Antilhue - Chile

Sagittarius Triplet
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Image Data

Designation Lagoon Nebula, M 8  (top)  -  Trifid Nebula, M 20 (left)  -  IC 4685 group (lower right)  -  M 21 (lower left)   -   NGC 6544  (extreme right)
Object type Combination emission and reflection nebulae  -  Open and globular clusters
Coordinates 18 h 06 min   -23 35'   (Sgr) 
Description Each one of these three nebulae is a spectacular object in its own right and together they make up one of the nicest areas in the night sky.  The open cluster Messier 21 sparkles below red-blue M 20, while globular cluster NGC 5644 seems to be embedded in the Sagittarius star cloud on the right.

Click on the above image for higher resolution (2004 x 1336 pixels).  There are also close-ups of M 8, M 20 and IC 4685

Exposure LRGB 60:40:40:40 min @ -25C
Camera SBIG STL-11000 with Astronomik Type II filter set, selfguided
Optics Astro-Physics Traveler AP105EDF f/5.9 with field flattener, prime focus
Mount Astro-Physics AP900GTO
Software MaxIm DL/CCD, Sigma Pre Beta 11, Registar, Adobe Photoshop CS
Location - Date - Time San Esteban (Chile) - 11Sep2004 - 01:30 UTC 
Conditions Transparency 5,  Seeing 5, Temperature  + 7 C