Talk:Cerro Murphy Observatory

The article should be revised, or alternatively, split into two articles.

The observatory currently located on top of what is known as Cerro Murphy was established in 2005. However, the Observatorio Cerro Armazones was founded ten years earlier, in 1995, by Professor Luis Barrera of the Universidad Católica del Norte, Chile (proof: https://articles.adsabs.harvard.edu/pdf/2002ASPC..256..285B). This observatory was not situated at the summit of Cerro Murphy but rather on the saddle between Cerro Murphy and Cerro Armazones, utilizing part of the slope leading up to the top of Cerro Armazones. (Please note that earlier versions of this Wikipedia article acknowledged this fact.)

The Observatorio Cerro Armazones, also known as OCA, was closed in 2012, when the land it occupied was donated by the Chilean Government to ESO for the construction of the ELT. Up to that point, the German observatory located on top of Cerro Murphy was referred to simply as the University Bochum Observatory or Universitätssternwarte Bochum (proof: https://archive.ph/3blG3, https://archive.ph/wip/Awo2i).

It is possible that after 2012 some individuals began referring to the Cerro Murphy observatory as Observatorio Cerro Armazones, but there is no clear record of this shift. For instance, a 2015 press release regarding an image captured at this observatory still referred to it as Ruhr University Bochum’s observatory (source: https://www.cnet.com/science/explore-the-milky-way-at-46-billion-pixels).

In contrast, when OCA is cited in scientific literature, it generally refers to the facility established in 1995. For example, this article published in Nature in 2006: https://www.researchgate.net/publication/7375192_Charon's_radius_and_atmospheric_constraints_from_observations_of_a_stellar_occultation.

Given all this, two interpretations are possible:

1. The Cerro Murphy Observatory was likely never called Observatorio Cerro Armazones, whereas the Observatorio Cerro Armazones (OCA) did exist and deserves its own separate article.
2. Alternatively, the name Observatorio Cerro Armazones might now refer to a more complex history encompassing both the observatory originally created by Universidad Católica del Norte in 1995, which used that name, and the University Bochum Observatory, which occupies a nearby but distinct location.

In the latter case, it should be explicitly acknowledged that the site was originally established in 1995 through the initiative of Professor Luis Barrera, and that the Observatorio Cerro Armazones was closed in 2012. Meanwhile, it was the University Bochum Observatory, not OCA, that was transferred to the Nicolaus Copernicus Astronomical Center of the Polish Academy of Sciences in 2020. Eundas (talk) 04:19, 5 August 2025 (UTC)