Comet C/2022 E3 (ZTF)
C/2022 E3 (ZTF) is a long period comet that was discovered by the Zwicky Transient Facility on 2 March 2022. The comet reached perihelion on 12 January 2023. The closest approach to Earth was on 1 February 2023 at a distance of 1.11 AU (166 million km).
The picture above is from 20 January 2023. More details:
| Telescope | Takahashi FSQ-85EDX at Prime Focus (450 mm) |
| Camera | QSI683 wsg-8, Monochrome CCD Camera, at -20°C |
| Mount | Avalon Linear German Equatorial Mount, HQ version |
| Guiding | Lacerta MGEN-3 Autoguider |
| Filters | Astrodon LRGB E-Series, Generation 2, 31 mm unmounted, 3mm |
| Light Frames | Red: 4 x 5′, Bin 2×2 |
| Green: 5 x 5′; Bin 2×2 | |
| Blue: 3 x 5′; Bin 2×2 | |
| Total Integration Time | 60 Minutes |
| Software | MaxIm DL Pro PixInsight Photoshop Topaz Lab, DeNoise AI |
| Site, Date and Time | Bellerive VD, Switzerland, 20 January 2023, 00:40 – 03:10 h |
| Weather Conditions | Overall good seeing conditions till around 03:00 h Temperatures between -6°C and -9°C Wind: N, light |
| Other Remarks | Due to guiding issues the luminance frames had to be discarded. |
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