Caldwell 33 (Observations)
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| Image | Comment |
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Image processed by Philipp Weber from the 2022 data. Narrowband bicolor image with RGB stars (see comments below). |
| Date | Observer | Telescope | Camera | Exposure | Calibration | Seeing / Sky / Transparency | Path | Comments |
|---|---|---|---|---|---|---|---|---|
| 2022/07/21, 2022/08/03, 2022/08/04, 2022/08/06, 2022/08/08, 2022/08/21, 2022/08/22, 2022/08/23 | Weber, Hämmerich, Reh, Collischon, Prucker, Stierhof, Sokolova-Lapa, Zainab | TS-Optics Photoline 115mm f/7 Triplet APO | ZWO ASI6200MM Pro | 88x600s Ha, 114x600s OIII, 27x180s R, 27x180s G, 27x180s B | Flat, Dark, Bias | (Multiple Nights) | /userdata/data/observer/observations/ASI6200MMPro/EasternVeil | This is a narrowband bicolor image created using Ha in the red channel, OIII in the green and a mixture of 85% OIII and 15% Ha in the blue channel. The stars were extracted from this bicolor image using StarNet. The same was done with the RGB image, the resulting stars of which were placed back in the narrowband image, creating a detailed view of the nebula in narrowband but with broadband, real color, RGB stars. |