czsky/en/star/hr815.md

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---
name: RZ Cassiopeiae
constellation: Cas
created_by: 8mag
created_date: 2022-01-21 17:00:00
updated_by: skybber
updated_date: 2022-01-23 10:14:04.469176
---
an interesting occulting variable star. The period of brightness changes is 1.19 days, but the drop in brightness from 6.18mag to 7.72mag lasts only two hours, while brightening then occurs immediately and the star returns to its original magnitude in another two hours.