24 relations: Apparent magnitude, Binary star, Constellation, Corona Borealis, Latinisation of names, Light-year, Maia (star), Main sequence, Minute and second of arc, NGC 1893, NGC 3766, Open cluster, Orbital eccentricity, Orbital inclination, Orbital period, Orbital plane (astronomy), Radial velocity, Semi-major and semi-minor axes, Slowly pulsating B-type star, Stellar classification, Stellar parallax, Sun, United States Naval Observatory, University of Illinois at Urbana–Champaign.
The apparent magnitude of a celestial object is a number that is a measure of its brightness as seen by an observer on Earth.
A binary star is a star system consisting of two stars orbiting around their common barycenter.
A constellation is a group of stars that are considered to form imaginary outlines or meaningful patterns on the celestial sphere, typically representing animals, mythological people or gods, mythological creatures, or manufactured devices.
Corona Borealis is a small constellation in the Northern Celestial Hemisphere.
Latinisation or Latinization is the practice of rendering a non-Latin name (or word) in a Latin style.
The light-year is a unit of length used to express astronomical distances and measures about 9.5 trillion kilometres or 5.9 trillion miles.
Maia, designated 20 Tauri (abbreviated 20 Tau), is a star in the constellation of Taurus.
In astronomy, the main sequence is a continuous and distinctive band of stars that appear on plots of stellar color versus brightness.
A minute of arc, arcminute (arcmin), arc minute, or minute arc is a unit of angular measurement equal to of one degree.
NGC 1893 is an open cluster in the constellation Auriga.
NGC 3766 is an open star cluster in the southern constellation Centaurus.
An open cluster is a group of up to a few thousand stars that were formed from the same giant molecular cloud and have roughly the same age.
The orbital eccentricity of an astronomical object is a parameter that determines the amount by which its orbit around another body deviates from a perfect circle.
Orbital inclination measures the tilt of an object's orbit around a celestial body.
The orbital period is the time a given astronomical object takes to complete one orbit around another object, and applies in astronomy usually to planets or asteroids orbiting the Sun, moons orbiting planets, exoplanets orbiting other stars, or binary stars.
The orbital plane of a revolving body is the geometric plane on which its orbit lies.
The radial velocity of an object with respect to a given point is the rate of change of the distance between the object and the point.
In geometry, the major axis of an ellipse is its longest diameter: a line segment that runs through the center and both foci, with ends at the widest points of the perimeter.
A slowly pulsating B-type star (SPB), formerly known as a 53 Persei variable, is a type of pulsating variable star.
In astronomy, stellar classification is the classification of stars based on their spectral characteristics.
Stellar parallax is the apparent shift of position of any nearby star (or other object) against the background of distant objects.
The Sun is the star at the center of the Solar System.
The United States Naval Observatory (USNO) is one of the oldest scientific agencies in the United States, with a primary mission to produce Positioning, Navigation and Timing (PNT) for the United States Navy and the United States Department of Defense.
The University of Illinois Urbana–Champaign (also known as U of I, Illinois, or colloquially as the University of Illinois or UIUC) is a public research university in the U.S. state of Illinois and the flagship institution of the University of Illinois System.