Celestial hemisphere:  Northern  ·  Constellation: Cepheus (Cep)  ·  Contains:  Bow-Tie nebula  ·  NGC 40
NGC40 Bow Tie Nebula, Benjamin Birr
NGC40 Bow Tie Nebula
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NGC40 Bow Tie Nebula

NGC40 Bow Tie Nebula, Benjamin Birr
NGC40 Bow Tie Nebula
Powered byPixInsight

NGC40 Bow Tie Nebula

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Description

NGC 40 (also known as the Bow-Tie Nebula and Caldwell 2) is a planetary nebula discovered by William Herschel on November 25, 1788, and is composed of hot gas around a dying star. The star has ejected its outer layer which has left behind a smaller, hot star with a temperature on the surface of about 50,000 degrees Celsius.=10.5px Radiation from the star causes the shed outer layer to heat to about 10,000 degrees Celsius,[and is about one light-year across.=10.5px About 30,000 years from now, scientists theorize that NGC 40 will fade away, leaving only a white dwarf star approximately the size of Earth. NGC 40 is about 3,500 light years away. Wikipedia

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NGC40 Bow Tie Nebula, Benjamin Birr