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Seasons & Moon Phases

Seasons & Moon Phases. Eclipses, Umbra, Penumbra. Earth’s Orbit. March 21 Vernal Equinox. December 21 Winter Solstice. June 21 Summer Solstice. September 23 Autumnal Equinox. Northern Hemisphere Winter.

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Seasons & Moon Phases

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  1. Seasons & Moon Phases Eclipses, Umbra, Penumbra

  2. Earth’s Orbit March 21 Vernal Equinox December 21 Winter Solstice June 21 Summer Solstice September 23 Autumnal Equinox

  3. Northern Hemisphere Winter • When the pole slants away from the sun, the Northern Hemisphere receives the least sunlight and it is winter.

  4. Summer, Spring, Autumn • Spring begins when the pole starts to slant toward the sun, and autumn begins when the pole starts to slant away again. • When the North Pole slants toward the sun, the Northern Hemisphere receives the most sunlight and it is summer there.

  5. Ecliptic

  6. Analemma

  7. Phases of the Moon • New Moon • Waxing Crescent • First Quarter • Waxing Gibbous • Full Moon • Waning Gibbous • Last Quarter • Waning Crescent • Moon Phase Applet • Moon Phase Calculator

  8. New Moon Waxing Crescent

  9. First Quarter Waxing Gibbous

  10. Full Moon Waning Gibbous

  11. Last Quarter • Waning Crescent

  12. Moon’s Orbit is Tilted

  13. Solar Eclipse

  14. Umbra to Penumbra

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