page_title: U Orionis
section_title: Discovery
hierarchical_section_title: U Orionis / Discovery
caption_attribution_description: English: Variable Star U Orionis
context_page_description: U Orionis is a Mira-type variable star in the constellation Orion. It is a classical long period variable star that has been well observed for over 120 years.
context_section_description: It was discovered on 1885 December 13 by J.E. Gore and initially it was thought to be a nova in the early stages of decline (Gore's Nova and NOVA Ori 1885 as still listed in SIMBAD), but a spectrum taken at Harvard showed features similar to that of Mira. Thus U Orionis became the first long period variable to be identified by a photograph of its spectrum.
caption: U Orionis in the center of the image at approx visual mag. 12 on February 5th 2017
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