Talk:Johannes Phocylides Holwarda

	Biography portal 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 articles
	This article is supported by the science and academia work group.

Astronomy Low‑importance

	Astronomy portal This article is within the scope of WikiProject Astronomy, which collaborates on articles related to Astronomy on Wikipedia.AstronomyWikipedia:WikiProject AstronomyTemplate:WikiProject AstronomyAstronomy articles
Low	This article has been rated as Low-importance on the project's importance scale.

Netherlands

This article falls within the scope of WikiProject Netherlands, an attempt to create, expand, and improve articles related to the Netherlands on Wikipedia. If you would like to participate, visit the project page where you can join the project or contribute to the discussion.NetherlandsWikipedia:WikiProject NetherlandsTemplate:WikiProject NetherlandsNetherlands articles

Philosophy: Philosophers / Modern Low‑importance

This article is within the scope of WikiProject Philosophy, a collaborative effort to improve the coverage of content related to philosophy on Wikipedia. If you would like to support the project, please visit the project page, where you can get more details on how you can help, and where you can join the general discussion about philosophy content on Wikipedia.PhilosophyWikipedia:WikiProject PhilosophyTemplate:WikiProject PhilosophyPhilosophy articles

Low

This article has been rated as Low-importance on the project's importance scale.

Associated task forces:
/
	Philosophers
	Modern philosophy

Survey of?

Latest comment: 16 years ago1 comment1 person in discussion

He is known as the discoverer of Mira's pulsations. The next discovered Mira variable was χ Cygni, discovered by Gottfried Kirch 1686. I don't think he actually surveyed Mira's. He discovered "the" Stella Mira Ceti, AKA Mira, today known also as Omicron Ceti. Said: Rursus (☻) 18:15, 16 October 2008 (UTC)Reply

Philosophy importance?

Latest comment: 16 years ago1 comment1 person in discussion

Well yes, he's somewhat important. Tycho Brahe began debunking the idea of an eternal unchangeable heavenly sphere, and Holwarda debunked the idea of constantly bright stars, steps on the way from a geocentric cosmos with perfect planetary orbits towards a dynamic cosmos where there is no center (essentially a Demokritian/Brunoic cosmos), but there were many more steps for science to take, before essentially leaving the heliocentric system (except as regards to the planetary system).

As regards to science: he is the discoverer of star variability. Said: Rursus (☻) 18:26, 16 October 2008 (UTC)Reply

External links modified

Latest comment: 6 years ago1 comment1 person in discussion

Hello fellow Wikipedians,

I have just modified one external link on Johannes Phocylides Holwarda. Please take a moment to review my edit. If you have any questions, or need the bot to ignore the links, or the page altogether, please visit this simple FaQ for additional information. I made the following changes:

Added archive https://archive.is/20071024210620/http://subdomainname.yurisnight.net/~spider/spider/Vars/mira.html to http://subdomainname.yurisnight.net/~spider/spider/Vars/mira.html

When you have finished reviewing my changes, you may follow the instructions on the template below to fix any issues with the URLs.

This message was posted before February 2018. After February 2018, "External links modified" talk page sections are no longer generated or monitored by InternetArchiveBot. No special action is required regarding these talk page notices, other than regular verification using the archive tool instructions below. Editors have permission to delete these "External links modified" talk page sections if they want to de-clutter talk pages, but see the RfC before doing mass systematic removals. This message is updated dynamically through the template {{source check}} (last update: 5 June 2024).

If you have discovered URLs which were erroneously considered dead by the bot, you can report them with this tool.
If you found an error with any archives or the URLs themselves, you can fix them with this tool.

Cheers.—InternetArchiveBot (Report bug) 01:01, 27 November 2017 (UTC)Reply

Add topic