Nemolus

Lion Gate Bridge & West Vancouver Stanley Park, Downtown Vancouver Gas Town, Downtown Vancouver Graville Bridge, Downtown Vancouver

The Great Orion Nebula (aka M42 or Messier 42) is one of the most famous nebulae. It is to us the closest star forming region diffused with atomic hydrogen gas. Adding to its fame, it is also the brightest nebula viewed on the Earth, even visible to the naked eyes in a clear night sky. This picture is taken with Pentax 67 165mm lens at f/4, SBIG STL-11K camera with hydrogen-α filters that adds the pervasive red colour, reflecting the long wavelengths of the emission lights due to electron-atom recombination during the star forming process. Credits: Tony Hallas Source: http://antwrp.gsfc.nasa.gov/apod/ap070125.html

"The CTIO 4-meter Blanco telescope, silhouetted against the Magellanic Clouds (at left) and the Milky Way, as seen from Cerro Tololo in Chile. This is not a composite image. It was taken by Roger Smith using a 2048x2048 scientific CCD which has much higher sensitivity than photographic film, revealing greater detail in exposures short enough (20 seconds) to eliminate star trails. The CCD, normally used on the telescope pictured, was temporarily mated to a Zeiss Distagon 40 mm f/4 lens by a "camera body" made in house. The only source of illumination is starlight." Credits: Roger Smith, AURA, NOAO, NSF Source: http://antwrp.gsfc.nasa.gov/apod/ap040313.html