| 1. | There was also S-1 which was intended to image the Zodiacal light.
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| 2. | Through the spacecraft window he viewed the zodiacal light and night airglow layer.
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| 3. | For orbital telescopes, the background sky brightness is set by the zodiacal light.
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| 4. | Other non-lunar targets were the zodiacal light and the corona of the Sun.
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| 5. | He also traveled with Birkeland to the Sudan to observe the zodiacal light.
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| 6. | Asteroid particles that produce the visible zodiacal light average about 40 ?m in radius.
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| 7. | The dust band that causes the zodiacal light is uniform across the whole ecliptic.
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| 8. | In the Solar System, interplanetary dust causes the zodiacal light.
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| 9. | This compromise proved to be appropriate for the dim and diffuse zodiacal light and airglow.
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| 10. | The Zodiacal Light Observatory currently consists of two instruments.
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