"Pointy Pleiades"
| Object | "Pointy Pleiades" (M45), Open Star Cluster, in Taurus | |
| Telescope (Photo) | Televue 85 refractor w/0.8 focal reducer (f/5.6) | |
| Telescope (Guiding) | Meade LX200GPS 12" SCT @ f/6.3 | |
| Camera (Photo) | Canon 20Da DSLR | |
| Camera (Guiding) | Meade DSI Pro II w/PHD Guiding | |
| Exposure Detail | Median combination of 9 images at 120 seconds each, ISO1600; RAW file conversion, full calibration (bias, flat, dark), and initial image processing using ImagesPlus 2.82; final image processing using Photoshop CS3 | |
| Location |
Private Property at
Chiefland Astronomy Village, Florida (N29.406, W82.860) |
|
| Date | 11/09/07 | |
| Comments | This picture was created using a 3-hole aperture mask over the objective lens. The mask holes were triangular and were rotated at 30-degree angles from one another, which caused 18 evenly-spaced diffraction spikes to radiate from each bright star's core. |