Spectroscopic Observations on Beta Persei (Algol) | Shelyak Instruments
Spectroscopic Observations on Beta Persei (Algol) | Shelyak Instruments
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Spectroscopic Observations on Beta Persei (Algol) | Shelyak Instruments
Algol - Wikipedia
Spectroscopic Observations on Beta Persei (Algol) | Shelyak Instruments
Algol (β Persei) | Facts, Information, History & Definition
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Spectroscopic Observations on Beta Persei (Algol) | Shelyak Instruments
