czsky/en/star/hr4163.md

9 lines
580 B
Markdown
Raw Blame History

This file contains ambiguous Unicode characters

This file contains Unicode characters that might be confused with other characters. If you think that this is intentional, you can safely ignore this warning. Use the Escape button to reveal them.

---
name: U Hya
constellation: Hya
created_by: 8mag
created_date: 2022-01-21 17:00:00
updated_by: skybber
updated_date: 2022-02-06 11:42:20.781557
---
one of the brightest and most unusual carbon stars, whose red colour can be seen even in the smallest binocular. This is due to the abundance of carbon molecules in its atmosphere that absorb blue light. U Hya is observed 4 degrees northwest of ν Hydra and is one of the irregular variable stars whose magnitude varies with some regularity from 4.7mag to 6.2mag over a period of about 450 days. It is about 680 light years away.