Facts about Hydra Constellation

1. 07

   Located within Hydra Constellation, the variable star R Hydrae fluctuates between magnitude 3.5 and 10.9 over a 389-day cycle, making it one of the brightest Mira-type variables visible from Earth.

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2. 06

   Hydra Constellation contains NGC 3242, a planetary nebula called the Ghost of Jupiter, which exhibits a distinctive blue-green color from ionized oxygen and nitrogen gases.

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3. 05

   Ancient Greek mythology depicted Hydra as the multi-headed serpent slain by Heracles, inspiring the constellation's name and shape spanning much of the southern celestial hemisphere.

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4. 04

   M48, an open star cluster located within Hydra Constellation, contains approximately 80 stars and shines at magnitude 5.8, making it visible to the naked eye under dark skies.

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5. 03

   In 1662, Johannes Hevelius designated Hydra Constellation as one of seven new constellations in his star catalog, expanding the known celestial regions.

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6. 02

   Alphard, brightest star in Hydra Constellation, lies approximately 177 light-years from Earth and shines with an orange K-type spectral classification.

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7. 01

   The largest constellation in Earth's night sky, Hydra spans 1303 square degrees and contains the bright star Alphard, also called the Heart of the Hydra.

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