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The Details
M8 - The Lagoon Nebula in Sagittarius
Astro-Physics 12" Mak-Cass at f/8
Astro-Physics 1600 GTO with absolute encoders
FLI Proline 16803
Tru-Balance 5nm Hydrogen-Alpha
02/05/05 June 2015
Las Campanas Observatory, Chile
2 pane mosaic Ha 2 x 17 x 1200 sec 1x1 bin + Ha 9 x 60 sec 1x1 core
ACP, Maxim DL/CCD, CCDStack, Photoshop CS5
Field of View: 01°17' x 00°50' centered on RA 18h04m27s
DEC -24°17'30". North angle 359.8 °; east 90° CCW from north
IM 8, the Lagoon Nebula, is a giant interstellar gas cloud located 6500 light-years from Earth in the constellation Sagittarius.  Measuring 60 light years across, this bright nebula is a naked eye object as observed from dark-sky locations. 

This image was taken from the Las Campanas Observatory in Chile, where M 8 is positioned nearly overhead as it transits the meridian during its nocturnal trip across Southern winter skies.  Composed as a 2-pane mosaic, the total exposure time for this image was 11 hours 30 minutes.

All data for this mosaic image was acquired by the author and Howard Hedlund of Astro-Physics, Inc., with processing by Dave Jurasevich




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