8510337
Description
| Question | Answer |
| O | Colour: Blue Temperature: 25,000 - 50,000K Absorption Lines: Helium ions and atoms plus weak Hydrogen Balmer |
| B | Colour: Blue Temperature: 11,000 - 25,000K Absorption Lines: Hydrogen Balmer and helium atoms |
| A | Colour: Blue-white Temperature: 7,500K - 11,000K Absorption Lines: Strongest Hydrogen Balmer (in the visible spectrum) and some metal ions |
| F | Colour: White Temperature: 6,000 - 7,500K Absorption Lines: Strong metal ions |
| G | Colour: Yellow-white Temperature: 5,000 - 6,000K Absorption Lines: Metal ions and metal atoms |
| K | Colour: Orange Temperature: 3,500 - 5,000K Absorption Lines: Metal atoms |
| M | Colour: Red Temperature: < 3,500K Absorption Lines: Molecular bands e.g. titanium oxide |
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