This article is within the scope of WikiProject Biography, a collaborative effort to create, develop and organize Wikipedia's articles about people. All interested editors are invited to join the project and contribute to the discussion. For instructions on how to use this banner, please refer to the documentation.BiographyWikipedia:WikiProject BiographyTemplate:WikiProject Biographybiography

France

	France portal This article is within the scope of WikiProject France, a collaborative effort to improve the coverage of France on Wikipedia. If you would like to participate, please visit the project page, where you can join the discussion and see a list of open tasks.FranceWikipedia:WikiProject FranceTemplate:WikiProject FranceFrance
???	This article has not yet received a rating on the project's importance scale.

Do we have the right man?

According to A. Baranne and F. Launay, Cassegrain : un célèbre inconnu de l'astronomie instrumentale / Cassegrain: a famous unknown of instrumental astronomy, Journal of Optics, 1997, vol. 28, no. 4, pp. 158-172(15) http://www.ingenta.com/isis/searching/Expand/ingenta?pub=infobike://iop/jopt/1997/00000028/00000004/art00004 the Cassegrain in question would be Laurent, born in the region of Chartres around 1629, died at Chaudon (Eure-et-Loir) on August 31, 1693.

The Britannica (15th edition, 1974) only lists "Cassegrain, N.". (Which doesn't match Guillaume either).

User:Cody666 introduced this tit-bit of (mis)information, but he seems to be no longer extant.

Urhixidur 03:06, 2004 Sep 26 (UTC)

Hmm, you have a point! Some quick google searches fail to resolve the issue. This page (http://http://www.cartage.org.lb/en/themes/Biographies/MainBiographies/C/Cassegrain/1.html) claims Cassegrain's first name is not conclusively known. This page on the other hand ( http://www.centurytel.net/lphilpot/optics.html) is one of many claiming Guillame as inventor. Your Journal of Optics source looks fairly conclusive, however. I personally think we should go with that. Perhaps a sentence pointing out the mysterious nature of this man, and a link to the paper (or at least a full reference) would be helpful to reverse the trend of misinformation!

Ire and curses 04:48, 28 Sep 2004 (UTC)

It seems we have two items here, the person the the telescope design. Can we split them please? There should be a disabiguation page rather than a redirect.

Thanks!

Jeff Albro

I agree that 'Cassegrain' and 'Cassegrain telescope' should be split into seperate pages. However, I am not sure that there is any need for a disambiguation page here. A search for Cassegrain should return the person, and if the telescope was what was wanted, then it is easy to click on a link from the Cassegrain biography. A search for 'Cassegrain telescope' will also return the correct page.

Wikipedia disambiguation guidelines say - "Do not disambiguate, or add a link to a disambiguation page, if there is no risk of confusion" - I believe the two articles are sufficiently related that there is no risk of confusion.

I won't implement any changes until another user expresses support for this view (I'm new here, and may not be interpreting this correctly).

Ire and curses 20:13, 30 Sep 2004 (UTC)

I just split the part on the person and the telescope into two separate articles, and also made Cassegrain a disambiguation page. andy 1 July 2005 19:38 (UTC)

==

Cassegrain crater is listed as being named after Giovanni Cassegrain. I wanted to confirm that this actually correct. --Polylerus 19:44, 7 February 2006 (UTC)[reply]

WikiProject class rating

This article was automatically assessed because at least one article was rated and this bot brought all the other ratings up to at least that level. BetacommandBot 04:37, 27 August 2007 (UTC)[reply]