Albedo (albedo, meaning "whiteness") is the measure of the diffuse reflection of solar radiation out of the total solar radiation received by an astronomical body (e.g. a planet like Earth).
Asteroids are minor planets, especially those of the inner Solar System.
The asteroid belt is the circumstellar disc in the Solar System located roughly between the orbits of the planets Mars and Jupiter.
The astronomical unit (symbol: au, ua, or AU) is a unit of length, roughly the distance from Earth to the Sun.
Christian Heinrich Friedrich Peters (September 19, 1813 – July 18, 1890) was a German–American astronomer, and a pioneer in the study of asteroids.
In Greek mythology, Eurydice (Εὐρυδίκη, Eurydikē) was an oak nymph or one of the daughters of Apollo.
Iron is a chemical element with symbol Fe (from ferrum) and atomic number 26.
Julian day is the continuous count of days since the beginning of the Julian Period and is used primarily by astronomers.
In astronomy, a Julian year (symbol: a) is a unit of measurement of time defined as exactly 365.25 days of SI seconds each.
M-type asteroids are asteroids of partially known composition; they are moderately bright (albedo 0.1–0.2).
Nickel is a chemical element with symbol Ni and atomic number 28.
Orpheus (Ὀρφεύς, classical pronunciation) is a legendary musician, poet, and prophet in ancient Greek religion and myth.