Image 34 of 258
NGC 6572, the Turquoise Nebula in Ophiuchus
NGC 6572 Turquoise Planetary in Ophiuchus (APO120 R5).jpg
This is the small, bright planetary nebula, NGC 6572 in Ophiuchus, sometimes called the Turquoise Nebula. The nebula is listed as being magnitude 8, so bright. However, the nebula measures 0.3 arc minutes across or just 18 arc seconds, but more like 11 arc seconds visually. So it is small (even when shot with this focal length of 840mm) but vividly coloured. It is planetaries like this that give them their name, as they resemble the tiny disks of Uranus or Neptune, not because they have any association with planet formation.
Technical:
This is a stack of 10 x 6-minute exposures with the Askar APO120 refractor at f/7 with its 1x Flattener, and the stock Canon R5 at ISO 800. Taken from home in Alberta on October 30, 2024 with the field getting into the southwest sky, so not ideally placed. Autoguided with the MGEN3 guider.
Technical:
This is a stack of 10 x 6-minute exposures with the Askar APO120 refractor at f/7 with its 1x Flattener, and the stock Canon R5 at ISO 800. Taken from home in Alberta on October 30, 2024 with the field getting into the southwest sky, so not ideally placed. Autoguided with the MGEN3 guider.
- Copyright
- © Alan Dyer/AmazingSky.com
- Image Size
- 8192x5464 / 19.1MB
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