| 1. | Note that an inferior planet can never be at quadrature to the reference planet.
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| 2. | Mercury-huggers never would, and share the inferior planet's observation difficulties.
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| 3. | In our case, Venus and Mercury are inferior planets, see Inferior and superior planets.
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| 4. | Maybe someone knows the answer to a simplier version-when is the inferior planet the brightest?
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| 5. | Suppose you have in inferior planet like Venus.
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| 6. | When an inferior planet is visible before sunrise, it is near its "'greatest western elongation " '.
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| 7. | When an inferior planet is visible after sunset, it is near its "'greatest eastern elongation " '.
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| 8. | The inferior planet mechanism includes the sun ( treated as a planet in this context ), Mercury, and Venus.
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| 9. | The inferior planets were always observed to be near the sun, appearing only shortly before sunrise or shortly after sunset.
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| 10. | By the time " The Descendant " was in print, Glasgow had finished " Phases of an Inferior Planet ".
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