9 lines
958 B
Markdown
9 lines
958 B
Markdown
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name: R Scuti
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constellation: Sct
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created_by: 8mag
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created_date: 2022-01-21 17:00:00
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updated_by: skybber
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updated_date: 2022-02-11 15:45:13.352809
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Dark yellow giant, semi-regular variable star of the RV Tauri type, one degree south of β Scuti (4.2 mm). Its brightness varies from 4.9mag to 8.2mag over a period of five months - a main period of 140 days. The cause of the deep minimum may be carbon particles formed in the star's atmosphere. It is within range of the binocular, being the brightest variable star of the RV Tauri type: it appears to oscillate in at least two overlapping periods, and at its maximum it is at least 8,000 times more luminous than the Sun. It often changes brightness between 5-6mag, but after four or five such cycles it drops to 8th magnitude. It is about 2,500 light years away. Similar stars have been found not only in parts of the Milky Way, but also in globular clusters, whether in the very centre of the Galaxy. |