Asteroid

Asteroid

Asteroids are a class of small Solar System bodies in orbit around the Sun. They have also been called planetoids, especially the larger ones...

s discovered: 13

697 Galilea 697 Galilea 697 Galilea is a minor planet orbiting the Sun. It was named in honour of Galileo Galilei, as it was discovered just after the 300th anniversary of his discovery of the Galilean moons.-External links:*...	February 14, 1910
698 Ernestina 698 Ernestina -External links:*...	March 5, 1910
699 Hela 699 Hela - External links :*...	June 5, 1910
700 Auravictrix	June 5, 1910
701 Oriola 701 Oriola - External links :*...	July 12, 1910
702 Alauda 702 Alauda 702 Alauda is a large binary minor planet.Alauda is 194.73 km in diameter. Since it is a binary system, Rojo and Margot have estimated it to have a mass of 6.06 kg with a density of 1.57 g/cm³.-Satellite:...	July 16, 1910
706 Hirundo 706 Hirundo - External links :*...	October 9, 1910
708 Raphaela 708 Raphaela -External links:*...	February 3, 1911
709 Fringilla 709 Fringilla -External links:*...	February 3, 1911
713 Luscinia 713 Luscinia -External links:*...	April 18, 1911
714 Ulula 714 Ulula - External links :*...	May 18, 1911
2056 Nancy 2056 Nancy 2056 Nancy is a main-belt asteroid discovered on October 15, 1909 by J. Helffrich at Heidelberg.- External links :*...	October 15, 1909
3861 Lorenz 3861 Lorenz 3861 Lorenz is a main-belt asteroid discovered on March 30, 1910 by J. Helffrich at Heidelberg.- External links :*...	March 30, 1910

Joseph Helffrich (* 12 January 1890 in Mannheim

Mannheim

Mannheim is a city in southwestern Germany. With about 315,000 inhabitants, Mannheim is the second-largest city in the Bundesland of Baden-Württemberg, following the capital city of Stuttgart....

, Baden

Baden

Baden is a historical state on the east bank of the Rhine in the southwest of Germany, now the western part of the Baden-Württemberg of Germany....

, † 1971) was a German

Germany

Germany , officially the Federal Republic of Germany , is a federal parliamentary republic in Europe. The country consists of 16 states while the capital and largest city is Berlin. Germany covers an area of 357,021 km2 and has a largely temperate seasonal climate...

 astronomer

Astronomer

An astronomer is a scientist who studies celestial bodies such as planets, stars and galaxies.Historically, astronomy was more concerned with the classification and description of phenomena in the sky, while astrophysics attempted to explain these phenomena and the differences between them using...

.

He did his Ph.D. dissertation in 1913 at the Landessternwarte Heidelberg-Königstuhl

Landessternwarte Heidelberg-Königstuhl

The Heidelberg-Königstuhl State Observatory is an historic astronomical observatory located near the summit of the Königstuhl hill in the city of Heidelberg in Germany...

(Königstuhl Observatory, near Heidelberg) at the University of Heidelberg http://www.lsw.uni-heidelberg.de/personnel/diss.phtml.

At the time, the observatory at Heidelberg was a center for asteroid

Asteroid

Asteroids are a class of small Solar System bodies in orbit around the Sun. They have also been called planetoids, especially the larger ones...

 discovery under the direction of Max Wolf

Max Wolf

Maximilian Franz Joseph Cornelius Wolf was a German astronomer and a pioneer in the field of astrophotography...

, and during his time there Helffrich discovered a number of asteroids.

External links

• Asteroid 2290 Helffrich
  2290 Helffrich
  2290 Helffrich is a main-belt asteroid discovered on February 14, 1932 by Reinmuth, K. at Heidelberg.- External links :*...
  
  
• List of Dissertations at the Landessternwarte Heidelberg-Königstuhl