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spica
A 1st-magnitude star in the constellation Virgo. Spica (α Virginis) is a hot main-sequence star of spectral type B1, effective temperature about 25,000 K (45,000°F), at a distance of 80 parsecs from the Sun (2.59 × 1015 km or 1.61 × 1015 mi).
- 词性: noun
- 行业/领域: 科学
- 类别 普通科学
- Company: McGraw-Hill
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- Francisb
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