or sea
Direction directly above an observer on Earth
Direction directly below an observer on Earth
The northern imaginary point in the sky where the Earth's axis of rotation intersects the celestial sphere
The southern imaginary point in the sky where the Earth's axis of rotation intersects the celestial sphere
The point straight overhead on the celestial sphere for any observer is called the zenith and is always 90 degrees from the horizon
The point straight underneath on the celestial sphere for any observer is called the zenith and is always 90 degrees from the horizon
Eye-level line of sight swept all around the sky, that would define the astronomical horizon
Eye-level line of sight swept all around the sky, that would define the astronomical horizon
Distance of a celestial body north or to the south of the celestial equator
A unit of angular measurement equal to one-sixtieth of one degree
A unit of measurement that amounts to one sixtieth of an arc minute