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17 September, 19:34

What is the similarities between rigel star and sirius star? explain the similarities ...

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  1. 17 September, 19:55
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    The Hertzsprung-Russel diagram is a chart of the relationship between absolute magnitude and the surface temperature of stars. Rigel is a super giant star that shines blue or blue white with an average surface temperature nearing 20000 degrees Celsius. Sirius is a main sequence star with an average surface temp of over 10000 degrees Celsius. Sirius is similar in appearance to Rigel but is brighter in the night sky from earth.
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