Editing Joseph Helffrich

{{Short description|German astronomer}}
{| class="wikitable floatright" style="font-size: 0.9em;"
|+ [[Asteroid]]s discovered: 13&thinsp;<ref name="MPC-Discoverers" />
|-
| [[697 Galilea]] || February 14, 1910
|-
| [[698 Ernestina]] || March 5, 1910
|-
| [[699 Hela]] || June 5, 1910
|-
| [[700 Auravictrix]] || June 5, 1910
|-
| [[701 Oriola]] || July 12, 1910
|-
| [[702 Alauda]] || July 16, 1910
|-
| [[706 Hirundo]] || October 9, 1910
|-
| [[708 Raphaela]] || February 3, 1911
|-
| [[709 Fringilla]] || February 3, 1911
|-
| [[713 Luscinia]] || April 18, 1911
|-
| [[714 Ulula]] || May 18, 1911
|-
| [[2056 Nancy]] || October 15, 1909
|-
| [[3861 Lorenz]] || March 30, 1910
|}

'''Joseph Helffrich''' (12 January 1890 in [[Mannheim]], [[Baden]] &ndash; 1971) was a German [[astronomer]].

He did his Ph.D. dissertation in 1913 at the ''[[Landessternwarte Heidelberg-Königstuhl]]'' (Königstuhl Observatory, near Heidelberg) at the [[University of Heidelberg]] [https://web.archive.org/web/20040623072916/http://www.lsw.uni-heidelberg.de/personnel/diss.phtml].

At the time, the observatory at Heidelberg was a center for [[asteroid]] discovery under the direction of [[Max Wolf]], and during his time there Helffrich discovered a number of asteroids.

== References ==
{{reflist
|refs=

<ref name="MPC-Discoverers">{{cite web
  |title      = Minor Planet Discoverers (by number)
  |work       = Minor Planet Center
  |url        = http://www.minorplanetcenter.net/iau/lists/MPDiscsNum.html
  |date       = 4 September 2016
  |accessdate = 7 September 2016}}</ref>

}} <!-- end of reflist -->

{{refbegin}}
:* Helffrich, Joseph: Untersuchungen im Sternhaufen h Persei nach Aufnahmen mit dem Waltz-Reflektor der Heidelberger Sternwarte. Braun, Mannheim 1913, 23 S. (Heidelberg, Naturwiss.-math. Diss. v. 17. Nov. 1913)
:* Schmadel, Lutz D.: ''Dictionary of Minor Planet Names''. 5th ed. Springer, Berlin 2003, {{ISBN|3-540-00238-3}}
{{refend}}

== External links ==
* [[2290 Helffrich|Asteroid 2290 Helffrich]]
* [https://web.archive.org/web/20040623072916/http://www.lsw.uni-heidelberg.de/personnel/diss.phtml List of Dissertations at the Landessternwarte Heidelberg-Königstuhl]

{{Authority control}}

{{DEFAULTSORT:Helffrich, Joseph}}
[[Category:20th-century German astronomers]]
[[Category:Discoverers of asteroids]]
[[Category:1890 births]]
[[Category:1971 deaths]]
[[Category:Heidelberg University alumni]]