Subject: Star Magnitude: why was Sirius not used for #1?
Posted by Patrick McDermott
Grade level: K-3
School: Onna Elementary
City: Onna State/Province: Okinawa
Country: Japan
Area of science: Astronomy
Message:
When the original Greeks set up the star magnitude system, couldn't they
see Sirius or wasn't it the brightest star at that time?
Re: Star Magnitude: why was Sirius not used for #1?
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