California Nebula
Technical information
| Date & time | 2020 December 13th 20:09 ~ 23:36 WET |
| Location | Garafia, La Palma, Spain |
| Optics | Takahashi Epsilon 130D |
| Camera | Nikon D810A |
| Mount | Rainbow Astro RST-135 |
| Tripod | Avalon T-Pod 90 |
| Guider | Lacerta MGEN II ZWO 30/120 guide scope |
| Exposure | 20 x 10 minutes 430 mm, f/3.3, ISO 400 3 hours 20 minutes total |
| Processing | DeepSkyStacker: calibrate, align, stack Adobe Photoshop CC: subtract skylight, ACR filter |
| Original resolution | 2474 x 3708 pixels |
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