click here for a 80% resolution image, 2493x1842 (4111KB)
An LRGB image without narrowband data enhancement can be found here.
| Optics | 14" Newton f/3.8 |
| Mount | ASA DDM 85 XL |
| Camera | FLI 8300ML |
| Filters | Baader Ha, OIII, LRGB |
| Date | July/August 2014 |
| Location | Nerpio, Spain |
| SQM-L | typically around 21.9mag |
| Exposure | [Ha],[OIII],LRGB = 22.5, 38.5, 4.3-4.2-4.5-4.8 hours total: 79h |
| FWHM | 2.2 arcseconds |
| Programs used | CCDAutoPilot, MaxIm DL, PixInsight, eXcalibrator, Photoshop CS6 |
| Notes | Images were taken in collaboration with Robert Pölzl. |
This extremly long exposure (almost 80h) shows very faint nebula structures around the famous dumbbell nebula with its known Hα and [O III] halo. Interestingly, the faint structure in south-west direction (lower right) was found in the Hα+[N II] and in the Luminance channel.
A 135% resolution images of the center of M27 is given below:
click here for a 80% resolution image, 2493x1842 (4111KB)
An LRGB image without narrowband data enhancement can be found here.