Facts about Veil Nebula

1. 07

   Radiative cooling in the Veil Nebula's shock fronts causes the remnant to radiate energy across infrared wavelengths, gradually dimming over millennia since its explosion.

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2. 06

   In 1992, the Hubble Space Telescope captured detailed imagery revealing that the Veil Nebula's oxygen emission lines at 500 nanometers create distinct blue coloration in its delicate filamentary structure.

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3. 05

   Located in the constellation Cygnus, the Veil Nebula's western section is catalogued as NGC 6960 while its eastern portions comprise NGC 6992 and NGC 6995.

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4. 04

   Observations with the Hubble Space Telescope reveal that shock waves within the Veil Nebula are still expanding at velocities exceeding 1000 kilometers per second.

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5. 03

   Between 1054 and 1572, a massive stellar explosion created the Veil Nebula, with the supernova likely visible to naked-eye observers during the early medieval period.

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6. 02

   The Veil Nebula's filaments glow primarily from hydrogen-alpha emission at 656 nanometers wavelength, making it ideal for narrowband photography filters.

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7. 01

   Approximately 7000 light-years away, the Veil Nebula supernova remnant spans roughly 110 light-years across in Earth's sky.

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