The Dark Horse (Photo Release)

horse_head175The famous HorseHead Nebula in Orion (also known as Barnard 33) as seen from Calar Alto. This unusual shaped nebula was first spotted in 1888 on a photographic plate taken at the Harvard College Observatory. The nebula is located just below Alnitak, the easternmost star of Orion's Belt, lies at a distance of about 1500 light-years from Earth, and is approximately 3.5 light-years wide. The red glow originates from hydrogen gas predominantly behind the nebula, ionized by the nearby bright star Sigma Orionis. The darkness of the Horsehead is caused by tiny...

Read more ...