Discovered by M. F. Wolf Alternative names 1905 PY Aphelion 2.6867 AU (401.92 Gm) Discovered 26 January 1905 Orbits Sun Asteroid group Asteroid belt | Discovery date 26 January 1905 Observation arc 111.25 yr (40634 d) Perihelion 2.1984 AU (328.88 Gm) Absolute magnitude 12.1 Discoverer Max Wolf | |
Discovery site Heidelberg-Königstuhl State Observatory Max Wolf discoveries 528 Rezia, 540 Rosamunde, 509 Iolanda | ||
557 Violetta is a minor planet orbiting the Sun that was discovered by German astronomer Max Wolf on January 26, 1905 in Heidelberg. In light of M. F. Wolf's penchant ca. 1905 for naming asteroids after operatic heroines, it is likely that 557 Violetta is named after the protagonist of Giuseppe Verdi's famous opera La Traviata.
Photometric observations of this asteroid made during 2008 at the Organ Mesa Observatory in Las Cruces, New Mexico gave a light curve with a period of 5.0887 ± 0.0001 hours and a brightness variation of 0.25 ± 0.03 in magnitude.
References
557 Violetta Wikipedia(Text) CC BY-SA