M25 - Open Cluster in Sagittarius
| M25 was discovered by de Cheseaux in 1745 and calaloged by Charles Messier in 1764. It lies 2,000 light years away and contains a couple of type M and type G giant stars. | |
| Telescope: |
Sky-Watcher 100ED refractor |
| Camera: | Modified Canon T4i (650D); ISO 800; Raw capture |
| Mount: | Orion Sirius |
| Guiding: | SSAG on 50mm StellarVue finder scope |
| Exposures: | 12 @ 3minutes |
| Processing: | Images were focused using Live View. They were converted to tiff files in Canon Digital Photo Professional before being aligned and combined in ImagesPlus. The composite was adjusted in Photoshop. Noise was reduced using Topaz DeNoise. |
| Note: | Taken at Northwoods Starfest (Beaver Creek Reserve) on 8/15/15. |
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