Talk:Nadir

Mythology
I believe the words zenith and nadir come originally from ancient mythology (Greek and Mesopothamian). The universe had an egg shape. Zenith was the highest point of heaven; earth was flat in the middle; nadir was the lowest point of the underworld. It would take a lot of research to find the right sources to verify all that. Grushenka (talk) 08:19, 29 June 2021 (UTC)

Medical, Emotional, and other meanings sections
These sections seem out of place on an astronomy subpage. I suggest we move them to separate articles and keep the current one focused on the astronomical meaning. This page also did not show up in the disambiguation. — Preceding unsigned comment added by Triceraranger (talk • contribs) 19:48, 26 September 2018 (UTC)

May 2007
I think a figure would be of great value here...anyone know of one rattling around? --Leila 20:34, 1 May 2007 (UTC)

Text moved from article
I moved the following text here. It first needs some explanation as to its relevance to the English meaning of 'point opposite the zenith', then it can be moved back:
 * Nadir also means 'precious' and 'rare' in arabic and Hebrew. (spelt nadir or nader) -- User:57.73.15.6

BillC 22:06, 29 November 2005 (UTC)

Actually, it's from the phrase "nazir as-samt", that is, "opposite the zenith". While I'm not sure what "nadir" means in 'Arabic, I'm sure that the 2 words are not related (the root of one is nun-dal-rah and the other is nun-zah-rah). The English pronunciation of "nazir" is simply a mistake (like "samt" being pronounced "zenith", or "sifr" being pronounced "zero" etc). Zyxoas (talk to me - I'll listen) 13:44, 9 July 2006 (UTC)


 * This question has again been raised. &mdash; BillC talk 23:48, 20 May 2007 (UTC)

Meaning
Nadir also means rare in Hebrew, not only in Arabic It is written as נדיר. My name is Nadir and I am Israeli, that is why I know it. Please add it. --Idontknow610 18:33, 15 November 2007 (UTC)

Consider adding this to https://en.wikipedia.org/wiki/Nadir_(name) instead of here.

Pronunciation (vowels)
I am hearing this term a lot being used on NASA TV, watching the coverage of STS-116. There, it is pronounced "Nader", as in Ralph Nader. Is this the universal pronunciation of the word (at least, in English)? If so, that is a piece of information that would be useful to include (seeing the word, I would interpret the spelling as "Nah-DEER", particularly given the apparent Arabic origin). On that note, I have added a clarification to the link on "Nader". --RealGrouchy 00:31, 14 December 2006 (UTC)
 * It's a very common term if you ever have studied astrology or navigation by celestial bodies. Ronbo76 07:14, 9 January 2007 (UTC)

Image Request
A request was made at the Graphic Lab for an Image to improve this article: your comments would be welcome. ---Dave the Rave (DTR) talk 09:45, 16 August 2007 (UTC)

Examples of usage
Those seeking example(s) of the term's usage can review audio and/or transcripts of air/ground NASA communications during astronaut EVA (Extra-Vehicular Activity) work, such as to structures on the International Space Station. - Ageekgal (talk) 14:59, 11 February 2008 (UTC)

Nadir as persian name
I believe that the right English spelling for the Persian name is: Nader(نادر), as the pronunciation seems to differ from the Arabic variant which is written the same using Arabic alphabet(نادر ) but pronounced: Nadir.--217.29.87.11 (talk) 18:23, 24 December 2008 (UTC)kasvi

Consider adding this to the following page, not here. https://en.wikipedia.org/wiki/Nadir_(name) — Preceding unsigned comment added by Triceraranger (talk • contribs) 19:42, 26 September 2018 (UTC)

Nadir is a direction, not a point
Nadir refers to a direction, not to a point, as do zenith, horizon, etc. Wulfgang (talk) 16:35, 21 January 2009 (UTC)
 * I've edited the page accordingly, and incorporated the introductory paragraph from zenith to help unify these two related articles. 98.185.216.60 (talk) 23:14, 2 February 2009 (UTC)
 * Nadir refers to a direction at a point. In General Relativity the Nadir at all points is never identical.  In Special Relativity the Nadir of some points is perceived to be identical because of measurement imprecision. Dsoconno (talk) 09:52, 3 May 2023 (UTC)

Clarification of Nadir Satellite Viewing Geometry
My colleagues find the description of the Nadir satellite viewing geometry to be insufficient to properly understand it. I will attempt to address this by rewording the current text in terms of a viewing geometry instead of an angle. I will also attempt to put in a second figure depicting a satellite. The current figure is quite correct, but it is difficult to imagine how it applies to satellites unless you are already familiar with the meaning. Grayob (talk) 20:10, 4 June 2009 (UTC)

Nadir And Nenith
Nadir comes from ottoman empire (old turkish) with the meaning of "down". Zenith comes from roman empire (latin) with the meaning of "up". Nadir and Zenith are 2 directions that they can help people to orient themselves. Attention!!! North Pole and South Pole with Nadir and Zenith are a total differention. Poles are points and N&Z are directions. If you wanna find more about stars (constelations) search on youtube "Astroscope" Good luck! 2A02:2F05:1202:7100:410A:4601:C53B:8A92 (talk) 21:09, 8 January 2023 (UTC)