czsky/en/star/V_Hya.md

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436 B
Markdown

---
name: V Hya
constellation: Hya
created_by: 8mag
created_date: 2022-01-21 17:00:00
updated_by: skybber
updated_date: 2022-02-06 11:45:17.219413
---
a rare example of a carbon star. It's a low-temperature red giant that produces carbon. The star is very red, so it can't be mistaken for any other star. But it has one catch: it changes its brightness irregularly between 6th and 12th mag in two main periods - 18 months and 18 years.