Location / Date:

Tivoli, NAM / 2.Juni 2014

Telescope / Lens:

Starfire 127/1040

Mount:

AP1200

Camera:

Central DS Canon 60Da

Exposure time:

11x900" ISO500 -12C

Total exposure:

Description:

The Trifid nebua is a place where stars are born. The ionization of the main nebula is mainly coming frm the hot star HD 164492 which is of type O7. Inside the nebulae  some heavy  protostars are hidden, visible only in the infrared range of the light. The distance of the Trifid nebula is about 5,200 light years. M20 consists of two nebula areas each of which is stimulated by a different source. M20 is located in the constellation of Sagittarius. The souther part is glowing in the reddish light of the hydrogen alpha emission. The northern part is a bluish reflection nebula. The stimulation is caused by two stars: The light of the supergiant HD 164514, which is located in the blue area of the nebula, is diffused and reflected. This star is not hot enough to create a HII region in his surrounding. The bluish glow is surrounding M20 entirely. This is leading to the assumption that other stars can be involved as well.

Image recording:

Gorden Konieczek

Image processing:

Nico Geisler, Frank Iwaszkiewicz, Gorden Konieczek