Dr 15 - possible planetary nebula in the constellation Centaurus
Dies ist das erste, rein remote aufgenommene Bild am Gemsbock Observatory. Für das “remote First Light” habe ich den vermutlich alten planetarischen Nebel Dr 15 gewählt, der erst 2018 von Marcel Drechsler The true nature of the nebula has not yet been clarified (2024) and it is still being listed as a candidate at planetarynebulae.net .
With an exposure time of 20 hours in H-alpha light, I was able to work out some details and filaments of the nebula that I have never seen in any image before. I also exposed 20 hours with the OIII filter, but with the used focal length there was absolutely no recognizable structure in the image.
| Date: | 29.05.-08.06.2024 |
| Optics: | Planewave CDK 14 with Televue 0.8x reducer |
| Aperture: | 350 mm |
| Focal Length: | 2050 mm |
| Camera: | QHY268M |
| Exposure: | R:G:B 12:12:12 x 600 s Ha 120 x 600 s |
| Location: | Gemsbock Observatory, Rooisand Desert Ranch, Namibia |
| Processing: | PixInsight, Photoshop |
| Diameter: | unknown |
| Distance: | unknown |
