254 Augusta is a main-belt asteroid, discovered on 31 March 1886 by astronomer Johann Palisa at Vienna Observatory, Austria. The stony S-type asteroid measures about 12 kilometers in diameter. It is the first-numbered member of the Augusta family, after which the small Asteroid family and subgroup of the main-belt has been named. Augusta was named after the German–Austrian writer Auguste von Littrow (1819–1890), widow of astronomer Carl Ludwig von Littrow, who was a former director of the Vienna Observatory.
522 Helga, provisional designation 1904 NC is a large main belt asteroid. It was discovered in 1904 by Max Wolf in Heidelberg. Helga is notable for being the first such object to be shown to be in a stable but chaotic orbit in resonance with Jupiter, its Lyapunov time being relatively short, at 6,900 yr. Despite this, its orbit appears to be stable, as the eccentricity and precession rates are such that it avoids close encounters with Jupiter. It forms part of the Cybele asteroid group.
524 Fidelio is a large minor planet with a diameter of 71 km, orbiting the Sun near the center of the main asteroid belt. Fidelio contains both metals and carbon. Concerning its name, the Catalogue of Minor Planet Names and Discovery Circumstances notes, "This is the name of Leonora when disguised as a man in the opera Fidelio by the German composer Ludwig van Beethoven. The name dates from a period when Max Wolf assigned the names of female operatic characters to asteroids he had newly discovered.
527 Euryanthe is a minor planet orbiting the Sun. It was discovered in 1904 by Max Wolf and named after the heroine of the opera Euryanthe by the German composer Carl Maria von Weber.
529 Preziosa is a minor planet orbiting the Sun that was discovered by German astronomer Max Wolf on 20 March 1904 from Heidelberg.
530 Turandot is a minor planet orbiting the Sun that was discovered by German astronomer Max Wolf on 11 April 1904 and named for the title character in a play by Carlo Gozzi that was to become best known as an opera Turandot by Puccini.
539 Pamina is a minor planet orbiting the Sun in the main belt. It is named for the heroine of Mozart's opera, The Magic Flute. This asteroid was discovered by M. Wolf in 1904 at the Heidelberg observatory in Germany. It is orbiting at a distance of 2.74 AU from the Sun, with an orbital eccentricity (ovalness) of 0.212 and a period of 4.53 yr. The orbital plane is inclined at an angle of 6.8° to the ecliptic.
541 Deborah is a minor planet orbiting the Sun. It was discovered by Max Wolf on August 4, 1904. The semi-major axis of the orbit lies just inside the 5/2 Kirkwood gap, located at 2.824 AU. It was named after the biblical character Deborah.
549 Jessonda is a minor planet orbiting the Sun. According to the Catalogue of Minor Planet Names and Discovery Circumstances, it is "named presumably after the character in the opera of the same name by the German composer, conductor and violinist Ludwig Spohr (1784-1859), one of the leading composers in the early romantic period.'
550 Senta is a minor planet orbiting the Sun that was discovered by German astronomer Max Wolf on 16 November 1904, from Heidelberg.
551 Ortrud is a minor planet orbiting the Sun. It is located in the Main Belt. In light of the practice of the discover c. 1904 to name his asteroids after female characters in opera, it is likely that Ortrud is named after a character in Richard Wagner's opera Lohengrin.
558 Carmen is a minor planet orbiting the Sun. As with a number of asteroids discovered by Max Wolf, it is named after a female character in opera, in this case the title character of Bizet's Carmen. This is classified as an M-type asteroid that spans a girth of approximately 59 km. The near infrared spectrum of this object is described as featureless. Some evidence for iron-poor orthopyroxenes on the surface has been reported.
562 Salome is a minor planet orbiting the Sun that was discovered by German astronomer Max Wolf on 3 April 1905 from Heidelberg. It is named after Salome, the daughter of Herodias who is referenced in the New Testament.
642 Clara is a minor planet orbiting the Sun. Discovered by Max Wolf in 1907, it is named after one of the housekeepers in Wolf's household.
652 Jubilatrix is a minor planet, specifically an asteroid orbiting in the asteroid belt. It was discovered on 4 November 1907 by Austrian astronomer Johann Palisa, and was named in honor of the 60th anniversary of the reign of Franz Joseph. The asteroid is orbiting at a distance of 2.55 AU with a period of 4.08 yr and an eccentricity of 0.127. It is a member of the Maria dynamic family. Photometric observations provide a rotation period of 2.6627±0.0001 h with a brightness variation of 0.27±0.03 in magnitude.
693 Zerbinetta is a minor planet orbiting the Sun. It was discovered on 21 September 1909 by August Kopff in Heidelberg and named after a character in Richard Strauss' opera Ariadne auf Naxos.
798 Ruth is a minor planet orbiting the Sun that was discovered by the German astronomer Max Wolf on 21 November 1914. It may have been named after the biblical character Ruth. This main belt asteroid has an orbital period of 5.23 years and is orbiting at a distance of 3.0 AU from the Sun with an eccentricity (ovalness) of 0.036. The orbital plane is tilted by 9.2° from the plane of the ecliptic.
865 Zubaida is an elongated, stony background asteroid from the inner regions of the asteroid belt. It was discovered on 15 February 1917, by astronomer Max Wolf at the Heidelberg Observatory in southwest Germany, and given the provisional designations A917 CH and 1917 BO. The uncommon L-type asteroid has a rotation period of 11.4 hours and measures approximately 17 kilometers in diameter. It was named after Zobeide, a character in the opera Abu Hassan by Carl Maria von Weber (1786–1826).
866 Fatme is a large background asteroid, approximately 86 kilometers in diameter, located in the outer region of the asteroid belt. It was discovered by German astronomer Max Wolf at the Heidelberg-Königstuhl State Observatory on 25 February 1917. The X-type asteroid has a short rotation period of 5.8 hours. It was named after "Fatme", a character in the opera Abu Hassan by Carl Maria von Weber (1786–1826).
890 Waltraut is an Eoan asteroid from the outer region of the asteroid belt that was discovered by German astronomer Max Wolf on 11 March 1918. It was named for a character in Richard Wagner's opera, Götterdämmerung.
