Butterfly Emerges from Stellar Demise in Planetary Nebula NGC 6302 From Wikipedia: NGC 6302 (also called the Bug Nebula or Butterfly Nebula), is a bipolar planetary nebula in the constellation Scorpius. It is one of the most interesting and complex planetary nebulae observed. The spectrum of NGC 6302 shows its central star is one of the hottest objects in the galaxy, with a surface temperature in excess of 200,000 K, implying that the star from which it formed must have been very large. The central star has never been observed and is surrounded by a particularly dense equatorial disc composed of gas and dust. This dense disc is postulated to have caused the star's outflows to form a bipolar structure (Gurzadyan 1997), similar to an hour-glass. This bipolar structure shows many interesting features seen in planetary nebulae such as ionization walls, knots and sharp edges to the lobes.
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Tag Archives: constellation
Spring Triangle Long Sleeve Shirts
The spring triangle connects the brightest stars of the constellations Bootes, Leo and Virgo.
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Inner Harbor – Baltimore Postcards
The USS Constellation on the Inner Harbor in Baltimore, Maryland.
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Vintage Unicorn Star Constellation Postcard
Unicorn Star Chart Constellation Postcard
This is a quality reproduction of a vintage astronomical chart showing a unicorn, a dog, and printing apparatus forming the constellations. The original hand-colored etching was created by Sidney Hall and was published in 1825. The title is "Monoceros, Canis Minor, and Atelier Typographique." Monoceros is the Greek word for unicorn. The Monoceros Unicorn Constellation is bordered on the west by Orion, on the north by Gemini, on the south by Canis Major and on the east by Hydra.