The Horsehead Nebula Like You’ve Never Seen It Before


New Hubble infrared image of the Horsehead nebula region. Click for a larger version.

Holy Horsehead, Batman! You’ve probably seen photos of the famous Horsehead nebula in Orion many times before, but NOTHING like this!

Astronomers have used NASA’s Hubble Space Telescope to photograph the iconic Horsehead Nebula in a new, infrared light to mark the 23rd anniversary of the famous observatory’s launch aboard the space shuttle Discovery on April 24, 1990.

Looking like an apparition rising from whitecaps of interstellar foam, the iconic Horsehead Nebula has graced astronomy books ever since its discovery more than a century ago. The nebula is a favorite target for amateur and professional astronomers. It is shadowy in optical light. It appears transparent and ethereal when seen at infrared wavelengths. The rich tapestry of the Horsehead Nebula pops out against the backdrop of Milky Way stars and distant galaxies that easily are visible in infrared light.

The nebula is part of the Orion Molecular Cloud, located about 1,500 light-years away in the constellation Orion. It is one of the nearest and most easily-photographed regions in which massive stars are being formed.

In this Hubble image, the backlit wisps along the Horsehead’s upper ridge are being illuminated by Sigma Orionis, a young five-star system just out of view. Along the nebula’s top ridge, two fledgling stars peek out from their now-exposed nurseries.

Scientists know a harsh ultraviolet glare from one of these bright stars is slowly evaporating the nebula. Gas clouds surrounding the Horsehead already have dissipated, but the tip of the jutting pillar contains a slightly higher density of hydrogen and helium, laced with dust. This casts a shadow that protects material behind it from being stripped away by intense stellar radiation evaporating the hydrogen cloud, and a pillar structure forms.

Credit:NASA, ESA, and the Hubble Heritage Team (STScI/AURA)

Source: NASA

The Horsehead nebula imaged in optical wavelengths by the Canada-France-Hawaii Telescope in Hawaii (Jean-Charles Cuillandre [CFHT], Hawaiian Starlight, CFHT)

The Horsehead nebula imaged in optical wavelengths by the Canada-France-Hawaii Telescope in Hawaii (Jean-Charles Cuillandre [CFHT], Hawaiian Starlight, CFHT)


About Jason Major

Jason is a Rhode Island-based graphic designer, photographer, nature lover, space exploration fanatic, and coffee addict. In no particular order.

Posted on April 19, 2013, in Deep Space Objects and tagged , , , , , , , . Bookmark the permalink. 2 Comments.

  1. Go Hubble! Twenty plus years and still has the ability to amaze.


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