M20 and M21: Trifid Nebula and Open Cluster in Sagittarius
M21 is the bright cluster (an open cluster) of stars in the upper left corner of this image. Information about these objects can be found on the SEDS website.
Click on the image for a larger version (1280 x 1824, 814kb). A cropped version of this photo is here.
| Photograph Information | |
|---|---|
| Date | 05.24.2006 |
| Location | Flint Hills, KS |
| Telescope | AP130 @ f6 |
| Camera | Canon 350D, Hutech modified type I |
| Exposure | Stack of 18, 5 minute exposures at ISO800 |
| Notes | 70°F, 49%rh, excellent transparancy Initial RAW conversion, registration and stacking in IRIS. Additional adjustments in Photoshop CS2 Noise reduction in PixInsight LE 1.02 Reprocessed 09.03.2006 |
