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Across
  1. 3. The brightest Star in the night sky
  2. 5. Month in which earth is closest to sun
  3. 6. Cosmic body on First discovery was jokingly called ‘Little Green Men’
  4. 7. This planet has two natural satellites-Phobos and Deimos
Down
  1. 1. region of the Solar System, extending from the orbit of Neptune (at 30 AU) to approximately 50 AU from the Sun consisting mainly of small bodies
  2. 2. Constellation named a hunter in Greek mythology with its brightest stars including Rigel and Betelgeuse
  3. 4. Most luminous object in the universe
  4. 7. Astronomical Body containing Mare Tranquillitatis (Sea of Tranquility)