533 B
533 B
| name | constellation | created_by | created_date | updated_by | updated_date |
|---|---|---|---|---|---|
| Achird (η Cassiopeiae) | Cas | editor.cs | 2023-11-07 09:39:35.706374 | editor.cs | 2023-11-07 09:39:35.706378 |
well-known binary star, discovered in 1779 by William Herschel. The yellow, golden star (3.7mag) has a separation of 13" (with the separation changing from 5" to 16" over the period) and is accompanied by a companion of brightness 7.4mag with a red, purplish tint, which orbits it every 526 years. The binary star can be resolved in a 6 cm telescope.