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{{Short description|Swiss astronomer}}
{| align="right" style="border:1px solid #CCC; margin-left:15px;" cellpadding="5"
{| class="wikitable floatright" style=""
|+ '''[[Asteroid]]s discovered: 1'''
|+ [[Asteroid]]s discovered: 1&thinsp;<ref name="MPC-Discoverers" />
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| [[428 Monachia]] || [[November 18]], [[1897]]
|-
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| [[428 Monachia]] || November 18, 1897 || {{MPC|428}}
|}
|}
[[File:Jena Nordfriedhof Villiger.jpg|thumb|Grave in Jena]]
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'''Walther Augustin Villiger''' ([[1872]] &ndash; [[1938]] [http://cometography.com/biographies/bio_v.html]; his first name is sometimes spelt '''Walter''') was a [[Germany|German]] [[astronomer]] and Carl Zeiss engineer who discovered an [[asteroid]] while working in [[Munich]], [[Germany]]. He also participated in th observation of [[comet]]s. His astronomical period of activity extended from [[1896]] to [[1907]] [http://adsabs.harvard.edu/cgi-bin/nph-abs_connect?db_key=AST&sim_query=YES&aut_xct=NO&aut_logic=OR&obj_logic=OR&author=Villiger%2C+W&object=&start_mon=&start_year=&end_mon=&end_year=&ttl_logic=OR&title=&txt_logic=OR&text=&nr_to_return=100&start_nr=1&jou_pick=ALL&ref_stems=&data_and=ALL&group_and=ALL&start_entry_day=&start_entry_mon=&start_entry_year=&end_entry_day=&end_entry_mon=&end_entry_year=&min_score=&sort=SCORE&data_type=SHORT&aut_syn=YES&ttl_syn=YES&txt_syn=YES&aut_wt=1.0&obj_wt=1.0&ttl_wt=0.3&txt_wt=3.0&aut_wgt=YES&obj_wgt=YES&ttl_wgt=YES&txt_wgt=YES&ttl_sco=YES&txt_sco=YES&version=1]. In [[1924]], less than a year after the first [[planetarium]] had been opened at the [[Deutches Museum]] in Munich, Walther Villiger suggested a new, improved Zeiss planetarium projector. This new Zeiss, known as the ''Mark II'', was designed for much larger theatres than the previous model &mdash;up to 23 metres [http://www.griffithobs.org/IPSFox.html].
'''Walter Augustin Villiger''' (1872–1938;<ref>{{cite web | url = http://cometography.com/biographies/bio_v.html | title = Who's Who in Comet History: V | work = cometography.com | author = Gary W. Kronk }}</ref> his first name is sometimes spelt '''Walther''') was a [[Switzerland|Swiss]] [[astronomer]] and Carl Zeiss engineer who discovered an [[asteroid]] while working in [[Munich]], [[Germany]]. He also participated in the observation of [[comet]]s.


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His astronomical period of activity extended from 1896 to 1907.<ref>{{cite web | url = http://adsabs.harvard.edu/cgi-bin/nph-abs_connect?db_key=AST&sim_query=YES&aut_xct=NO&aut_logic=OR&obj_logic=OR&author=Villiger%2C+W&object=&start_mon=&start_year=&end_mon=&end_year=&ttl_logic=OR&title=&txt_logic=OR&text=&nr_to_return=100&start_nr=1&jou_pick=ALL&ref_stems=&data_and=ALL&group_and=ALL&start_entry_day=&start_entry_mon=&start_entry_year=&end_entry_day=&end_entry_mon=&end_entry_year=&min_score=&sort=SCORE&data_type=SHORT&aut_syn=YES&ttl_syn=YES&txt_syn=YES&aut_wt=1.0&obj_wt=1.0&ttl_wt=0.3&txt_wt=3.0&aut_wgt=YES&obj_wgt=YES&ttl_wgt=YES&txt_wgt=YES&ttl_sco=YES&txt_sco=YES&version=1 | title = Query Results for "Villiger, W" | work = Astronomy Database }}</ref> In 1924, less than a year after the first [[planetarium]] had been opened at the [[Deutsches Museum]] in Munich, Walther Villiger suggested a new, improved [[zeiss projector|Zeiss]] planetarium projector. This new Zeiss, known as the ''Mark II'', was designed for much larger theatres than the previous model &mdash;up to 23 metres [https://web.archive.org/web/20051028154633/http://griffithobs.org/IPSFox.html].
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[[Category:1872 births|Villiger, Walther]]

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[[Category:1938 deaths|Villiger, Walther]]
Asteroid [[1310 Villigera]] is named after him.<ref name="springer-1310-Villigera" />
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[[Category:German astronomers|Villiger, Walther]]

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[[Category:Lists of asteroids|Villiger, Walther]]
== References ==
[[Category:Asteroid discoverers|Villiger, Walther]]
{{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 = 23 May 2016
|accessdate = 6 June 2016}}</ref>

<ref name="springer-1310-Villigera">{{cite book
|title = Dictionary of Minor Planet Names – (1310) Villigera
|last = Schmadel | first = Lutz D.
|publisher = Springer Berlin Heidelberg
|page = 107
|date = 2007
|isbn = 978-3-540-00238-3
|doi = 10.1007/978-3-540-29925-7_1311 |chapter = (1310) Villigera }}</ref>

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

{{Authority control}}
{{DEFAULTSORT:Villiger, Walther}}
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[[Category:1872 births]]
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[[Category:1938 deaths]]
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[[Category:19th-century Swiss astronomers]]
[[Category:20th-century Swiss astronomers]]
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[[Category:Discoverers of asteroids]]
[[Category:Swiss expatriates in the German Empire]]

Latest revision as of 12:26, 25 September 2023

Asteroids discovered: 1 [1]
428 Monachia November 18, 1897 MPC
Grave in Jena

Walter Augustin Villiger (1872–1938;[2] his first name is sometimes spelt Walther) was a Swiss astronomer and Carl Zeiss engineer who discovered an asteroid while working in Munich, Germany. He also participated in the observation of comets.

His astronomical period of activity extended from 1896 to 1907.[3] In 1924, less than a year after the first planetarium had been opened at the Deutsches Museum in Munich, Walther Villiger suggested a new, improved Zeiss planetarium projector. This new Zeiss, known as the Mark II, was designed for much larger theatres than the previous model —up to 23 metres [1].

Asteroid 1310 Villigera is named after him.[4]

References

[edit]
  1. ^ "Minor Planet Discoverers (by number)". Minor Planet Center. 23 May 2016. Retrieved 6 June 2016.
  2. ^ Gary W. Kronk. "Who's Who in Comet History: V". cometography.com.
  3. ^ "Query Results for "Villiger, W"". Astronomy Database.
  4. ^ Schmadel, Lutz D. (2007). "(1310) Villigera". Dictionary of Minor Planet Names – (1310) Villigera. Springer Berlin Heidelberg. p. 107. doi:10.1007/978-3-540-29925-7_1311. ISBN 978-3-540-00238-3.
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